HomeMy WebLinkAboutCT 05-13; LA COSTA RIDGE NBHGD 2.6; CLOMR-F; 2007-03-05I
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HUNSAKER
&ASSOCIATES
RECORD COpy
DP--
:":"a...::!lI 5 AND lEG 0, INC. Initial
PLANNING
ENGINEERING
SURVEYING
IRVINE
LOS ANGELES
RIVERSIDE
SAN DIEGO
ARIZONA
DAVE HAMMAR
LEX WILLIMAN
ALiSA VIALPANDO
DAN SMITH
RAY MARTIN
CHUCK CATER
9707 Waples Street
San Diego, CA 92121
(858) 558-4500 PH
(858) 558-1414 FX
www.HunsakerSD.com
Info@HunsakerSD.com
CONDITIONAL LETTER OF
MAP REVISION BASED ON FILL
(CLOMR-F)
for
LA COSTA RIDGE 2.6
City of Carlsbad, California
Prepared for:
Western Pacific Housing
5790 Fleet Street
Suite 210
Carlsbad, CA 92008
W.O. 1751-136
March 5, 2007
Hunsaker & Associates
San Diego, Inc.
Ra ond L. Martin, R.C.E.
Vice President
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La Costa Ridge 2.6
. Conditional Letter of Map Revision Based on Fill
TABLE OF CONTENTS
Chapter 1 -Executive Summary
1.1 Introduction
1.2 Summary of Pre-Development Conditions
1.3 Summary of Developed Conditions
1.4 Summary of Results
1.5 References
1.6 FEMA MT-1 Form
Chapter 2 -Floodplain Analysis Methodology (HEC-RAS)
2.1 Model Selection
2.2 Cross Section Data
2.2.1 Cross Section Locations
2.3 HEC-RAS Model Design Input Parameters
2.3.1 Starting Water Surface Elevations
2.3.2 Manning's Roughness Coefficients
Chapter 3 -Pre-Developed Condition HEC-RAS Results
3.1 Pre-Developed Summary Table
3.1.1 Channel Cross Sections
3.1.2 Channel Profiles
3.1.3 Pre-Developed Condition HEC-RAS Report
Chapter 4 -Developed Condition HEC-RAS Results
4.1 Developed Summary Table
4.1.1 Channel Cross Sections
4.1.2 Channel Profiles
4.1.3 Developed Condition HEC-RAS Report
Chapter 5 -Pre-Developed Condition Floodplain Exhibit
Chapter 6 -Developed Condition Floodplain Exhibit
APPENDIX A -Site Plans for La Costa 2.6
SECTION
II
III
IV
V
VI
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La Costa Ridge 2.6 .
Conditional Letter of Map Revision Based on Fill
List of Tables and Figures
Chapter 1 -Vicinity Map
Chapter 1 -FIRM 06037C1051 F
Chapter 1 -Pre-Developed San Marcos Creek HEC-RAS Water Surface Elevations
Chapter 1 -Pre-Developed Conditions Floodplain Exhibit
Chapter 1 -Post-Developed San Marcos Creek HEC-RAS Water Surface
Elevations
Chapter 1 -Developed Conditions Floodplain Exhibit
Chapter 1 -Pre vs. Post-Developed San Marcos Creek HEC-RAS Water Surface
Elevations
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 1 -EXECUTIVE SUMMARY
1.1 • Introduction
The La Costa Ridge Neighborhood 2.6 project site is located west of Rancho Santa
Fe Road at the intersection of Corintia Street and Melrose Drive intersection within
the City of Carlsbad, California (see Vicinity Map on this page). San Marcos Creek
is adjacent and to the south of the project site.
VICINITY MAP
AI!.SIDI lEm"AUI£ MAP 801JII/lARY
/115
All runoff from the project site will drain to the adjacent San Marcos Creek. Runoff
from the San Marcos Creek eventually discharges into the Batisquitos Lagoon.
This Conditional Letter of Map Revision has been prepared per the request of the
City of Carlsbad. This Conditional Letter of Map Revision was prepared as the La
Costa 2.6 development is adjacent to the previously delineated FEMA floodplain (per
FIRM Map No. 06037C1051 F).
This portion of San Marcos Creek has a floodplain designation of Zone A, hence no
previous detailed analysis exists. Per a previous Army Corps study a peak flow
conveyance of approximately 13000 cfs was identified for the San Marcos Creek at
this location.
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LA COSTA RIDGE
NEIGHBORHOOD 2.6
... • _ \ '&~~ f / / ///~ __ ~~ ~ I / / ,,/ _.:.::-_ ----..... ~ '_. ~ I L .......... --r CITY OF CARLSBAD, CAUFORNIA 1! .. R'\0459\LHyd\04~9SHlO-EX'-rlRH.d.gt 2085]Ma.r-05-2007117~6
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A E B c o F
11'7°15'00"
33"01"30" I _ 1_ JOINS JAlla. 0788 ,1170~·~~:aT.30 ..
13
ZONE X
24
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19
NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN
TOWNSHIP 12 SOUTH. RANGE 4 WEST AND TOWNSHIP 12 SOUTH. RANGE 3 WEST.
CITY OF CARLSBAD
060285
30
31
1 ~~ ~ SAN DIEGO COUNTY -MDMDm .... ~ CITY OF SAN MARCOS /'
°1
ZONE X
20
_._. ____ COUNTY
UNINCORPORATED AREAS
060284
ZONE X
CITY OF SAN MARCOS
060296
'AN DIEGO COtlNTY---+--L UNn{CORPORATED ARElI.S 06Il284
32
,. I 133"05'37"
111°U'01"
LEGEND -5PEC1Al FlOOD HAZARD ARW INUNDA'IlD BY l00-YEAR flOOD
No_bd~~
17
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UNDEVELOPED COASTAl BARRIERS
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NOTES nQ .... plolot .... kI~'C!wIW:nolR'>OdItmnnceI'n>;rlon: ItdMI"""~Id-'Y.S-.aslUb)tctt~fIordtIc.pan!cWrljfrDIII IocoId'''''''~llOlII1:eSgf_slra.ora!lpl.onir!'letrlcf_~ Sp<ocWfm.:!t'-nlN-.
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"~-
MAP REPOSITORY
Raferta Repcsltory Ust/nll on !.up rnd~
Eff£CTlVE DATE OF COUHlYW!DE FlOOD INSURANce RATE MAP'
EFfECTM. DAttlS)OF RevrsrONlSlTO nus PAAEI..:
RoI .. llrtilllA.OOf)INSUIWICERATeIoWEFf£CItVE DATE~ OIIWomaplDdo\omIInow.t.rrldlllllolm .. apc>lylO_1n _1Ofww ........... ~'-t-nntalohhtd.
To~HtIGocIn-Is...ww._*,hA.nnc:Iol9"l"-'" QII=-HIIIDnoIRoad~I'fo;tImIl!.I8OOl~ • APPROXIMATE SCALE IN FEET 500 , ..
FIRM
FLOOD INSURANCE RATE MAP
.!!IMl!m.!'.!!if!.~ ----
MAP NUMBER
06073C10Sl F
EFFECTIVE DATE: JUNE 19, 1997
----'---'--..... ----------------------..:...--.-=-----======-____ -=-L ______ ~_~_~ ___ _
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
1.2 -Summary of Pre-Developed Conditions
The La Costa Ridge Neighborhood 2.6 site is part of the La Costa Ridge
development in the City of Carlsbad, California. The site has been mass graded 'in
anticipation for residential development per the "Grading and Erosion Control Plans
for La Costa Ridge Stockpile Plan" dated September, 2004 by Hunsaker &
Associates.
Per the "Mass Grading Hydrology Study for the Vii/ages of La Costa Neighborhoods
2.1 through 2.5" dated January, 2004 by Hunsaker & Associates, a 48-inch storm
drain located within the adjacent Corintia Street conveys a flow of approximately 154
cfs from the neighboring La Costa Ridge Neighborhood 2.5. This 48-inch RCP
storm drain discharges runoff into the project site, eventually draining overland and
discharging to San Marcos Creek.
Table 1 -Summary of Existing Peak Inflows
Drainage Location Drainage Area 100-Year Peak Flow
(Ac) (cfs)
48-inch RCP from 68.4 154.0 Neighborhood 2.5
The Regional Water Quality Control Board has identified San Marcos Creek as part
of the Carlsbad Hydrologic Unit, San Marcos Hydrologic Area, and the Batiquitos
Subarea (basin number 904.51).
• \ j. >
Table 2 summarizes the HEC-RAS model results for the calculated water surface
elevations for the pre-developed San Marcos Creek at the La Costa 2.6 project site.
Table 2 -Pre-Developed HEC-RAS Water Surface Elevations
Cross Section Location
11 Upstream Limit
10.5 Bridge
10
9
8 Project Boundary
7
6
5
4
3
2
1 Downstream Limit
HEC-RAS 100-Year
Water Surface
Elevation (ft)
338.41
337.02
336.25
335.88
335.08
334.08
333.10
331.92
330.59
328.27
323.71
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. La Costa Ridge 2.6 .'
Conditional Letter of Map Revision Based on' Fill ," .. r .. '
A revised pre-developed floodplain exhibit for San Marcos Creek has been provided
on the following page.
1.3 -Summary of Developed Conditions
Development of the 11.2-acre area will consist of 54 single family residences, foot
paths, communal open space and underground utilities with two (2) entrances from
the adjacent Corintia Street.
Runoff generated by the proposed La Costa Ridge Neighborhood 2.6 development
will be conveyed in a southerly direction via curb and gutter within the proposed site,
draining into two (2) curb inlets. Flow from the adjacent Neighborhood 2.5's 48-inch
RCP storm drain will be conveyed south by a proposed storm drain system within
the Neighborhood 2.6 site. The existing offsite flow will converge with flows from the
developed Neighborhood 2.6 site, discharging into the receiving San Marcos Creek.
Offsite runoff from the adjacent Corintia Street that previously drained to the
proposed La Costa Greens 2.6 project site via two (2) existing curb inlets will be
intercepted via two (2) proposed curb inlets within Corintia Street near the Private
·Street j,c" entranceway .. Flows will be conveyed via public storm drain through the
project site (located within a public easement), confluencing with on site flows prior
, to discharge from the project site.
'Per the "TM Drainage Study for La Costa Ridge 2.6" dated May, 2006 by Hunsaker
& Associates, peak flow data from the developed site to the receiving San Marcos
Creek is summarized in Table 3 below.
, Table 3 -Summary of Post-Developed Conditions
Drainage Location Drainage Area 100-Year Peak Flow
(Ac) (cfs)
48-inch RCP to San 77.1* 174.5 Marcos Creek
*= inclusive of Neighborhood 2.5 tnbutary
Discharge to the receiving San Marcos Creek was analyzed per the "Preliminary
Hydrology for Vii/ages of La Costa -The Ridge and the Oaks" dated April 2001, by
Hunsaker & Associates.
The proposed project will involve grading, elevating all residences above the
ultimate condition 100 year floodplain. Grading will be conducted adjacent to the
floodplain as delineated on the current FIRM.
Table 4 summarizes the HEC-RAS model results for the calculated water surface
elevations for the post-developed San Marcos Creek at the La Costa Ridge 2.6
project site.
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50
~
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50 100 ------
EXISTING FLOODPLAIN
FIRM FLOODPLAIN
FLOWLINE
CROSS SECTION G DATUM NOTE:
NGVD 1929VERTICAL DATUM USED SUIVl'tIIG~'~VI&
LA COSTA RIDGE
-NEIGHBORHOOD 2.6
CITY OF CARLSBAD, CAUFORNIA
R.\04S9\LHyd\0459SH12-EX-HECRAS-dwg(
//
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La Costa Ridge 2.9
Conditional Letter of'Map Revision Based on Fill
Table 4 -Post-Developed HEC-RAS Water Surface Elevations
Computed 100-Adjacent Road
Cross Section Location Year Water Surface/Developed
Surface Elevation Pad Elevation
(ft) (ft)
11 Upstream Limit 338A1 NA
10.5 Bridge NA
10 337.03 NA
9 336.26 NA
8 Project Boundary_ 335.89 348.9
7 335.08 348.9
6 334.08 351.0
5 333.10 354.3
4 331.92 3!j5.7
3 330.59 358.6
2 328.27 359.5
1 Downstream Limit 323.71 NA
1.4 -Summary of Results
Hydraulic computations were modeled using the HEC-RAS program for the water-
surface profiles of the drainage channels. The 1 OO-year peak flow of 13000 cfs was
used as the base flood for the San Marcos Creek hydraulic model. The HEC-RAS
model was used to ascertain water surface elevations, flow velocities and the
updated floodplain boundary.
Table 5 summarizes the pre versus post-developed HEC-RAS model results for the
calculated water surface elevations for the San Marcos Creek within the La Costa
Ridge 2.6 site.
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60 60 120 --------_ .. -... _.
PROPOSED FLOODPLAIN
EXISTING FLOODPLAIN
FLOWLINE
CROSS SECTION @
t'
..-
~
DATUM NOTE:
NGVO 1929 VERTICAL DATUM USED
HUNSAKER &ASSOCIATES
S A Ie D If C Q. tie C.
DEVELOPED FLOODPLAIN
LA COSTA RIDGE
NEIGHBORHOOD 2.6
CITY OF CARLSBAD, CAUFORNIA
/"
SHEET
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~'04S9\~yd\04S9$Hll-DEV-H£CRAS.dwgt 20BSlHo.,.-OS-2.007114130
FEDERAL EMERGENCY MANAGEMENT AGENCY
COMMUNITY ACKNOWLEDGMENT FORM
PAPERWORK BURDEN DISCLOSURE NOTICE
o'M.B. NO. 3tJ67-0147
Expires September 36, 2005
public reporting burden for this form is estimated to average 0.88 hour per response. The burden estimate includes the time for reviewing instructions,
searching existing data sources, gathering and maintaining the needed data, and completing, reviewing, and submitting the form. You are not required
to respond to this collection of information unless a valid OMB control number appears in the upper right corner of this form. Send comments regarding
the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Federal Emergen<,y
Management Agency, 500 C Street. SW, Washington DC 20472, Paperwork Reduction Project (3067-0147). Submission of the form is required to
.obtain or retain benefits under the National Flood Insurance Program. Please do not send your completed survey to the above address.
This form must be completed for requests involving the existing or proposed placement of fill (complete Section A) .QR to provide acknowledgment of
this request to remove a propertj from the SFHA which was previously located within the regulatory floodway (complete Section B).
This fOr(l1 must be completed and signed by the official responsible for floodplain management in the community. The community number and the
subject propertj address must appear in the spaces provided below.
Community Number: Property Name or Address:
A. REQUESTS INVOLVING THE PLACEMENT OF FILL
As the community official responsible for floodplain management, I hereby acknowledge that we have reGeived and reviewed this Letter of Map ReVision
Based on Fill (LOMR-F) or Conditional LOMR-F request. Based upon the community'S review, we find the completed or proposed project'meets' or is
, ; designed to meet all of the community floodplain management requirements, il'lcluding the requirement that no fill be placed in the regulatory floodway.,
: and that all necessary Federal, State, and local permits have been, or in the case of a Conditional LOMR-F, will be obtained. In addition, we have
,determined that the land and any existing or proposed structures to be removed from the SFHA are orwill be reasonably safe from flooding'as defined in
,44CFR 65.2{c), and that we have available upon request by FEMA, all analyses and documentation used to make this determination, For LOMR-F
,requests, we understand that this request is being forwarded to FEMA for a possible map revision.
,
) Community Comments:
. ~:'to ormmunity Offic .. ial's Name and Title: (Please Pn'nt or fype) V ~elepho,\e No.: . o.
,\. 7~OJC,b2.,'2. 7 c,1
;B. PROPERTY LOCATED WITHIN THE REGULATORY FLOORfVvAY
;' As 'the community o;icial responsible for floodplain managCent, I hereby acknowledge that we have received and rev;ewed this reque~t fora LOMA.
:We understand thfjt this request is being forwarded to FEMA to determine if this property has been inadvertently included in the regulatory floodway. W~'acknowledge that no fill on this property has been or will be placed within the deSignated regulatory floodway. We find that the completed or
. :.proposed project meets or is designed to meet all of the community floodplain management requirements.
~Community Comments:
I· V, ~ !¢oll1munity Official's Name and Title: (Please Print or Type) Telephone N9.:
F '~ ~, "
i ': . 'ComrhunitY Name:
t':'::· " .. ,
.;.. -' , , . :-,'-'.
t;·., ':c. ''''',
Community Official's Signature (required): Date:
Community Acknowledgment Form MT~1 Form 3 Page 1 of 1
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• " La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
Table 5 -Pre vs. Post-Developed HEC-RAS Water Surface Elevations
Pre-Developed Post-Developed
Cross Computed 100-Computed 100-Difference Location Year Water Year Water Section Surface Surface Elevation (ft)
Elevation (ft) (ft)
11 Upstream Limit 338.41 338.41 0
10.5 Bridge 0
10 337.02 337.0~ + 0.01
9 336.25 336.26 + 0.01
8 Project Boundary 335.88 335.89 + 0.01
7 335.08 335.08 ·0
6 334.08 334.08 0
5 333.10 333.10 0
4 331.92 331.92 0
3 330.59 330.59 0
2 328.27 328.27 , 0
1 Downstream Limit 323.71 323.71 0
HEC-RAS model creation methodology is located in Chapter 2 of this report. HEC-
RAS cross section data, summary tables and program output files are located in
Chapters 3 & 4.
Based upon the results of HEC-RAS analysis, the proposed La Costa Ridge 2.6
development has been elevated several feet above the adjacent floodplain.
1.5 -References
"San Diego County Hydrology Manual': County of San Diego Department of Public
Works -Flood Control Section; June 2003.
"TM Drainage Study for La Costa Ridge 2.6': Hunsaker & Associates, May 2006.
"Preliminary Hydrology for Vii/ages of La Costa -The Ridge and the Oaks" j
Hunsaker & Associates; April 2001.
"Mass Grading Hydrology Study for the Vii/ages of La Costa Neighborhoods 2.1
through 2.5", Hunsaker & Associates; January 2004.
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FEDERAL EMERGENCY MANAGEMENT AGENCY
PROPERTY INFORMATION FORM
PAPERWORK BURDEN DISCLOSURE NOTICE
OMB. NO. 3067-0147
Expires September 30, 2005
Public reporting burden for this form is estimated to average 1.63 hours per response. The burden estimate includes the time for reviewing instructions,
searching existing data sources, gathering and maintaining the needed data, and completing, reviewing, and submitting the form. You are not required
to respond to this collection of information unless a valid OMB control number appears in the upper right corner of this form. Send comments regarding
the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Federal Emergency
Management Agency, 500 C Street, SW, Washington DC 20472, Paperwork Reduction Project (3067-0147). Submission ofthe form is required to obtain
or retain benefits underthe National Flood Insurance Program. Please do not send your completed survey to the above address.
This form may be completed by the property owner, property owner's agent, licensed land surveyor, or registered professional engineer to support a
request for a Letter of Map Amendment (LOMA), Conditional Letter of Map Amendment (CLOMA), Letter of Map Revision Based on Fill (LOMR-F), or
Conditional Letter of Map Revision Based on Fill (CLOMR-F) for existing or proposed, single or multiple lots/structures. Please check the item below
th at describes you r reQU est
D LOMA
D CLOMA
D LOMR-F
~ CLOMR-F
A letter from FEMA stating that an existing structure or parcel of land that has not been elevated by fill
(natural grade) would not be inundated by the base flood.
A letter from FEMA stating that a proposed structure that is not to be elevated by fill (natural grade)
would not be inundated bv the base flood if built as proposed.
A letter from FEMA stating that an existing structure or parcel of land that has been elevated by fill
would not be inundated by the base flood.
A letter from FEMA stating that a parcel of land or proposed structure that will be elevated by fill
would not be inundated by the base flood if fill is placed on the parcel as proposed or the structure is
built as proposed.
8lLis defined as material from any source placed to raise the ground to or above the Base Flood Elevation (BFE). The common construction practice of
removing unsuitable eXisting material (topsoil) and backfilling with select structural material is not considered the placement of fill if the practice does not
alter the existing (natural grade) elevation, which is at or above the BFE. Fill that is placed before the date of the first National Flood Insurance
Program (NFIP) map showing the area in a Special Flood Hazard Area (SFHA) is considered natural grade.
Has fill been placed on your property? D Yes ~NO If yes, when was fill placed?
Will fill be placed on your property? [0"Yes D No If yes, when will fill be placed?
1. Street Address of the Property (if request is for multiple structures, please attach additional sheet): WA
month/year
~ 107
month/year
2. Legal description of Property (Lot, Block, Subdivision) (if a street address cannot be provided): APN 22 &-72-0 -o~
3. Are you requesting that the SFHA designation be removed from (check one):
D the entire legally recorded property? ~ a portion of land within the bounds of the property (a certified metes and bounds description and map of the area to be removed,
certified by a licensed land surveyor or registered professional engineer, are required)?
D structures on the property? What are the dates of construction?
4. Is this request for a (check one): D single structure
g~glelot .
lli multiple structures (How many structures are involved in your request? List the number: S"~ ) D multiple lots (How many lots are involved in your request? List the number: )
FEMA Form 81-87, SEP02 Property Information Form MT-1 Form 1 Page 1 of2
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• Copy of the Plat Map for the property (with recordation data and stamp of the Recorder's Office)
OR
• Copy of the property Deed (with recordation data and stamp of the Recorder's Office), accompanied by a tax assessor's map or other certified
map showing the surveyed location of the property relative to local streets and watercourses
• Copy of the effective FIRM panel ancllor Flood Boundary and Floodway Map (FBFM) (if applicable) on which the property location has been
accurately plotted (property inadvertently located in the NFIP regulatory floodway will require Section B of MT-1 Form 3)
• Form 2 -Elevation Form. If an Elevation Certificate has already been completed for this property, it may be submitted in addition to Form 2.
Please include a map scale and North arrow on all maps submitted.
For LOMR-Fs and CLOMR-Fs, the following must be submitted in addition to the items listed above:
• Form 3 -Community Acknowledgment Form
Processing Fee (see instructions for appropriate mailing address; or, visit http://www.fema.govlplan/preventJfhmlfrmJees.shtm for the most current
fee schedule)
Revised fee schedules are published periodically, but no more than once annually, as noted in the Federal Register. Please note: single/multiple
lot(s)/structure(s) LOMAs are fee exempt. The current review and processing fees are listed below:
Check the fee that applies to your request:
D $325 (single lot'structure LOMR-F following a CLOMR-F)
o $425 (single lot'structure LOMR-F)
o $500 (single lot'structure CLOMA or CLOMR-F)
[J $700 (multiple lot/structure LOMR-F following a CLOMR-F, or multiple lot'structure CLOMA)
1Q($800 (multiple lot'stru~ture LOMR-F or CLOMR-F)
Please submit the Payment I nformation Form for remittance of applicable fees. Please make your check or money order payable to: National Flood
Insurance Program.
All documents submitted in support of thiS request are correct to the best of my knowledge. I understand that any false statement may be punishable by
fine or imprisonment under Title 18 of the United States Code, Section 1001. ,\ 1 ~ 1> -f"'>.... I • W~ 1I 1iiGthc:.. Hi>l.(g' [VaG. I db r-
Company: Pt2. l~~ :. _ ~ I a Applicant's Name: WV\A~'1 ~~b~
Please Print or Type
Mailing Address: Daytime Telephone NO·:(t Cc 0) q"2,..'1-I ~OO
E-Mail Address: Fax No.:
(optional)
Date Signat~pp'tant (required)
If you have any questions concerning FEMA policy, or the NFIP in general, please contact the FEMA Map Assistance Center toll free at 1-877-FEMA
MAP (1-877-336-2627), or visit the Flood Hazard Mapping website at http://www.femagov/planlpreventJfhm.
FEMA Form 81·87, SEP 02 Property Information Form MT·1 Form 1 Page 2 of2
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FEDERAL EMERGENCY MANAGEMENT AGENCY
ELEVATION FORM
PAPERWORK BURDEN DISCLOSURE NOTICE
o.Mil. NO. 3067-0147
Expires September 30, 2005
Public reporting burden for this form is estimated to average 1 hour per response. The burden estimate includes the time for reviewing instructions,
searching existing data sources, gathering and maintaining the needed data, and completing, reviewing, and submitting the form. You are not required
to respond to this collection of information unless a valid OMB control number appears in the upper right corner of this form. Send comments regarding
the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Federal Emergency
Management Agency, 500 C Street, SW, Washington DC 20472, Paperwork Reduction Project (3067-0147). Submission of the form is required to
obtain or retain benefits underthe National Flood Insurance Program. Please do not send your completed survey to the above address.
This form must be completed for requests and must be completed and signed by a registered professional engineer or licensed land surveyor. A FEMA
National Flood Insurance Program (NFIP) Elevation Certificate may be submitted in addition to this form for single structure requests.
For requests to remove a structure on natural grade OR on engineered fill from the Special Flood Hazard Area (SFHA), submit the lowest adjacent
grade (the lowest ground touching the structure), including an attached deck or garage. For requests to remove an entire parcel of land from the SFHA,
provide the lowest lot elevation; or, if the request involves an area described by metes and bounds, provide the lowest elevation with'in the metes and
bounds description.
1. NFIP Community Number: 0<002.9 C-Property Name or Address: LeJv c..~\-4-~ ~ce;(,..t.; ./L·b
2. Are the elevations listed below based on D eXisting or [2(proposed conditions? (Check one)
3. What is the elevation datum? If any of the elevations listed below were computed using a datum different than the datum used for the
effective Flood Insurance Rate Map (FIRM) (e.g., NGVD 29 or NAVD 88), what was the conversion factor?
N Gt(V 'P 2.. If Local Elevation +/. ft. = FIRM Datum
4. For the existing or ~sed structures listed below, what are the types of construction? (check all that apply) D crawl space slab on grade D basement/enclosure D other (explain)
5. Has FEMA identified this area as subject to land subsidence or uplift? (see instructions) DYes @NO
If yes, what is the date of the current releveling? / (month/year)
Lowest
Lot Number Block Lowest Lot Adjacent Base Flood
Number Elevation Grade To Elevation For FEMA Use Only
Structure
fCt> ':2..':2.-:!I '3.~a·t:f 'aIfS'O '6 '!.S. &q
l~ Z. '2...']. -a~S' q 3~B·O -a '&.s-. 0 '1
" '2.'2-30 '6'i'I.O aCO·O 'eU£(· 0'("
This certification is to be signed and sealed by a licensed land surveyor, registered professional engineer, or architect authorized by law to certify
elevation information. All documents submitted in support of this request are correct to the best of my knowledge. I understand that any false
statement may be punishable by fine or imprisonment under Title 18 of the United States Code, Section 1001.
Certifier's Name: :l2. (;V'1I M., f?I/' +; _ License No.: 4-f 6 -r 0 Expiration Date: C,/~o(o~ .
Company N~e~ 1I~'S~.f Mt'"oc104 Telephone No.: 'Cff"-C-r-f'-&fl'OQ Fax No.: fM"'F -"t'S""& -{'f (~
Signature: ~.-., .-fk /jAr:. 1-Date: 'O{-' (07
U
Seal (optional)
FEMA Form 81~7A, SEP 02 Elevation Form MT·1 Form 2 Page 1 of2
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Continued from Page 1.
Block Lowest Lot Lowest Base Flood Lot Number Number Elevation Adjacent Grade Elevation For FEMA Use Only
To stru ctu re
7 ~2.3 3S'f.~ '6$'If'.O 3aa'lo
~ 2-.2. ',!, 3Sl' ., gs~.o $'&\·01"2-
q 2'2..'3 '6c;g.~ :>58 ·0 '!.30.~c:t
'2-l-2.':!» J('~. S' 5~Cf. 0 '3;2.9· 2-7
This certification is to be signed and sealed by a licensed land surveyor, registered professional engineer, or architect authorized by law to certify
elevation information. AI! documents submitted in support of this request are correct to the best of my knowledge. I understand that any false
statement may be punishable by fine or imprisonment under Title 18 of the United States Code, Section 1001.
Certifier's Name: ~ iUotrj!. __ License No.: ~b70 Expiration Date: e,,( 1. 0 10 If"
Company ~me: e./(.fI'\Vrc::(~ ..f Arroc,.'~ .... Telephone No.:~ f--J""S' ~-"t"S'oa Fax No.: Y1''r-')~ i"-Ict(l{-
Signature: cb.~ ...... JZ~C Date: %(,(07 ~
(j .,.
Seal (optional)
FEMA Form 81-87A, SEP 02 Elevation Form MT·1 Form 2 Page 2 of2
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FEDERAL EMERGENCY MANAGEMENT AGENCY
COMMUNITY ACKNOWLEDGMENT FORM
PAPERWORK BURDEN DISCLOSURE NOTICE
O.M.B. NO. 3067-0147
Expires September 30, 2005
Public reporting burden for this form is estimated to average 0.88 hour per response. The burden estimate includes the time for reviewing instructions,
searching existing data sources, gathering and maintaining the needed data, and completing, reviewing, and submitting the form. You are not required
to respond to this collection of information unless a valid OMB control number appears in the upper right corner of this fonm. Send comments regarding
the accuracy of the burden estimate and any suggestions for reducing this burden to: Information Collections Management, Federal Emergency
Management Agency, 500 C Street, SW, Washington DC 20472, Paperwork Reduction Project (3067-0147). Submission of the form is required to
obtain or retain benefits under the National Flood Insurance Program. Please do not send your completed survey to the above address.
This form must be completed for requests involving the existing or proposed placement of fill (complete Section A) OR to provioe acknowledgment of
this request to remove a property from the SFHA which was previously located within the regulatory floodway (complete Section B).
This fonm must be completed and signed by the official responsible for floodplain management in the community. The community number and the
subject property address must appear in the spaces provided below.
Community Number: Property Name or Address:
A. REQUESTS INVOLVING THE PLACEMENT OF FILL
As the community official responsible for floodplain management. I hereby acknowledge that we have received and reviewed this Letter of Map Revision
Based on Fill (LOMR-F) or Conditional LOMR-F request. Based upon the community's review, we find the completed or proposed project meets or is
designed to meet all of the community floodplain management requirements, including the requirement that no fill be placed in the regulatory floodway,
and that all necessary Federal, State, and local permits have been, or in the case of a Conditional LOMR-F, will be obtained. In addition, we have
determined that the land and any existing or proposed structures to be removed from the SFHA are orwill be reasonably safe from flooding as defined in
44CFR 65.2(c), and that we have available upon request by FEMA, all analyses and documentation used to make this determination. For LOMR-F
requests, we understand that this request is being forwarded to FEMA for a possible map revision.
Community Comments:
Community Official's Name and Title: (Please Print or Type) Telephone No.:
Community Name: Community Official's Signature: (required) Date:
B. PROPERTY LOCATED WITHIN THE REGULATORY FLOODWAY
As the community official responsible for floodplain management, I hereby acknowledge that we have received and reviewed this request for aLOMA.
We understand that this request is being forwarded to FEMA to determine if this property has been inadvertently included in the regulatory floodway.
We acknowledge that no fill on this property has been or will be placed within the designated regUlatory floodway. We find that the completed or
proposed project meets or is designed to meet all of the community floodplain management requirements.
Community Comments:
Community Official's Name and Title: (Please Print or Type) Telephone No.:
Community Name: Community Official's Signature (required): Date:
FEMA Form 81·87B, SEP 02 Community Acknowledgment Form MT-1 Form 3 Page 1 of 1
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Community Name:
Project Identifier:
FEDERAL EMERGENCY MANAGEMENT AGENCY
PAYMENT INFORMATION FORM
CA ~ 0 -?-c..-o..r-\" bo-o<'
L ov (..0 '\ +-<7\,./ <:i2-< o{.~ ...e---' 1-. ~
"~------~---------------------+-.------------------------------------~ lHIS FORM MUST BE MAILED, ALONG WIlH lHE APPROPRIAlE FEE, 10 lHE ADDRESS B8..0W OR FAXED 10 lHE FAX NUMBER BELOW,
Type of Request:
~T-1 application } D MT-2 application
D EDR application }
Request No,: _____ _ (if known)
FEMA
Fee Charge System Administrator
P.O, Box 22787
Alexandria, VA 22304
FAX (703) 317-3076
FEMA Project Library
3601 Eisenhower Avenue
Alexandria, VA 22304
FAX (703) 751-7391
Amount: ~'8" 0
D INITIAL FEE' D FINAL FEE D FEE BALANCE" D MASTER CARD D VISA U2('CHECK D MONEY ORDER
'Note: Check only for EDR and/or Alluvial Fan requests (as appropriate),
"Note: Check only if submitting a corrected fee for an ongoing request.
COMPLETE lHlS SECTION ONL V IF PAVING BV CREDIT CARD
CARD NUMBER
I I I I 1-/ I I I I-I I I I I
1 2 3 4 5 6 7 8 9 10 11 12
Date
NAME (AS IT APPEARS ON CARD)'
(please print or type)
$
ADDRESS:
(for'your
credit card
receipt-please
print or type)
DAYTIME PHONE:
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13 14 15 16
Signature
FEMA Form 81·107 Payment Information Form
EXP.DATE
CD CD
Month Year
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EXHIBIT "A"
LEGAL DESCRIPTION
A PORTION OF LOT 223 LYING WITHIN THE BOUNDARY OF CITY OF CARLSBAD I TRACT 99-04-02, VILLAGES OF LA COSTA -LA COSTA RIDGE, IN THE CITY OF
CARLSBAD, COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, ACCORDING TO MAP I THEREOF NO. 14838, FILED IN THE OFFICE OF THE SAN DIEGO COUNTY RECORDER,
JULY 14, 2004 AS FILE NO. 2004-0655633, OF OFFICIAL RECORDS, BEING MORE
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PARTICULARLY DESCRIBED AS FOLLOWS:
BEGINNING AT THE NORTHEAST CORNER OF LOT 233 OF MAP 14379 IN THE CITY OF
CARLSBAD, COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, FILED IN THE OFFICE OF
THE SAN DIEGO COUNTY RECORDER, APRIL 29, 2002 AS FILE NO. 2002-0358064, OF
OFFICIAL RECORDS; THENCE ALONG THE NORTHERLY LINE OF SAID LOT 233, SOUTH
65°28'00" WEST, 256.41 FEET; THENCE LEAVING SAID NORTHERLY LINE, NORTH
24°32'00" WEST, 25.97 FEET; THENCE NORTH 64°35'00" EAST, 191.04 FEET; THENCE
NORTH 16°10'00" EAST, 80.83 FEET; THENCE NORTH 30°20'00" EAST, 71.68 FEET;
THENCE SOUTH 6rOO'00" EAST, 14.96 FEET TO THE CENTERLINE OF THE ROAD
EASEMENT PER DOCUMENT RECORDED APRIL 7, 1966 AS DOCUMENT NO. 58549 OF
OFFICIAL RECORDS; THENCE ALONG SAID CENTERLINE SOUTH 00°31'43" WEST,
118.88 FEET TO THE BEGINNING OF A TANGENT 400.00 FOOT RADIUS CURVE,
CONCAVE EASTERLY, THENCE SOUTHERLY ALONG THE ARC OF SAID CURVE
THROUGH A CENTRAL ANGLE OF 01°59'47" A DISTANCE OF 13.94 FEET TO THE
POINT OF BEGINNING.
CONTAINING 0.293 ACRES, MORE OR LESS.
APN 223-720-03
~~ 3. <>t:.·Z<>07 ~ . AMBLER L.S. 7322
HUNSAKER & ASSOCIATES SAN DIEGO, INC.
:M:\1751\136\Legal Description\A01.doc
WO 1751-136 3/6/07
PAGE 1 OF 1
L.S. 7322
I EXHIBIT B
PORTION OF LOT 223 -MAP NO. 14838
I 0 100 200
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300
~ ! I SCALE 1"= 100'
\
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\
\
\
MAP NO. 14B3B \
223 \
APN 223-720-03 \
\
N24"32'OO"W
25.97' I MAp 14319
L01 233
POB
NE COR
LOT 233
~ ;;.
L ROAD EAS.
4/7/1966, F/P.
58549, O.R.
~
1:.=01"59'47"
R=400.00'
\ L=13.94'
\ \ !:I§?"J C!2Q.''f(Bl
II~------------------------------~
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1-=
HUNSAKER I ~~~~9f~!ES CARLSBAD
)
I VICINITY MAP
~~~~~~~ ____ ~ ________ ~N~.T.~.£~ ________ ~
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La Costa Ridge 2.6 .
Conditional Letter of Map Revision Based on Fill
CHAPTER 2
FLOODPLAIN ANALYSIS METHODOLOGY
HEC-RAS
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 2
METHODOLOGY -FLOODPLAIN ANALYSIS
2.1 Model Selection
HEC-RAS River Analysis System
This software allows for the modeling water surface profiles for one-dimensional
steady gradually-varied flow. The basic computational procedure is based upon the
solution of the one-dimensional energy equation. Energy losses are evaluated by
friction (Manning's equation) and contraction/expansion (coefficient multiplied by the
change in the velocity head). The momentum equation is used in situations where
the water surface profile is rapidly varied. These situations include mixed-flow
regime calculations (such as hydraulic jumps), hydraulics of bridges, and evaluating
profiles at river confluences.
The effects of various obstructions such as bridges, culverts, weirs, and structures in
the floodplain may be considered in the computations. This software is designed for
the computation of FEMA floodplain boundaries and floodway encroachments.
2.2 Cross Section Data
Cross Section Locations
Hydraulic model cross sections are generally taken where a change in channel
geometry or a flow change takes place. Cross sections for this analysis have been
taken approximately every fifty (50) feet. .
Where bridges, culverts, or other obstructions block the flow path, a lower cross
section interval is necessary.
2.3 HEC-RAS Model Design Input Parameters
Starting Water Surface Elevations
Boundary conditions are necessary to establish the starting water surface elevation
at the upstream and downstream ends of a river system. A starting water surface
elevation is necessary for the program to begin calculations.
In a subcritical flow regime, boundary conditions are necessary at the downstream
end of the river system. Supercritical flow regimes require boundary conditions at
the upstream end of the river system. In a mixed-flow regime, boundary conditions
are required at both the upstream and downstream ends.
DE:de h:lreporlsI175111361clomrldom,_01.doc
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
The four types of boundary conditions are:
1. Known Water Surface Elevation
2. Critical Depth
3. Normal Depth
4. Rating Curve
In this analysis, as no existing FEMA study exists for the San Marcos Creek at this
location, upstream and downstream known water surface elevations are unknown.
Hence, a normal depth calculation was applied for the downstream water surface
elevation and upstream critical depth slope was used in the developed conditions
analysis for the San Marcos Creek analysis.
Manning's Roughness Coefficients
Manning's values ranging from 0.035 to 0.1 were used to represent the proposed
developed graded and existing embankments of the San Marcos Creek.
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 3
PRE-DEVELOPED CONDITIONS
HEC-RAS RESULTS
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 3.1
PRE-DEVELOPED SUMMARY TABLE
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--- ---- -----------
HEC-RAS Plan: Existing River: San Marcos Creek Reach: 1 Profile: PF#1
;;-'?R~"~G~ [.~ D~~li~r,;$J~] i :\;0pi~fiI~~~::: r<Q~]Q[~E ~ f~Mllj;:~~;~~·:' ::~Wffu~~J~i::; :'F¢[it~;§~) :s~~:13:;~l~y,:j >l~'{$}.~~R~tt&~.~ (Mi(~i1tiec~~F;j§.wY&i~~l2~ ;'~iqIiWT~tii'~: :iE!if9.@:~6nU
~.:;'<~;,::' ~t; :~;';~~( ~:}:Xy,::~,:,,,~;;:: O:',·~\~~ ?~f,,):;T:;~ (::?:(cf~f2i~" ~'~:-"~;~@r:~?} ,,:~L,;~~(t!}:~':<::S :":/:~;({tL~~. ~ ::;::;::j(ftr;!~~} ~ ,f:~'tMtE;{~:, '~:~~~;~@§)J::;~3 '::~«§~lJ,tf! f;~~' ~?:~::~Hij~~ :~~:~ ;I)?;· ~,rT:" ":"~. ", ," '.
rj:;~!-~~;.:){.;~;.r~~W:'~i:f~d-:;~Jff:#,f:;;;'?,:,:· 13000,00 323,50 338,41 332.22 338,86 0,007506 5.42 2410,28 289,09 0,32
51jj:-:i:~§~E~I;1J),j.$:;;::~1< ~~~. f:::. -,; ';;J:.~;. :,-: -:, Bridge ',.· __ -.n_ ..... <.~,,' ... _ "'." .. ~ .. _.~,, __ ~,'_e._ ... ~-~"'.'"~, .~.~n~". ~
{~~:·~':;.:::~\:·;;I;~r(;'~~~:':./'lpFih":" 1 13000,001 320.401 335,881 336,271 0,0055621 5,181 2667.881 544,131 0,29
'j::~:: ~'r:;~-H:7~'·"::;.:-.' ;;'·IPF#1;:'-., 13000,001 319,721 335.081 335,521 0,0070301 5.961 2660.801 390.631 0,32
1~·::-·'~':~.~:T6":":·,'·~: ~'IPF#1 13000,001 318.60\ 334,081 334,69\ 0,0093091 6,321 2136,271 271,721 0.36
0.40
0.44
0,43
0.55
1.;·,~·'~T:'h:':-· ,',IPF#1 13000,00\ 311,761 323.711 323,711 328,291 0,0081681 17,281 773,681 90,761 0.96
-
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 3.1·.1
CHANNEL CROSS SECTIONS
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--
g
c 0 ~ > Q)
W
g
c 0 ~ > Q)
ill
-- - -----
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 11
350
.1 ~I( .1 )I( .1 1
345-1 /
3401 \ I
335
}, ... .. + '
330
325
320
850 900 950 1000 1050 1100 1150 1200 1250
Station (ft)
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 10.5 BR
355 ~.1 + .1 )~.H~
350
345 ~t n'on,,,', ',,:,r 'i'/ ~ ,,: l:
340 :::"'r
t:J I~ 1
335 I:' ;,
" 330 + .. , It'~1 ~
325 l'i
320
Legend
WS PF#1
'''+, "
Crit PF#1
• Ground • Bank Sta
Legend
WS PF#1
" .. " + "
Crit PF#1
Ground • Bank Sta
700 800 900 1000 1100 1200
Station (ft)
g
c .Q ro > Q)
W
g
c 0 ~ ~ W
- -- --- --
355
350
345
340
335
330
325
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 10.5 BR
~.1 + .1 + .11
"" ~,'l
"---'~f-------+_ ....
320 I I I I I I I I I
Legend
WS PF#1
---+. _ ... ""._-
Crit PF#1
Ground • Bank Sta
850 900 950 1000 1050 1100 1150 1200 1250
Station (ft)
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 10 Cross Section #10
, .1-+ .1 +.1..J
350-• I
345
340
335
330
325
320
700 800 900 1000 1100 1200
Station (ft)
Legend
WS PF#1
Ground
" Bank Sta
-
--
g
c: 0 ~ > Q) ill
g
c: o ~ Q)
ill
------- ------ - --
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 9 Cross section #9
370 .1-+-.1-+-.1---1
360~ ~
350
340
330
320 I I T7
700 800 900 1000
Station (ft)
1100 1200 1300
San Marcos Creek-Existing Plan: Existing 3/5/2007
Legend
WS PF#1
• Ground • Bank Sta
River:: San Marcos Creek Reach = 1 RS = 7 Cross-Section #7
380 .1-+-.1 + .1 >1
370
360
350
340
330
320
310 I , , , " , , , i
Legend
WS PF#1
Ground • Bank Sta
600 700 800 900 1000 1100 1200 1300 1400
Station (ft)
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 8 Cross section #8
.1-+-.1~.1 >1
Legend
WS PF#1
Ground
~
g 350
Ineff • Bank Sta c: o ~ ill
g
c: o ~ ill
600 800 1000 1200 1400 1600
Station (ft)
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 6 Cross-Section #6
400 i( .1 + .1-+-.14
380
360
340
320
300-r1 ;;o-r-r--r-;;r,,~""""'""",,-:!"::",.....--.-'---.-.---.-..... -,---;r-r-~-400 600 800 1000 1200 1400
Station (ft)
Legend
WS PF#1
Ground • Bank Sta
-
----,---- - - -- --- --_.-
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 5 Cross-Section #5
g
c 0 ~ > Q)
iIi
400 IE .1-+-.1 ~.1---1
380
360
340
320
300
400 600 800 1000 1200 1400
Station (ft)
San Marcos Creek-Existing Plan: Existing 3/5/2007
Legend
WS PF#1
Ground • Bank Sta
River = San Marcos Creek Reach = 1 RS = 3 Cross-Section #3
400
380
g 360
c o ~
.!!1 340 w
320
.1-+-.1 + .1 ,
300 I I I I I I I I I
700 800 900 1000 1100 1200 1300 1400 1500
Station (ft)
Legend
WS PF#1
Ground • Bank Sta
San Marcos Creek-Existing Plan: Existing 3/5/2007
RS = 4 Cross-Section #4 River = San Marcos Creek Reach = 1
400
380
g 360
c o ~ ~ 340 w
320
.1 + .1 ~.1~
300 I I I I I I I I I
600 700 800 900 1000 1100 1200 1300 1400
Station (ft)
San Marcos Creek-Existing Plan: Existing 3/5/2007
Legend
WS PF#1
Ground • Bank Sta
River = San Marcos Creek Reach = 1 RS = 2 Cross-Section #2
400-r-.1-+-.1 + .1 ,
380
g 360
c o ~
.!!1 340 w
320
300 I I I I I I I I I 800 900 1000 1100 1200 1300 1400 1500 1600
Station (ft)
Legend
WS PF#1
Ground • Bank Sta
--
g
c o ~ (j)
iIi
- -- - ----
San Marcos Creek-Existing Plan: Existing 3/5/2007
River = San Marcos Creek Reach = 1 RS = 1 Cross-Section #1 DIS (Dr. Chang's Cross SecUon #6.047)
370 r ,035 +035+ ,035 1
Legend
WS PF#1 360 + ...
350
340
330
320
310+1~'~~rr"TT~~"rr""""~""rr,,, 800 900 1000 1100 1200 1300 1400 1500
Station (ft)
Crit PF#1 -Ground • Bank Sta
- - --- -- --
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 3.1.2
CHANNEL PROFILE
DE:de h:lreportsI175111361c1omrlclom,_01.doc
w.o.1751·136 3/5120072:26 PM
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g
c o
350
340
~ 330
Q)
[jJ
320
o
1 in Horiz. = 100 ft 1 in Vert. = 5 ft
200 400
San Marcos Creek-Existing
San Marcos Creek 1
600
Plan: Existing 3/5/2007
800
Main Channel Distance (ft)
,.-.' •..•. , ...... _ ..•.... _ ...... _ .. -
~ ........ ~ ....... ~ ..
1000
J 1
Legend
WS PF#1 . __ .• __ .• +._ .• _--.•
Crit PF#1
Ground
..... ~~ ... -~.
1200
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 3.1.3
PRE-DEVELOPED CONDITION
HEC-RAS REPORT
DE:de h:lreporlsI175111361clomrlclomr_01.doc
w.o.1751-136 3/5/20072:26 PM
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SMC_Existing.rep
HEC-RAS version 3.1.3 May 2005
u.s. Army corp of Engineers
Hydrologic Engineering Center
609 second street
Davis, california
x X ~ xxxx xxxx XX
X X X X X
X X X X
XXXXXXX xxxx X XXX
X X X X
X X X X X
X X ~ xxxx
PROJECT DATA project Title: San Marcos creek-Existing
project File: SMC_Existing.prj
Run Date and Time: 3/5/2007 5:13:36 PM
project in English units
project Description:
San Marcos creek Floodplain Analysis
PLAN DATA
X X X X
X X X X xxxx ~
X X X X
X X X X
X X X X
xxxx
X
X xxxx
X
X xxxxx
plan Title: Existing
plan File: C:\Documents and settings\dedwards\Desktop\san Marcos creek rev-2-24-03\SMC_Existing.p03
Geometry Title: Existing Conditions
Geometry File : C:\Documents and settings\dedwards\Desktop\san Marcos
creek rev-2-24-03\SMC_Existing.g03
Flow Title : Existing Conditions
Flow File : C:\Documents and Settings\dedwards\Desktop\san Marcos
Creek rev-2-24-03\SMC_Existing.f02
plan summary Information:
Number of: Cross sections 11
culverts = 0 Bridges = 1
Multiple openings = Inline Structures =
Lateral Structures =
computational Information
Water surface calculation tolerance =
critical depth calculation tolerance =
Maximum number of iterations =
Maximum difference tolerance
Flow tolerance factor =
computation options
0.01
0.01
20
0.3
0.001
critical depth computed only where necessary
conveyance calculation Method: At breaks in n values only
Friction slope Method: Average conveyance
computational Flow Regime: Mixed Flow
Page 1
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SMC_Existing.rep
FLOW DATA
Flow Title: Existing conditions
Flow File : C:\Documents and settings\dedwards\Desktop\san Marcos Creek
rev-2-24-03\SMC_Existing.f02
Flow Data (cfs)
River Reach
San Marcos creek1
San Marcos creek1
Boundary Conditions
River
Downstream
Reach
San Marcos creek1
Normal S = 0.028
GEOMETRY DATA
RS
11
7
Profi 1 e
PF#l
Geometry Title: Existing Conditions
PF#l
13000 13000
upstream
Critical
Geometry File: C:\Documents and Settings\dedwards\Desktop\san Marcos creek
rev-2-24-03\SMC_Existing.g03
CROSS SECTION
RIVER: San Marcos creek
REACH: 1
INPUT
Description:
Station Elevation
Sta Elev
856 350 886.5 340
918.4 330
1000 324
1071. 5 328
1173 336
1210.5 346
Manning's n values
Sta n val
856 .1
Data
Sta 862 893.7
936.1
1013.7
1076.5
1179.8
Sta
899
Bank Sta: Left Right
899 1173
RS: 11
num= 31
Elev sta Elev
348 867.1 346
338 899 336
329 949.9 328
323.5 1030 324
329 1080.3 330
338 1187.3 340
num= 3 n val Sta n val
.1 1173 .1
Lengths: Left Channel
219 219
CROSS SECTION OUTPUT profile #PF#l page 2
sta
872.7
905.9
964.1 1052.9
1083.7
1195
Right
219
Elev Sta
344 880.2 334 913.7
327 975.3
326 1062.2
332 1087
342 1202.4
coeff Contr. .1
Elev
342
332
326 327 334
344
Expan.
.3
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SMCExisting.rep
E.G. Elev (ft) 338.86 Element Left DB channel
Right DB vel Head (ft) 0.46 Wt. n-Val. 0.100 0.100
0.100
W.S. Elev (ft) 338.41 Reach Len. (ft) 0.10 0.10
0.10
Crit W.S. (ft) 332.22 Flow Area (sq ft) 7.76 2392.65
9.88
E.G. slope (ft/ft) 0.007506 Area (sq ft) 7.76 2392.65 9.88
Q Total (cfs) 13000.00 Flow (cfs) 10.51 12975.61 13.88 TOp Width (ft) 289.09 TOP Width (ft) 6.77 274.00 8.33 vel Total (ft/s) 5.39 Avg. vel. (ft/s) 1. 35 5.42 1.40
Max chl Dpth (ft) 14.91 Hydr. Depth (ft) 1.15 8.73 1.19 Cony. Total (cfs) 150048.5 Cony. (cfs) 121.3 149767.0
160.2
Length wtd. (ft) 0.10 wetted Per. (ft) 7.19 276.74
8.67
Min ch El (ft) 323.50 shear (lb/sq ft) 0.51 4.05
0.53
Alpha
0.75
1.01 Stream Power (lb/ft s) 0.69 21. 97
Frctn Loss (ft) 0.00 Cum volume (acre-ft) 0.83 50.46 5.72
c & E. Loss (ft) 0.02 Cum SA (acres) 0.31 4.96 1. 51
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance)
is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
BRIDGE
RIVER: San Marcos creek
REACH: 1 RS: 10.5
INPUT
Description:
Distance from upstream XS = .1
Deck/Roadway Width = 200
weir coefficient 2.6
Upstream Deck/Roadway Coordinates
num= 2
Sta Hi cord Lo cord Sta Hi cord Lo cord o 355 350 1202.4 349 344
Upstream Bridge Cross section Data
station Elevation Data num=
Sta Elev Sta Elev
856 350 862 348
886.5 340 893.7 338
918.4 330 936.1 329
1000 324 1013.7 323.5
31
Sta
867.1
899
949.9
1030
page
Elev
346
336
328 324
3
Sta
872.7
905.9
964.1
1052.9
Elev
344
334
327
326
sta
880.2
913.7
975.3
1062.2
Elev
342
332 326
327
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SMC_Existing.rep
1071. 5
1173
1210.5
328 1076.5
336 1179.8
346
329 1080.3 330 1083.7
338 1187.3 340 1195
Manning's n values
Sta n val
856 .1
num=
Sta n val
899 .1
3
Sta
1173
Bank sta: Left Right
899 1173
coeff Cont r .
. 1
Downstream Deck/Roadway coordinates
num= 2
n val
.1
Expan .
.3
sta Hi cord Lo cord Sta Hi cord Lo cord o 355 350 1191.8 349 344
Downstream Bridge
Station Elevation
Cross section Data
Sta Elev
799.3 350
831. 5 340
862.5 330
951.9 323
1078.5 324
1169.3 338
Manning's n values
Data
Sta
806.4
837.6
885.5
971
1140.6
1177
Sta n val Sta
799.3 .1 862.5
Bank Sta: Left Right
862.5 1140.6
num=
Elev
348
338
330
322
330
340
29
Sta
812.5
843.9
899.3
1000
1147.6
1184.5
num= 3
n val Sta
.1 1140.6
coeff Cont r .
.1
Elev
346
336
329
321.5
332
342
n val
.1
Expan.
.3
sta 818.9
850.3
904
1033.1
1155.2
1191.8
332 1087
342 1202.4
Elev Sta 344 825.3
334 856.5
328 910.9
322 1064.7
334 1161. 7
344
Upstream Embankment side slope
Downstream Embankment side slope
Maximum allowable submergence for weir
Elevation at which weir flow begins
Energy head used in spillway design
spillway height used in design
= o horiz. to 1.0 vertical
weir crest shape
Number of Piers = 2
Pier Data
Pier station
upstream
width
15
Downstream
width
15
pi er Data
pier station
Upstream
Width
15
Downstream
Width
15
Upstream=
num= 2
Elev width
326 15
num= 2
961.7
Elev
350
Elev width Elev
327 15 350
Upstream= 1059.7
num= 2
Elev width Elev
323 15 350
num= 2
Elev width Elev
329 15 350
Number of Bridge coefficient Sets = 1
= flow =
=
=
=
o horiz. to 1.0 vertical .95
= Broad crested
Downstream= 957.4
Downstream= 1059.1
Page 4
334 344
Elev 342
332
327
323
336
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SMC_Existing.rep
Low Flow Methods and Data
Energy
selected Low Flow Methods =
High Flow Method Energy only
Highest Energy Answer
Additional Bridge Parameters
Add Friction component to Momentum
Do not add weight component to Momentum
class B flow critical depth computations use critical
inside the bridge at the upstream end criteria to check for pressure flow = upstream energy
depth
grade line
BRIDGE OUTPUT profile #PF#l
E.G. US. (ft) 338.86
Inside BR DS
W.S. US. (ft) 338.41
337.32
Q Total (cfs) 13000.00
337.03
Q Bridge (cfs) 13000.00
329.27
Q wei r (cfs)
15.53
weir Sta Lft (ft)
4.20
weir Sta Rgt (ft)
3097.14
weir submerg 0.22 weir Max Depth (ft)
20586.61
Min El weir Flow (ft) 349.01
10.50
Min El Prs (ft) 345.67
354.71 Delta EG'(ft) 1.62
202231. 7 Delta WS (ft) 1.39 294.99 BR open Area (sq ft) 3874.77 0.06 BR open vel (ft/s) 6.47
0.02
coef of Q
2.25
Br sel Method Energy only
9.45
Element Inside BR US
E.G. Elev (ft) 338.84
W.S. Elev (ft) 338.19
crit W.S. (ft) 332.98
Max chl Dpth (ft) 14.69
vel Total (ft/s) 6.47
Flow Area (sq ft) 2009.33
Froude # chl 0.40
specif Force (cu ft) 13292.96
Hydr Depth (ft) 7.80
W.P. Total (ft) 305.81
Conv. Total (cfs) 107030.2
Top width (ft) 257.47
Frctn Loss (ft) 1.41
C & E Loss (ft) 0.11
shear Total (lb/sq ft) 6.05
Power Total (lb/ft s) 39.15
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance)
is less than
0.7 or greater than 1.4. This may indicate the need for additional cross
sections.
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross section. This may indicate the need for additional cross sections.
CROSS SECTION
page 5
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RIVER: San Marcos creek
REACH: 1 RS: 10
INPUT
Description: Cross Section #10
station Elevation Data num=
Sta Elev sta Elev
799.3 350 806.4 348
831.5 340 837.6 338
862.5 330 885.5 330
951.9 323 971 322
1078.5 324 1140.6 330
1169.3 338 1177 340
SMC_Existing.rep
29
Sta
812.5
843.9
899.3
1000
1147.6
1184.5
Elev
346
336
329
321. 5
332 342
Sta
818.9
850.3
904
1033.1
1155.2
1191. 8
Manning's n values num= 3 sta n val Sta 799.3 .1 862.5
Bank Sta: Left Right
862.5 1140.6
n val Sta .1 1140.6 n val
.1
Lengths: Left Channel
198 120.5
Right
71.1
CROSS SECTION OUTPUT profile #PF#l
E.G. Elev (ft)
Right OB
vel Head (ft) 0.100 W.S. Elev (ft)
71.10 crit W.S. (ft) 87.80
E.G. Slope (ft/ft)
87.80
Q Total (cfs)
142.94
TOP Width (ft)
24.98
vel Total (ft/s)
1.63 Max chl Dpth (ft) 3.52 Conv. Total (cfs) 2940.7 Length Wtd. (ft)
25.95
Mi n ch El (ft)
0.50
Alpha
0.81
Frctn Loss (ft)
5.46 C & E Loss (ft) 1.42
337.24
0.22
337.02
0.002363
13000.00
324.89
3.69
15.52
267441. 5
120.07
321. 50
1.04
0.43
0.03
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Conv. (cfs)
wetted Pe r . (ft)
shear (lb/sq ft)
stream Power (lb/ft s)
Cum volume (acre-ft)
Cum SA (acres)
Elev Sta
344 825.3
334 856.5
328 910.9
322 1064.7
334 1161. 7
344
coeff Contr.
.1
Elev
342
332
327
323
336
Expan.
.3
Left OB Channel
0.100 0.100
198.00 120.50
75.62 3357.09
75.62 3357.09
121.05 12736.01
21.81 278.10
1. 60 3.79
3.47 12.07
2490.3 262010.6
22.92 278.88
0.49 1. 78
0.78 6.74
0.60 37.78
0.23 3.72
Warning: The conveyance ratio (upstream conveyance divided by downstream conveyance)
is less than
0.7 or greater than 1.4. This may indicate the need for additional cross
sections.
page 6
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CROSS SECTION
RIVER: San Marcos creek REACH: 1 RS: 9
INPUT
Description: Cross section #9
Station Elevation Data num=
Sta Elev Sta Elev 798.7 370 845.7 360
984.7 322 995.5 321
1039.9 323 1119 330
1222 338 1266.2 340
Manning's n values num=
sta n Val Sta n val
798.7 .1 935.5 .1
Bank Sta: Left Right Lengths:
935.5 1119
SMC_Existing.rep
17
Sta
875.6
1000
1135.3
3
Sta
1119
Elev Sta
350 911
320.5 1022.2
332 1155.7
n val
.1
Left Channel Right
75 81.4 35
CROSS SECTION OUTPUT Profile #PF#l
E.G. Elev (ft) Right OB
vel Head (ft)
0.100
W.S. Elev (ft)
35.00 crit W.S. (ft) 216.79 E.G. slope (ft/ft)
216.79
Q Total (cfs)
453.84 TOp Width (ft) 90.00
vel Total (ft/s) 2.09 Max chl Dpth (ft) 2.41
Cony. Total (cfs)
5776.8
Length wtd. (ft)
90.27
Min ch El (ft)
0.93
Alpha
1.94 Frctn Loss (ft)
5.21 C & E Loss (ft)
1. 33
CROSS SECTION
RIVER: San Marcos creek
336.78
0.52
336.25
0.006172
13000.00
288.82
5.49
15.75
165472.9
79.39
320.50
1.12
0.46
0.04
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Conv. (cfs)
wetted per. (ft)
shear (lb/sq ft)
Stream power (lb/ft s)
Cum volume (acre-ft)
Cum SA (acres)
page 7
Elev Sta
340 935.5
321 1032.8
334 1207.1
coeff Contr.
.1
Elev
330
322
336
Expan.
.3
Left OB Channel
0.100 0.100
75.00 81.40
47.93 2103.54
47.93 2103.54
113.66 12432.50
15.32 183.50
2.37 5.91
3.13 11.46
1446.7 158249.4
16.55 184.65
1.12 4.39
2.65 25.94
0.32 30.22
0.15 3.08
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I SMC_Existing.rep
REACH: 1 RS: 8
I INPUT
Description: Cross section #8
Station Elevation Data num= 52
I Sta Elev Sta Elev sta Elev Sta Elev Sta Elev
785.4 370 838.2 360 868 350 891.2 340 926.6 330
992.3 321 1000 320.4 1010.8 321 1061.9 326 1159 330
1180.3 331 1187.9 332 1201 333 1221. 8 334 1224.7 335
I 1228.6 336 1234.9 337 1242.3 338 1248.2 339 1267.9 340
1274.7 339 1280.6 338 1286.7 337 1293.4 336 1297.8 335
1301. 9 334 1320.1 333 1356.6 332 1380.4 331 1385.9 330
1391.1 329 1431. 5 329 1435.3 330 1441.3 331 1447.5 332
1451. 3 333 1460.2 334 1464 335 1484.9 336 1486.2 337 I 1488.9 337 1490.1 336 1491.9 335 1493.5 334 1509.8 333 1519.5 334 1522 335 1524 336 1526.6 337 1530.8 338
1540.8 339 1544.3 340
I Manning's n values num= 3
Sta n val Sta n val Sta n val
785.4 .1 926.6 .1 1159 .1
I Bank Sta: Left Right Lengths: Left channel Right coeff Contr. Expan.
926.6 1159 111.43 120.3 120 .1 .3
Ineffective Flow num= 1
sta L Sta R Elev permanent
I 1269.7 1544.3 F
CROSS SECTION OUTPUT Profile #PF#l
I E.G. Elev (ft) 336.27 Element Left OB Channel
Right OB vel Head (ft) 0.40 Wt. n-val. 0.100 0.100
I 0.100
w.s. Elev (ft) 335.88 Reach Len. (ft) 111. 43 120.30
120.00
crit W. s. (ft) Flow Area (sq ft) 61.13 2359.80
I 246.95
E.G. slope (ft/ft) 0.005562 Area (sq ft) 61.13 2359.80
1065.28
Q Total (cfs) 13000.00 Flow (cfs) 135.45 12227.63
I 636.91
TOp Width (ft) 544.13 Top Width (ft) 20.80 232.40
290.93
vel Total (ft/s) 4.87 Avg. vel. (ft/s) 2.22 5.18
I 2.58
Max chl Dpth (ft) 15.48 Hydr. Depth (ft) 2.94 10.15
3.57
Cony. Total (cfs) 174319.1 Cony. (cfs) 1816.3 163962.3
I 8540.5 Length Wtd. (ft) 120.20 Wetted Per. (ft) 21.62 233.38
69.55
Min ch El (ft) 320.40 Shear (lb/sq ft) 0.98 3.51
I 1. 23
Alpha 1.08 Stream Power (lb/ft s) 2.18 18.19
3.18
Frctn Loss (ft) 0.75 Cum volume (acre-ft) 0.23 26.05
I 4.70
C & E LOSS (ft) 0.00 Cum SA (acres) 0.12 2.69
1.17
I page 8
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SMC_Existing.rep
warning: Divided flow computed for this cross-section.
CROSS SECTION
RIVER: san Marcos creek
REACH: 1 RS: 7
INPUT
Description: Cross-section #7
Station Elevation Data num= 43
Sta Elev Sta Elev Sta Elev Sta
690.83 380 700.99 379 708.72 378 715.2
373 759.89
360 834.47
335 912.77
734.77 375 746.46 374 751.91
786.63 370 810.33 365 825.61
860.33 345 877.96 340 896.84
976.57 321 991.2 320 1000 319.72 1008.84
328 1123.73
333 1283.74
338 1343.06
340
1040.6 326 1084.17 327 1117.93
1157.38 331 1181.4 332 1251.87
1329.86 337 1334.26 338 1338.83
1357.9 338 1360.31 339 1362.92
Manning's n values
Sta n val Sta
690.83 .1 896.84
Bank Sta: Left Right
896.84 1040.6
num= 3
n val Sta
.1 1040.6
n val
.1
Lengths: Left Channel Right
73.52 100.15 106.36
CROSS SECTION OUTPUT Profile #PF#l
E.G. Elev (ft)
Right OB
vel Head (ft)
0.100
W.s. Elev (ft)
106.36
Crit W.s. (ft)
1134.30
E.G. slope (ft/ft)
1134.30
Q Total (cfs)
3906.10
Top Width (ft)
246.56
vel Total (ft/s)
3.44
Max chl Dpth (ft)
4.60
Conv. Total (cfs)
46587.4
Length Wtd. Cft)
246.84
Mi n ch El (ft)
2.02
Alpha
6.95
Frctn LOSS (ft)
1.67
C & E LOSS (ft)
0.43
335.52
0.44
335.08
0.007030
13000.00
390.63
4.89
15.36
155049.0
101.05
319.72
1.19
0.81
0.02
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Conv. (cfs)
Wetted per. (ft)
shear (lb/sq ft)
Stream Power (lb/ft s)
Cum Volume (acre-ft)
Cum SA (acres)
page 9
Elev sta
377 725.82
372 774.04
355 844.96
330 940.14
320 1026-.08
329 1133.52
335 1326.22 337 1346.97
coeff Cont r .
.1
Left OB
0.100
73.52
0.01
0.01
0.00
0.30
0.14
0.04
0.0
0.31
0.02
0.00
0.15
0.09
Elev
3.76
371
350
325
325 330
336 337
Expan.
.3
Channel
0.100
100.15
1526.49
1526.49
9093.90
143.76
5.96
10.62
108461.6
145.99
4.59
27.34
20.69
2.17
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SMC_Existing.rep
CROSS SECTION
RIVER: San Marcos Creek
REACH: 1 RS: 6
INPUT
Description: Cross-section #6
Station Elevation Data num= 46
Sta Elev Sta Elev Sta
494.93 400 575.47 390 646.09 717.87 372 729.09 371 743.03
821.87 355 835.98 350 851.78
908.58 330 946.47 325 978.84 1008.06 319 1017.19 320 1033.51
1089.48 327 1099.19 327 1104.43
1136.33 331 1148.98 332 1155.99
1173.87 336 1217.5 336 1240.48
1258.48 337 1259.35 337 1283.41
1295 340
Manning's n values
Sta n val Sta
num= 3
n val Sta
494.93 .1 908.58 .1 1123.14
Elev Sta
380 691. 53
370 782.6
345 869.91
320 998.26
325 1050.43
328 1109.3
333 1161.47
336 1243.21
337 1289.96
n val
.1
Bank Sta: Left Right
908.58 1123.14
Lengths: Left channel Right
84.54 84.95 104.32 I' CROSS SECTION OUTPUT Profi 1 e #PF#l
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E.G. Elev (ft)
Right OB
vel Head (ft)
0.100
W.S. Elev (ft)
104.32
crit W.S. (ft)
94.28 E.G. slope (ft/ft)
94.28
Q Total (cfs)
243.76 Top Width (ft)
38.68
vel Total (ft/s)
2.59
Max chl Dpth (ft)
2.44
Cony. Total (cfs)
2526.5
Length Wtd. (ft)
38.93
Mi n ch El (ft)
1.41
Alpha
3.64
Frctn Loss (ft) 0.17
C & E Loss (ft)
334.69
0.61
334.08
0.009309
13000.00
271. 72
6.09
15.48
134739.2
85.15
318.60
1.06
0.87
0.01
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
Top Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Cony. (cfs)
Wetted per. (ft)
shear (lb/sq ft)
Stream Power (lb/ft s)
Cum volume (acre-ft)
Cum SA (acres)
Page 10
Elev Sta
374 703.41
365 805.03
340 885.95
319 1000
326 1068.05
329 1123.14
334 1165.61
336 1248.98
338 1292.73
coeff Cant r .
.1
Left OB ,
0.100
84.54
37.74
37.74
85.72
18.48
2.27
2.04
888.5
18.93
1.16
2.63
0.12
0.07
Elev
373
360
335
318.6
327
330
335
336
339
Expan.
.3
Channel
0.100
84.95
2004.24
2004.24
12670.52
214.56
6.32
9.34
131324.3
216.45
5.38
34.02
16.63
1. 76
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SMC_Existing.rep
0.09
CROSS SECTION
RIVER: San Marcos creek REACH: 1 RS: 5
INPUT
Description: Cross-Section #5
Station Elevation Data num= 40
Sta Elev Sta Elev Sta
556.43 400 621.34 390 661.36
712.94 365 731.07 360 764.68
834.73 340 854.24 335 873.72 994.55 319 1000 318.33 1010.91
1042.53 326 1049.61 327 1065.12
1077.18 329 1081.03 330 1097.16 1153.06 350 1164.99 351 1175.25
1247.54 350 1259.68 349 1274.6
Manning's n values
Sta n val Sta
num= 3
n val Sta
556.43 .1 873.72 .1 1081. 03
Elev Sta
380 678.15
355 791. 66
330 913.94 319 1018.9 327 1073.66
335 1111.87 352 1209.45
348 1305.63
n Val
.1
Bank Sta: Left Right Lengths: Left Channel Right
873.72 1081.03 106.38 83.7 84.95
CROSS SECTION OUTPUT profile #PF#l
E.G. Elev (ft) 333.81 Element
Right OB
vel Head (ft) 0.72 Wt. n-val.
0.100 W.S. Elev (ft) 333.10 Reach Len. (ft)
84.95
crit W.S. (ft) Flow Area (sq ft)
15.46
E.G. slope (ft/ft) 0.011158 Area (sq ft)
15.46
Q Total (cfs) 13000.00 ,Flow (cfs)
31. 50
TOp width (ft) 229.36 TOp Width (ft)
9.99
vel Total (ft/s) 6.73 Avg. vel. (ft/s) 2.04 Max chl Dpth (ft) 14.77 Hydr. Depth (ft)
1. 55
Conv. Total (cfs) 123071.4 Conv. (cfs)
298.2
Length Wtd. (ft) 83.74 Wetted per. (ft)
10.46
Min ch El
1.03
(ft) 318.33 Shear (lb/sq ft)
Elev Sta
375 695.92
350 819.29 325 989.76 320 1036.74
327 1075.63
340 1129.67
352 1225.19
347.21 1332.66
Elev
370
345
320
325
328
345 351
354.3
coeff Contr. Expan.
.1 .3
Left OB channel
0.100 0.100
106.38 83.70
18.67 1896.62
18.67 1896.62
38.39 12930.11
12.06 207.31
2.06 6.82
1. 55 9.15
363.5 122409.8
12.45 209.52
1.04 6.31
Alpha 1.02 Stream Power (lb/ft s) 2.15 42.99 2.10
Frctn Loss (ft) 1.04 Cum volume (acre-ft) 0.06 12.83 0.04
C & E Loss (ft) 0.01 Cum SA (acres) 0.04 1.35 0.03
Page 11
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SMC_Ex;st;ng.rep
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: San Marcos creek REACH: 1 RS: 4
INPUT
Description: cross-Section #4 station Elevation Data num= 41
Sta E1ev Sta E1ev Sta
678.28 400 716.25 390 735.55
782.31 370 801.95 365 816.66
859.68 345 874.58 340 895.96
972.9 320 983.33 319 994.86
1011.51 319 1033.43 320 1047.25
1070.6 326 1075.28 329 1098.95
1129.34 340 1144.92 345 1160.54 1227.4 362 1263.88 362 1282.93
1358.23 355.7
Manning's n values
Sta n val sta
num= 3
n val Sta
678.28 .1 908.77 .1 1108.25
E1ev Sta
385 753.13
360 831. 54
335 908.77
318 1000
320 1060.67 329 1108.25 350 1182.45
360 1322.33
n val
.1
Bank Sta: Left Right
908.77 1108.25
Lengths: Left Channel
77.73 90.76
Right
77 .43
CROSS SECTION OUTPUT profile #PF#l
E.G. E1ev (ft) 332.77 'Element
Right OB Vel Head (ft) 0.84 Wt. n-va1. 0.100
w.s. E1ev (ft) 331. 92 Reach Len. (ft) 77.43
Crit W.S. (ft) Flow Area (sq ft)
4.25
E.G. slope (ft/ft) 0.013805 Area (sq ft)
4.25
Q Total (cfs) 13000.00 Flow (cfs)
6.82 TOp width (ft) 208.82 TOP width (ft) 4.42 vel Total (ft/s) 7.34 Avg. vel. (ft/s)
1.61
Max ch1 Dpth (ft) 14.48 Hydr. Depth (ft)
0.96
Cony. Total (cfs) 110643.1 Cony. (cfs)
58.0
Length Wtd. (ft) 90.75 wetted per. (ft) 4.82
Min ch E1 (ft) 317.44 shear (lb/sq ft)
0.76
E1ev Sta
380 767.74
355 843.82
330 940.33
317.44 1005.14
320 1069.44
330 1119.74
355 1209.64
356 1348.43
coeff Contr.
.1
Left OB
0.100
77.73
4.74
4.74
7.68
4.93
1.62
0.96
65.4
5.29
0.77
Alpha 1.01 stream power (lb/ft s) 1.25 1.22
Page 12
E1ev
375
350
325
318
325
335
360
355
Expan.
.3
channel
0.100
90.76
1761. 91
1761. 91
12985.50
199.48
7.37
8.83
110519.7
203.14
7.48
55.09
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Frctn LoSS (ft)
0.02
C & E Loss (ft) 0.01
SMC_Existing.rep
1.23 Cum volume (acre-ft)
0.01 Cum SA (acres)
0.04
0.02
9.31
0.96
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: San Marcos creek REACH: 1 RS: 3
INPUT
Description: Cross-section #3
station Elevation Data
Sta Elev Sta
756.56 400 782
834.12 37.5 845.86
891. 99 350 899.97
949.34 325 968.54
998.51 316 1000
1038.01 319 1054.64
1081.19 320 1090.94
1136.48 335 1151. 92
1244.92 366 1265.74
1322.77 366 1330.54 1400.02 358 1406.82
Manning's n values
Sta n val Sta
756.56 .1 929.59
Bank Sta: Left Right
929.59 1096.42
num= 55 Elev Sta
395 797.74 370 861. 01
345 908.29
320 981.81
315.9 1001. 49
320 1063.98
325 1096.42
340 1184.21
367 1287.71
365 1337.32 357 1410.77
num= 3
n val Sta
.1 1096.42
Elev Sta
390 809.19
365 871.59
340 917.99
319 988.18
316 1013.47
320 1074.56
330 1104.95
350 1216.77 368 1290.89
364 1382.59 357 1425.17
n val
.1
Lengths: Left Channel Right
62.17 102.86 114.21
CROSS SECTION OUTPUT Profile #PF#l
E.G. Elev (ft)
Right OB
vel Head (ft)
0.100
w.s. Elev (ft)
114.21
Crit W.S. (ft)
0.37 E.G. slope (ft/ft)
0.37
Q Total (cfs)
0.26
Top Width (ft)
1.26
vel Total (ft/s)
0.71
Max chl Dpth (ft)
0.29
Cony. Total (cfs)
2.3
331. 53
0.94
330.59
0.013230
13000.00
169.45
7.78
14.69
113020.2
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp Width (ft)
Avg. Vel. (ft/s)
Hydr. Depth (ft)
Cony. (cfs)
page 13
Elev Sta Elev
385 820.36 380
360 882.06 355
335 929.59 330
318 991.86 317
317 1021. 52 318
319 1076.35 319
334 1124.08 334
360 1236.15 365
368 1309.25 367
360 1389.89 359
357 1433.14 358.6
coeff Contr. Expan.
'.1 .3
Left OB Channel
0.100 0.100
62.17 102.86
0.40 1670.24
0.40 1670.24
0.29 12999.45
1. 37 166.83
0.71 7.78
0.29 10.01
2.5 113015.4
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SMC_Existing.rep
Length wtd. (ft) 102.86 wetted per. (ft) 1.49 171.88
1. 39
Min ch E1 (ft) 315.90 shear (lb/sq ft) 0.22 8.03 0.22
Alpha 1.00 Stream Power (lb/ft s) 0.16 62.47
0.16
Frctn Loss (ft) 1.72 Cum volume (acre-ft) 0.03 5.73
0.01
C & E Loss (ft) 0.05 Cum SA (acres) 0.02 0.58 0.01
warning: The velocity head has changed by more than 0.5 ft (0.15 m). This may
indicate the need for
additional cross sections.
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: San Marcos creek
REACH: 1 RS: 2
INPUT
Description: Cross-Section #2
station Elevation Data num= 44
Sta E1ev Sta E1ev Sta
817.95 390 835.8 385 848.86
886.76 365 897.43 360 907.12
937.72 340 945.29 335 955.45
992.43 316 995.62 315 1000
1022.62 317 1040.86 317 1070.99
1095.8 330 1112.35 330 1124.85
1145.49 330 1163.01 335 1179.36
1223 355 1240.82 360 1256.16
1427.66 360 1472.02 358 1477.48
Manning's n Values
Sta n val Sta num= 3 n val Sta 817.95 .1 955.45 .1 1095.8
Elev Sta
380 861.86
355 915.7
330 964.03
314.34 1004.39
317 1079.24
329 1132.22
340 1191. 6
365 1318.92 357.6 1501. 06
n val .1
Bank Sta: Left Right
955.45 1095.8
Lengths: Left Channel Right 181.76 92.2 63.34
CROSS SECTION OUTPUT profile #PF#l
E.G. E1ev (ft) Right OB
vel Head (ft)
w.s. E1ev (ft)
63.34
crit W.S. (ft)
E.G. slope (ft/ft)
Q Total (cfs)
TOp Width (ft)
329.76
1.48
328.27
0.021693
13000.00
135.19
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp width (ft)
page 14
E1ev Sta 375 874.73
350 925.43
325 974.02
315 1011. 84
320 1089.41
328.33 1142.44
345 1208
369.8 1372.13
358.6
coeff Contr.
.1
E1ev 370
345
320
316
325
329
350
365
Expan. .3
Left OB Channel
0.100
181.76 92.20
1329.82
1329.82
13000.00
135.19
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SMC_Existing.rep
vel Total (ft/s) 9.78 Avg. vel. (ft/s) 9.78
Max chl Dpth (ft) 13.93 Hydr. Depth (ft) 9.84
Cony. Total (cfs) 88263.4 Cony. (cfs) 88263.4
Length wtd. (ft) 92.38 Wetted Per. (ft) 140.87
Min ch El (ft) 314.34 shear (lb/sq ft) 12.79
Alpha 1.00 Stream Power (lb/ft s) 124.98
Frctn Loss (ft) 1.16 Cum Volume (acre-ft) 0.03 2.19
0.01 C & E Loss (ft) 0.31 Cum SA (acres) 0.02 0.22 0.01
warning: The velocity head has changed by more than 0.5 ft (0.15 m). This may indicate the need for
additional cross sections.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance)
is less than
0.7 or greater than 1.4. This may indicate the need for additional cross sections.
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: san Marcos Creek
REACH: 1 RS: 1
INPUT
Description: cross-section #1 D/S
station Elevation
(Dr. chang's Cross section #6.047)
Data
Sta Elev Sta
879.61 353.9 893.38
948.88 330 957.68
985.29 313 989.11
1030.85 314 1034.87
1060.24 327 1131. 57
1170.78 345 1186.7
1269.54 369 1349.66
Manning's n values Sta n val Sta
879.61 .035 968.62
Bank Sta: Left Right
968.62 1042.44
num= 35
Elev Sta
350 911. 57
325 968.62
312 1000
315 1042.44
327 1135.93 350 1204.59
365 1408.31
num= 3 n val Sta .035 1042.44
Elev Sta
345 924.79
320 974.88
311. 76 1010.89
320 1054.34
330 1140.53
355 1223.18 360 1458.18
n val
.035
Lengths: Left Channel Right o o 0
CROSS SECTION OUTPUT Profile #PF#l
E.G. Elev (ft)
Right OB vel Head (ft)
0.035
328.29
4.58
Element
Wt. n-val.
page 15
Elev Sta
340 937.35
315 980.16
312 1025.07
325 1056.34
335 1150.46
360 1239.57 357.21 1480.39
coeff Contr.
.1
Left OB
0.035
Elev
335
314 313
326
340
365
358.65
Expan.
.3
Channel
0.035
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W.S. Elev (ft)
SMC_Existing.rep
323.71 Reach Len. (ft)
crit w.S. (ft) 323.71 Flow Area (sq ft) 15.05 742.26
16.37 E.G. slope (ft/ft) 0.008168 Area (sq ft) 15.05 742.26
16.37
Q Total (cfs) 13000.00 Flow (cfs) 81.80 12828.42
89.78 Top width (ft) 90.76
8.83
Top Width (ft) 8.11 73.82
vel Total (ft/s) 16.80
5.49
Avg. vel. (ft/s) 5.44 17.28
Max chl Dpth (ft) 11.95 Hydr. Depth (ft) 1.85 10.06
1.85
conv. Total (cfs) 143845.6 Conv. (cfs) 905.1 141947.0
993.5 Length wtd. (ft) Wetted per. (ft) 8.92 77 .64
9.57
Min ch El (ft) 311. 76 shear (lb/sq ft) 0.86 4.87 0.87 Alpha 1.05 Stream Power (lb/ft s) 4.67 84.25
4.78
Frctn Loss (ft) Cum volume (acre-ft)
C & E Loss (ft) Cum SA (acres)
warning: slope too steep for slope area to converge during supercritical flow calculations (normal depth is below critical depth). water surface set to critical depth.
SUMMARY OF MANNING'S N VALUES
River:san Marcos creek
Reach River Sta. n1 n2 n3
1 11 .1 .1 .1
1 10.5 Bridge 1 10 .1 .1 .1 1 9 .1 .1 .1
1 8 .1 .1 .1 1 7 .1 .1 .1
1 6 .1 .1 .1
1 5 .1 .1 .1 1 4 .1 .1 .1
1 3 .1 .1 .1
1 2 .1 .1 .1
1 1 .035 .035 .035
SUMMARY OF REACH LENGTHS
River: San Marcos creek
Reach River Sta. Left Channel Right
Page 16
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SMC_Existing.rep
1 11 219 219 219
1 10.5 Bridge
1 10 198 120.5 71.1
1 9 75 81.4 35
1 8 111.43 120.3 120
1 7 73.52 100.15 106.36
1 6 84.54 84.95 104.32
1 5 106.38 83.7 84.95
1 4 77.73 90.76 77 .43
1 3 62.17 102.86 114.21
1 2 181. 76 92.2 63.34
1 1 0 0 0
SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS
River: San Marcos creek
Reach River Sta. Contr. Expan.
1 11 .1 .3
1 10.5 Bridge
1 10 .1 .3
1 9 .1 .3
1 8 .1 .3
1 7 .1 .3
1 6 .1 .3
1 5 .1 .3
1 4 .1 .3
1 3 .1 .3
1 2 .1 .3
1 1 .1 .3
profile output Table -standard Table 1
Reach River sta profile Q Total Mi n ch El w.s. Elev crit W.S.
E.G. Elev E.G. slope vel chnl Flow Area TOP width Froude # chl
(cfs) (ft) (ft) (ft)
(ft) (ft/ft) (ft/s) (sq ft) (ft)
1 11 PF#l 13000.00 323.50 338.41 332.22
338.86 0.007506 5.42 2410.28 289.09 0.32
1 10.5 Bri dge
1 10 PF#l 13000.00 321. 50 337.02
337.24 0.002363 3.79 3520.51 324.89 0.19
1 9 PF#l 13000.00 320.50 336.25
336.78 0.006172 5.91 2368.25 288.82 0.31
1 8 PF#l 13000.00 320.40 335.88
336.27 0.005562 5.18 2667.88 544.13 0.29
1 7 PF#l 13000.00 3l9.72 335.08
335.52 0.007030 5.96 2660.80 390.63 0.32
1 6 PF#l 13000.00 318.60 334.08
334.69 0.009309 6.32 2136.27 271. 72 0.36
1 5 PF#l 13000.00 318.33 333.10
333.81 0.011158 6.82 1930.75 229.36 0.40
1 4 PF#l 13000.00 317.44 331. 92
332.77 0.013805 7.37 1770.89 208.82 0.44
page 17
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331. 53 0.013230
2
329.76 0.021693
1
328.29 0.008168
SMC_Existing.rep
PF#l 13000.00
7.78 1671.01
PF#l 13000.00
9.78 1329.82
PF#l 13000.00
17.28 773.68
page 18
315.90 330.59
169.45 0.43
314.34 328.27
135.19 0.55
311.76 323.71 323.71
90.76 0.96
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 4
DEVELOPED CONDITIONS
HEC-RAS RESULTS
DE:de h:lreportsI175111361clomrlclom,-01.doc
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 4.1
DEVELOPED SUMMARY TABLE
DE:de h:lreportsI17511136Ic1omrlclom,-01.doc
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- - -- ----- ---- - - - - -
HEC-RAS Plan: Dev-Normal River: San Marcos Creek Reach: 1 Profile: PF#1
~0;t~~~~ht:;3 ~ tg[;e~;~~:t=-~,:;;.~'p~afi!~~~? '{(Q~T,bfa):;:Z ;',(Mi~~Qt1;1;f;;; ~:~!\&'i$:;::~!~~~3 ;/9~1~W!;J3~=,; ~,~~§S~i~T pc~%:~sl§pi:a;: ,:~y~(rQJ!Q(~;K:i C:E!t:i~:,6;~4~;t:: ~{J:<t)~w,iBih~,~' ::~Ei:b~~~i~¥g;t:
;~i~{:?!;;iJ~~,i~:; ;A~,~X'~ ;':'r?11;:;~~;>'.':;';~~:~,: ';'~:f,,(~f~F,:,r',~; /;:::':'(mi~~,'!;::; :Y:~ ~f!){;c:':'; ,~~:t{i(ft)' " '~,; :,~':~~;~@'.I,~L': i.-; ~ :'tttlnk:' :~'i f~'~~,rfU~)~7<i;: ;z; H~MtJij{~~, :~;'::"'~:1(f1:V':~;:', ~ ,;'~: ~ ;:,;:; ,~:, ~:,', ",
~{~ ~;b:~:;t:E~ ;1;1:;,,;~':::'{;e-; 'F,(ft#.~;':':':-',::) 13000,00 323,50 338.41 332,22 338,87 0,007496 5.42 2411.34 289.12 0,32
':f,~~ ,:i.;{'i'J ~j'Q~5;:;~,:"c::; ':) ~"::'; ': :':'~ , ' Bridge
.1::'~';:':~;:.~'~:~:1~6:~::,~",~~,;;':P.E#i::';';:;-:: 13000.00 321,50 337.03 337.25 0.002359 3.79 3522.49 324,93 0.19
'F: ~~":,~~:~;~ ,iF, ':;,::: ><: :,PFtt1:' , ' 13000.00 320.50 336.26 336.78 0.006156 5.91 2370.47 288.90 0.31
1:>" ::~::;~~:,1,~>',:<:,,~:,"',RF#1 ",":,' 13000.00 320.40 335.89 336.28 0.005544 5.18 2670.78 544.46 0.29
1;:~ ,1 '-,":~f,'::'<, ;'l~:i_';', " PF#1 ',' 13000.00 319,72 335.08 335.53 0.007115 5.99 2661.59 398.53 0.32
1':: \;;,,': ;~·r:::-' ,,:', PF#1 13000.00 318.60 334.08 334.69 0,009309 6.32 2136.27 271.72 0.36
1: ,C ':::F<~""r',' " PF#1 ,,,,,' 13000.00 318.33 333.10 333.81 0,011158 6.82 1930.75 229.36 0.40
1, .';:;;;~~: :4:7:"".' ,i', PF#1 ',:" 13000.00 317.44 331.92 332.77 0.013805 7.37 1770.89 208.82 0.44
'1:, ';;,' "d';} '3!:,; .. ,:,,~:, PF#1 ." 13000.00 315.90 330.59 331.53 0,013230 7.78 1671.01 169.45 0.43
f, <, ',:: :' 2)"',' , PF#1, ," ::\ 13000.00 314.34 328.27 329.76 0.021693 9.78 1329.82 135.19 0,55
1:' ,,';:'::', 1~:' ':.' ;,' ·.'RF#1 13000.00 311.76 323.71 323.71 328.29 0.008168 17.28 773.68 90.76 0.96
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 4.1.1
CHANNEL CROSS SECTIONS
DE:de h:lrepoJ1s1175111361c1omrlclom,_01.doc
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--
g
c 0 ~ > OJ ill
g
c .2 10 > OJ ill
-- -- - ---
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 11
350
.1 )i( .1 )i( .11
345
340
335
-" +.
330
325
320 I I I I I I I I I
850 900 950 1000 1050 1100 1150 1200 1250
Station (ft)
Legend
WS PF#1
.+.
Crit PF#1
Ground • Bank Sta
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 10.5 BR r-.1 + .1 )~.14 355 Legend
350--1 it:,::;;'_:c.~:,.,::i{ -: :'.,-. ' WS PF#1
-... + ~.
Crit PF#1
345 '-. ~ • Ground
-h • 340 ' .. Bank Sta
".-
~, 335 ~
"' "
330 " .~-~ .;
Po: l,'
325--1 " 1-: ;~l
320 I i i I i i I i i I i i I i i I
700 800 900 1000 1100 1200
Station (ft)
g
c 0 ~ > OJ ill
g
c 0 "" ro > OJ ill
---- ---
San Marcos Creek-Developed Plan: Dev-Normal-Depth
River = San Marcos Creek Reach = 1 RS = 10.5
L.1 + .1 +.11 355-1
350
3/5/2007
BR
Legend
WS PF#1
-
---+--.
345
\i ~l .,')
'.'
335
,,, , '~~I' """"""+"
I,:
330
325
320 I I I I I I I I I
850 900 950 1000 1050 1100 1150 1200 1250
Station (ft)
Crit PF#1
Ground
1# Bank Sta
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 10 Cross Section #10
350
345
340
335
330
325
320
700 800
.1 )i( .1 )i( .11
900 1000 1100
Station (ft)
Legend
WS PF#1
1200
Ground • Bank Sta
-
--
g
c: 0 "" ro > Q)
ill
g
c: 0 ~ > ~ w
---- --- - --- -- - --
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 9 Cross section #9
370 .1-+-.1 + .1--1
360
350
340
330
320 Ii' "Fi'"
700 800 900 1000
Station (ft)
1100 1200 1300
Legend
WS PF#1
Ground • Bank Sta
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 7 Cross-Section #7
380 +-.1-+ .1 )1
370
360
350
340
330
320
310 I I I I I I I I I
600 700 800 900 1000 1100 1200 1300 1400
Station (ft)
Legend
WS PF#1
Ground • Bank Sta
g
c: o ~ Q)
ill
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 8 Cross section #8
.1-+-.1~.1 )1
600 800 1000 1200 1400
Station (ft)
1600
Legend
WS PF#1
Ground ...
Ineff • Bank Sta
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 6 Cross-Section #6
I" .1 )1<------.1 )1" .1 --I
400 Legend
WS PF#1
380
g 360
Ground • Bank Sta
c: o ~ ~ 340 w
320
300+I-.o-r.-ro-r.-..-r.-r.-,,-..-.. -..-,,-.
400 600 800 1000 1200 1400
Station (ft)
-
- -
g
c 0 ~ > (I) iIi
g
c 0 "" co > (I) iIi
---- - ------- - -- -
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 5 Cross-Section #5
400
380
360
340
320
300
400
~.1----+-.1 + .1----1
600 800 1000 1200
Station (ft)
1400
Legend
WS PF#1
Ground • Bank Sta
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 3 Cross-Section #3
400 .1 + .1--+--.1 )1
380
360
340
320
300 I I I I I I I I I
700 800 900 1000 1100 1200 1300 1400 1500
Station (ft)
Legend
WS PF#1
Ground • Bank Sta
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 4 Cross-Section #4
J--..-.1 )1< .1---4 .1
400 Legend
WS PF#1
380
g 360
Ground • Bank Sta
c o ~ ill 340
g
c o
1 iIi
320
300 I I I I I I I I I
600 700 800 900 1000 1100 1200 1300 1400
Station (ft)
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
River = San Marcos Creek Reach = 1 RS = 2 Cross-Section #2
L.1-----.L.1 )1< .1 ,,1
400-1 ~
380
300 I I I I I I I I I
800 900 1000 1100 1200 1300 1400 1500 1600
Station (ft)
Legend
WS PF#1
Ground • Bank Sta
-
--
g
c o ~ (])
[ij
- ----- --
San Marcos Creek-Developed Plan: Dev-Normal-Depth 3/5/2007
RIver = San Mareos Creek Reach = 1 RS = 1 Cross·Section #1 DIS (Dr. Chang's Cross Section #6.047)
370
~ .035 +.035+ .035 )1
360
350
340
330
320
310 I I I I I I
800 900 1000 1100 1200 1300 1400 1500
Station (ft)
Legend
WS PF#1
+. '-
Crit PF#1
Ground • Bank Sta
--- ---- --
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 4.1.2
CHANNEL PROFILE
DE:de h:lreportsI175111361clomrldom,-01.doc
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San Marcos Creek-Developed Pf~n: Dev-Normal-Depth 3/5/2007
I< San Marcos Creek 1 l )1
g
c o l ill
350
340
330
320
o
1 in Horiz. '= 100 ft 1 in Vert. = 5 ft
..... -."'"'" ~.,~
~ .... ", ..... '
........................... ~
200 400 600 800 1000
Main Channel Distance (ft)
Legend
WS PF#1
............ + .... _ ......
Crit PF#1
Ground
1200
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 4.1.3
DEVELOPED CONDITION
HEC-RAS REPORT
DE:de h:lreportsI175111361c!omi\dom,_01.dOC
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.'SMc_Developed.rep
HEC-RASVersion 3.1.3 May 2005 u.s. Army corp of Engineers Hydrologic Engineering Center
609.second Street Davis, california
x X ~ XXXX XXXX XX
X X X X X
X X X X
XXXXXXX XXXX X XXX
X X X X
X X X X X
X X ~ XXXX
PROJECT DATA
project Title: San Marcos creek-Developed
project File: SMC_Developed.prj
Run Date and Time: 3/5/2007 5:04:04 PM
project in English units
project Description:
San Marcos creek Floodplain Analysis
PLAN DATA
plan Title: Dev-Normal-Depth
X X X X
X X X X
XXXX ~
X X X X
X X X X
X X X X
XXXX
X
X
XXXX
X
X
XXXXX
plan File: C:\Documents and settings\dedwards\Desktop\san Marcos creek
rev-2-24-03\sMC_Developed.p04
Geometry Title: Developed conditions
Geometry File: C:\Documents and settings\dedwards\Desktop\san Marcos creek rev-2-24-03\sMC_Developed.g03
Flow Title : Dev-Normal Depth Flow File : C:\Documents and settings\dedwards\Desktop\san Marcos creek rev-2-24-03\SMC_Developed.f03
plan Summary Information:
Number of: Cross sections = 11
culverts = 0
Bridges 1
MUltiple openings =
Inline Structures =
Lateral Structures =
computational Information
water surface calculation tolerance = critical depth calculation tolerance = Maximum number of iterations
0.01 0.01 20 0.3 Maximum difference tolerance Flow tolerance factor = = 0.001
computation options critical depth computed only where necessary Conveyance calculation Method: At breaks in n values only Friction slope Method: Average conveyance Computational Flow Regime: Mixed Flow
Page 1
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SMC_Developed.rep
FLOW DATA
Flow Title: Dev-Normal Depth Flow File : C:\Documents and settings\dedwards\Desktop\san Marcos creek rev-2-24-03\sMC_Developed.f03
Flow Data (cfs)
River Reach
San Marcos creek1
San Marcos creek1
Boundary conditions
River
Downstream
Reach
San Marcos creek1
Normal S = 0.028
GEOMETRY DATA
RS 11
7
Profile
PF#l
PF#l
13000
13000
upstream
Critical
Geometry Title: Developed conditions
Geometry File: C:\Documents and settings\dedwards\Desktop\san Marcos creek
rev-2-24-03\SMC_Developed.g03
CROSS SECTION
RIVER: San Marcos creek
REACH: 1
INPUT
Description:
station Elevation
Sta Elev
856 350
886.5 340
918.4 330
1000 324
1071. 5 328
1173 336
1210.5 346
Manning's n values
Sta n val
856 .1
Data
Sta
862
893.7
936.1
1013.7
1076.5
1179.8
Sta
899
Bank Sta: Left Right
899 1173
RS: 11
num= 31
Elev Sta Elev
348 867.1 346
338 899 336
329 949.9 328
323.5 1030 324
329 1080.3 330
338 1187.3 340
num= 3
n val sta n val
.1 1173 .1
Lengths: Left Channel
219 219
CROSS SECTION OUTPUT profile #PF#l
page 2
sta
872.7
905.9
964.1
1052.9
1083.7
1195
Right
219
Elev Sta
344 880.2
334 913.7
327 975.3
326 1062.2
332 1087
342 1202.4
coeff Cont r .
.1
Elev
342
332
326
327
334 344
Expan.
.3
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SMC_Developed.rep
E.G. Elev (ft) 338.87 Element Left DB channel Right DB
Vel Head (ft) 0.46 wt. n-val. 0.100 0.100
0.100
W.S. Elev (ft) 338.41 Reach Len. (ft) 0.10 0.10
0.10 crit W.S. (ft) 332.22 Flow Area (sq ft) 7.78 2393.65
9.91 E.G. slope (ft/ft) 0.007496 Area (sq ft) 7.78 2393.65
9.91
Q Total (cfs) 13000.00 Flow (cfs) 10.54 12975.53
13.93
TOp Width (ft) 289.12 TOp width (ft) 6.78 274.00 8.34 vel Total (ft/s) 5.39 Avg. vel. (ft/s) 1. 35 5.42 1.41 Max chl Dpth (ft) 14.91 Hydr. Depth (ft) 1.15 8.74 1.19 Cony. Total (cfs) 150154.4 Cony. (cfs) 121.8 149871. 8
160.9
Length wtd. (ft) 0.10 wetted per. (ft) 7.20 276.74
8.68
Min ch El (ft) 323.50 shear (lb/sq ft) 0.51 4.05
0.53 Alpha 1.01 Stream power (lb/ft s) 0.69 21. 94
0.75 Frctn Loss (ft) 0.00 Cum volume (acre-ft) 0.83 50.48
5.73
C & E Loss (ft) 0.02 Cum SA (acres) 0.31 4.96
1. 53
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance)
is less than 0.7 or greater than 1.4. This may indicate the need for additional cross
sections.
BRIDGE
RIVER: San Marcos creek
REACH: 1 RS: 10.5
INPUT
Description:
Distance from upstream XS = .1
Deck/Roadway width = 200
weir coefficient = 2.6
Upstream Deck/Roadway coordinates
num= 2 Sta Hi cord Lo cord Sta Hi cord Lo cord o 355 350 1202.4 349 344
Upstream Bridge Cross section Data
Station Elevation Data num= 31
Sta Elev Sta Elev Sta Elev
856 350 862 348 867.1 346
886.5 340 893.7 338 899 336 918.4 330 936.1 329 949.9 328
1000 324 1013.7 323.5 1030 324
Page 3
Sta Elev Sta Elev
872.7 344 880.2 342
905.9 334 913.7 332
964.1 327 975.3 326
1052.9 326 1062.2 327
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SMc_Developed.rep
1071. 5 328 1076.5 329 1080.3 330 1173 336 1179.8 338 1187.3 340 1210.5 346
Manning's n values num= 3
Sta n val Sta n val Sta n val
856 .1 899 .1 1173 .1
Bank Sta: Left Right coeff Contr. Expan .
899 1173 . 1 .3
Downstream Deck/Roadway coordinates
num= 2
Sta Hi cord Lo cord Sta Hi cord Lo cord 0 355 350 1191. 8 349 344
Downstream Bridge cross Section Data
station Elevation Data num= 29
Sta Elev Sta Elev Sta Elev 799.3 350 806.4 348 812.5 346 831. 5 340 837.6 338 843.9 336 862.5 330 885.5 330 899.3 329 951.9 323 971 322 1000 321. 5 1078.5 324 1140.6 330 1147.6 332 1169.3 338 1177 340 1184.5 342
Manning's n values num= 3 Sta n val Sta n val Sta n val
799.3 .1 862.5 .1 1140.6 .1
Bank Sta: Left Right coeff Contr. Expan.
862.5 1140.6 .1 .3
=
flow =
=
= =
1083.7 332 1087
1195 342 1202.4
Sta Elev Sta 818.9 344 825.3 850.3 334 856.5 904 328 910.9 1033.1 322 1064.7 1155.2 334 1161. 7 1191. 8 344
o horiz. to 1.0 vertical o horiz. to 1.0 vertical
.95
Upstream Embankment side slope
Downstream Embankment side slope Maximum allowable submergence for weir
Elevation at which weir flow begins
Energy head used in spillway design
spillway height used in design
weir crest shape = Broad crested
Number of Piers = 2
pier Data
pier Station upstream= 961.7 Downstream= 957.4 Upstream num= 2
width Elev Width Elev
15 326 15 350 Downstream num= 2
width Elev width Elev
15 327 15 350
Pier Data pier station Upstream= 1059.7 Downstream= 1059.1
Upstream num= 2
width Elev width Elev
15 323 15 350
Downstream num= 2
width Elev width Elev
15 329 15 350
Number of Bridge coefficient Sets = 1
page 4
334
344
Elev 342 332 327 323 336
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LOW Flow Methods and Data Energy
sM~Deve10ped.rep
selected Low Flow Methods Highest Energy Answer
High Flow Method
Energy only
Additional Bridge Parameters
Add Friction component to Momentum
Do not add weight component to Momentum class B flow critical depth computations use critical inside the bridge at the upstream end
depth
grade line criteria to check for pressure flow = upstream energy
BRIDGE OUTPUT profile #PF#l
E.G. US. (ft) 338.87
Inside BR DS
W.S. US. (ft) 338.41 337.32
Q Total (cfs) 13000.00
337.04
Q Bridge (cfs) 13000.00 329.27
Q weir (cfs) 15.54
weir Sta Lft (ft)
4.20
weir Sta Rgt (ft)
3098.92 weir submerg
0.22
weir Max Depth (ft)
20604.27
Min E1 weir Flow (ft) 349.01
10.50 Min E1 prs (ft) 345.67
354.77
Delta EG (ft) 1.62
202400.6
Delta ws (ft) 1.38
295.03
BR open Area (sq ft) 3874.77
0.06
BR open vel (ft/s) 6.47
0.02
coef of Q
2.25 Br Sel Method Energy only
9.44
Element Inside BR us
E.G. Elev (ft) 338.85
w.s. Elev (ft) 338.19
crit W.S. (ft) 332.98
Max chl Dpth (ft) 14.69
vel Total (ft/s) 6.47
Flow Area (sq ft) 2010.35
Froude # ch1 0.40
specif Force (cu ft) 13299.57
Hydr Depth (ft) 7.81
W.P. Total (ft) 305.85
conv. Total (cfs) 107113.1
Top width (ft) 257.50
Frctn Loss (ft) 1.41
c & E Loss eft) 0.11
shear Total (lb/sq ft) 6.04
power Total (lb/ft s) 39.09
warning: The conveyance ratio (upstream conveyance divided by downstream' conveyance)
is less than
0.7 or greater than 1.4. This may indicate the need for additional cross
sections. warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross section. This may indicate the need for additional cross sections.
CROSS SECTION page 5
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SM~Developed.rep
RIVER: San Marcos creek
REACH: 1 RS: 10
INPUT
Description: Cross section #10
Station Elevation Data num=
sta Elev Sta Elev
799.3 350 806.4 348 831.5 340 837.6 338
862.5 330 885.5 330
951.9 323 971 322
1078.5 324 1140.6 330
1169.3 338 1177 340
29
Sta 812.5
843.9
899.3
1000
1147.6
1184.5
Manning's n values num= 3 Sta n val Sta n val Sta
799.3 .1 862.5 .1 1140.6
Elev
346 336
329
321. 5
332
342
n val
.1
Bank Sta: Left Right
862.5 1140.6 Lengths: Left channel 198 120.5
Sta
818.9 850.3
904
1033.1
1155.2
1191.8
Right 71.1
Elev Sta
344 825.3 334 856.5 328 910.9
322 1064.7
334 1161. 7
344
coeff contr.
. 1
Elev
342 332 327
323
336
Expan .
.3 II CROSS SECTION OUTPUT Profile #PF#l
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E.G. Elev (ft)
Right OB
vel Head (ft)
0.100
W.S. Elev (ft)
71.10
crit W.S. (ft)
87.96
E.G. slope (ft/ft)
87.96
Q Total (cfs)
143.14 TOp Width (ft)
25.00
vel Total (ft/s)
1.63
Max chl Dpth (ft)
3.52
Conv. Total (cfs)
2947.3
Length Wtd. (ft)
25.97 Min ch El (ft)
0.50
Alpha
0.81
Frctn Loss (ft)
5.47
c & E Loss (ft)
1.44
337.25
0.22
337.03
0.002359
13000.00
324.93
3.69
15.53
267673.8
120.06
321. 50
1.04
0.43
0.03
Element
Wt. n-val.
Reach len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Conv. (cfs)
Wetted per. (ft)
shear (1 b/ sq ft)
Stream power (lb/ft s)
Cum volume (acre-ft)
cum SA (acres)
Left OB channel
0.100 0.100
198.00 120.50
75.75 3358.78
75.75 3358.78
121.23 12735.63
21. 83 278.10
1. 60 3.79
3.47 12.08
2496.1 262230.3
22.94 278.88
0.49 1. 77
0.78 6.72
0.61 37.79
0.23 3.72
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance)
is less than
0.7 or greater than 1.4. This may indicate the need for additional cross
sections. page 6
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CROSS SECTION
RIVER: San Marcos creek
REACH: 1 RS: 9
INPUT
Description: Cross section #9
Station Elevation Data num= Sta Elev Sta Elev
798.7 370 845.7 360
984.7 322 995.5 321 1039.9 323 1119 330
1222 338 1266.2 340
Manning's n values
Sta n val Sta
798.7 .1 935.5
num=
n val
.1
SMC_Developed.rep
17
Sta
875.6
1000
1135.3
3
Sta
1119
Elev Sta
350 911
320.5 1022.2
332 1155.7
n val
.1
Bank Sta: Left Right Lengths: Left Channel Right
935.5 1119
CROSS SECTION OUTPUT profile #PF#l
E.G. Elev (ft)
Right OB
vel Head (ft)
0.100
W.S. Elev (ft)
35.00
crit W.S. (ft) 217.48
E.G. slope (ft/ft) 217.48
Q Total (cfs)
455.49 Top Width (ft)
90.06 vel Total (ft/s) 2.09 Max chl Dpth (ft)
2.41 Conv. Total (cfs)
5805.1
Length Wtd. (ft)
90.33
Min ch El (ft)
0.93 Alpha 1.94
Frctn Loss (ft)
5.22
C & E LOSS (ft)
1.35
CROSS SECTION
RIVER: San Marcos Creek
336.78
0.52
336.26
0.006156
13000.00
288.90
5.48
15.76
165683.0
79.39
320.50
1.12
0.46
0.04
75 81.4 35
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
Top Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Conv. (cfs)
Wetted Per. (ft)
Shear (lb/sq ft)
Stream Power (lb/ft
Cum volume (acre-ft)
Cum SA (acres)
Page 7
5)
Elev Sta
340 935.5
321 1032.8
334 1207.1
coeff Contr.
.1
Left OB
0.100
75.00
48.04
48.04
113.88
15.34
2.37
3.13
1451.4
16.57
1.11
2.64
0.32
0.15
Elev
330
322
336
Expan.
.3
Channel
0.100
81.40
2104.95
2104.95
12430.63
183.50
5.91
11.47
158426.4
184.65
4.38
25.87
30.23
3.08
I
I SMC_Developed.rep
REACH: 1 RS: 8
I INPUT
Description: Cross section #8
Station Elevation Data num= 52
Sta Elev Sta Elev Sta Elev Sta Elev Sta Elev I 785.4 370 838.2 360 868 350 891.2 340 926.6 330 992.3 321 1000 320.4 1010.8 321 1061.9 326 1159 330
1180.3 331 1187.9 332 1201 333 1221. 8 334 1224.7 335
1228.6 336 1234.9 337 1242.3 338 1248.2 339 1267.9 340 I 1274.7 339 1280.6 338 1286.7 337 1293.4 336 1297.8 335
1301. 9 334 1320.1 333 1356.6 332 1380.4 331 1385.9 330
1391.1 329 1431. 5 329 1435.3 330 1441. 3 331 1447.5 332
1451. 3 333 1460.2 334 1464 335 1484.9 336 1486.2 337
I 1488.9 337 1490.1 336 1491. 9 335 1493.5 334 1509.8 333 1519.5 334 1522 335 1524 336 1526.6 337 1530.8 338
1540.8 339 1544.3 340
I Manning's n values num= 3
Sta n val Sta n val Sta n val
785.4 .1 926.6 .1 1159 .1
I Bank Sta: Left Right Lengths: Left channel Right coeff Cont r . Expan.
926.6 1159 111.43 120.3 120 .1 .3
Ineffective Flow num= 1
Sta L Sta R Elev Permanent
I 1269.7 1544.3 F
CROSS SECTION OUTPUT Profile #PF#l
I E.G. Elev (ft) 336.28 Element Left OB Channel
Right OB
vel Head (ft) 0.40 Wt. n-val. 0.100 0.100
I 0.100 W.S. Elev (ft) 335.89 Reach Len. (ft) 111.43 120.30
120.00
crit W.S. (ft) Flow Area (sq ft) 61.32 2361. 89
I 247.57
E.G. slope (ft/ft) 0.005544 Area (sq ft) 61.32 2361. 89
1067.90
Q Total (cfs) 13000.00 Flow (cfs) 135.79 12225.88
I 638.33 TOp Width (ft) 544.46 Top Width (ft) 20.84 232.40
291. 23
vel Total (ft/s) 4.87 Avg. vel. (ft/s) 2.21 5.18
I 2.58
Max chl Dpth (ft) 15.49 Hydr. Depth (ft) 2.94 10.16
3.58
Cony. Total (cfs) 174601. 8 Cony. (cfs) 1823.7 164204.7
I 8573.4
Length Wtd. (ft) 120.20 Wetted per. (ft) 21.65 233.38 69.58 Mi n ch El (ft) 320.40 Shear (lb/sq ft) 0.98 3.50
I 1. 23
Alpha 1.08 Stream power (lb/ft s) 2.17 18.13
3.17
Frctn Loss (ft) 0.75 Cum volume (acre-ft) 0.23 26.06
I 4.70
C & E LOSS (ft) 0.00 Cum SA (acres) 0.12 2.69
1.19
I Page 8
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SMC_Developed.rep
warning: Divided flow computed for this cross-section.
CROSS SECTION
RIVER: san Marcos Creek
REACH: 1 RS: 7
INPUT Description: Cross-Section #7
Station Elevation Data num= 42
Sta E1ev Sta Elev Sta E1ev Sta
690.83 380 700.99 379 708.72 378 715.2
734.77 375 746.46 374 751. 91 373 759.89
786.63 370 810.33 365 825.61 360 834.47
860.33 345 877 .96 340 896.84 335 912.77
976.57 321 991.2 320 1000 319.72 1008.84
1040.6 326 1084.17 327 1117.93 328 1123.73
1157.38 331 1181.4 332 1251. 87 333 1283.74
1295.07 335 1295.07 338 1296.09 338 1303.72
1316.83 347 1322.93 347
Manning's n values num= 3
Sta n val Sta n val Sta n val
690.83 .1 896.84 .1 1040.6 .1
Bank Sta: Left Right
896.84 1040.6
Lengths: Left Channel Right
73.52 100.15 106.36
CROSS SECTION OUTPUT profile #PF#l
E.G. Elev (ft) 335.53
Right OB vel Head (ft) 0.45
0.100
W.S. Elev (ft) 335.08
106.36
crit W.s. (ft)
1135.09 E.G. slope (ft/ft) 0.007115
1135.09
Q Total (cfs) 13000.00
3851. 44
TOp Width (ft) 398.53
254.47 vel Total (ft/s) 4.88
3.39 Max ch1 Dpth (ft) 15.36
4.46
Cony. Total (cfs) 154123.4
45661. 3
Length wtd. (ft) 101.04
254.82 Min ch E1 (ft) 319.72
1.98
Alpha 1.20
6.71
Frctn Loss (ft) 0.82
1.67
C & E LOSS (ft) 0.02
0.44
Element
Wt. n-va1.
Reach Len. (ft)
Flow Area, (sq ft)
Area (sq ft)
Flow (cfs)
Top Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Cony. (cfs)
Wetted Per. (ft)
shear (1 b/sq' ft)
Stream power (lb/ft s)
Cum volume (acre-ft)
Cum SA (acres)
page 9
E1ev sta
377 725.82
372 774.04
355 844.96
330 940.14
320 1026.08 329 1133.52
335 1285.16
340 1313.79
coeff Contr.
.1
Left OB
0.100
73.52
0.01
0.01
0.00
0.30
0.14
0.04
0.0
0.31
0.02
0.00
0.15
0.09
E1ev
376
371
350
325
325
330 335
345
Expan.
.3
Channel
0.100
100.15
1526.49
1526.49
9148.56
143.76
5.99
10.62
108462.1
145.99
4.64
27.83
20.69
2.17
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SMC_Developed.rep
CROSS SECTION
RIVER: San Marcos creek
REACH: 1 RS: 6
INPUT
Description: Cross-Section #6
station Elevation Data num= 51 Sta Elev sta Elev Sta
494.93 400 575.47 390 646.09 717.87 372 729.09 371 743.03
821.87 355 835.98 350 851.78
908.58 330 946.47 325 978.84 1008.06 319 1017.19 320 1033.51
1089.48 327 1099.19 327 1104.43
1136.33 331 1148.98 332 1155.99
1173.87 336 1217.5 336 1240.48
1258.48 337 1259.35 337 1276.22
1283.19 337 1283.19 340 1284.24
1305.12 345
Manning's n values
Sta n val sta
num= 3
n val Sta
494.93 .1 908.58 .1 1123.14
Elev Sta
380 691.53
370 782.6
345 869.91
320 998.26
325 1050.43
328 1109.3
333 1161.47
336 1243.21
337 1278.89
340 1295.14
n val
.1
Bank Sta: Left Right Lengths: Left Channel Right
908.58 1123.14 84.54 84.95 104.32
CROSS SECTION OUTPUT profile #PF#l
E.G. Elev (ft) 334.69
Right OB
vel Head (ft) 0.61
0.100
W.S. Elev (ft) 334.08
104.32
crit w.s. (ft)
94.28
E.G. slope (ft/ft) 0.009309
94.28
Q Total (cfs) 13000.00
243.76
TOp Width (ft) 271.72 38.68 vel Total (ft/s) 6.09
2.59 Max chl Dpth (ft) 15.48
2.44
Conv. Total (cfs) 134739.2
2526.5 Length wtd. (ft) 85.15
38.93
Min ch El (ft) 318.60
1.41
Alpha 1.06
3.64
Frctn Loss (ft)
0.17
0.87
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
conv. (cfs)
wetted per. (ft)
shear (1 b/sq ft)
Stream Power (lb/ft
Cum volume (acre-ft)
page 10
Elev Sta
374 703.41
365 805.03
340 885.95
319 1000
326 1068.05
329 1123.14
334 1165.61
336 1248.98
334.5 1281.16
343 1301.19
Elev
373
360
335
318.6
327
330
335
336 337
343
coeff Contr. Expan.
.1 .3
Left OB Channel
0.100 0.100
84.54 84.95
37.74 2004.24
37.74 2004.24
85.72 12670.52
18.48 214.56
2.27 6.32
2.04 9.34
888.5 131324.3
18.93 216.45
1.16 5.38
s) 2.63 34.02
0.12 16.63
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C & E Loss (ft)
0.09
SMC_Developed.rep
0.01 Cum SA (acres)
CROSS SECTION
RIVER: San Marcos creek
REACH: 1 RS: 5
INPUT
Description: Cross-section #5
Station Elevation Data num= 40
Sta Elev Sta Elev Sta
556.43 400 621.34 390 661.36
712.94 365 731.07 360 764.68
834.73 340 854.24 335 873.72
994.55 319 1000 318.33 1010.91
1042.53 326 1049.61 327 1065.12
1077.18 329 1081.03 330 1097.16
1153.06 350 1164.99 351 1175.25
1247.54 350 1259.68 349 1274.6
Manning's n values
Sta n val Sta num= 3 n val Sta
556.43 .1 873.72 .1 1081. 03
Elev Sta
380 678.15
355 791. 66
330 913.94
319 1018.9
327 1073.66
335 1111. 87
352 1209.45
348 1305.63
n val
.1
Bank Sta: Left Right
873.72 1081. 03
Lengths: Left Channel Right
106.38 83.7 84.95
CROSS SECTION OUTPUT profile #PF#l
E.G. Elev (ft) 333.81
Right OB
vel Head (ft) 0.72
0.100
W.S. Elev (ft) 333.10
84.95 crit W.S. (ft)
15.46 E.G. slope (ft/ft) 0.011158
15.46
Q Total (cfs) 13000.00
31. 50
Top Width (ft) 229.36
9.99
vel Total (ft/s) 6.73
2.04
Max chl Dpth (ft) 14.77
1. 55 Cony. Total (cfs) 123071.4
298.2
Length wtd. (ft) 83.74
10.46
Min ch El (ft) 318.33
1.03
Alpha 1.02
2.10
Frctn LOSS (ft) 1.04
0.04
C & E LOSs (ft) 0.01
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOp Width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Cony. (cfs)
Wetted Per. (ft)
Shear (lb/sq ft)
Stream Power (lb/ft
Cum volume (acre-ft)
Cum SA (acres)
Page 11
0.07
Elev Sta
375 695.92
350 819.29
325 989.76
320 1036.74
327 1075.63
340 1129.67
352 1225.19
347.21 1332.66
s)
coeff Cant r .
.1
Left OB
0.100
106.38
18.67
18.67
38.39
12.06
2.06
1. 55
363.5
12.45
1.04
2.15
0.06
0.04
1. 76
Elev
370
345
320
325
328
345
351 354.3
Expan.
.3
Channel
0.100
83.70
1896.62
1896.62
12930.11
207.31
6.82
9.15
122409.8
209.52
6.31
42.99
12.83
1. 35
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SMC_Developed.rep
0.03
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: San Marcos creek
REACH: 1 RS: 4
INPUT
Description: cross-Section #4
station Elevation Data num= 41
sta Elev Sta Elev Sta
678.28 400 716.25 390 735.55
782.31 370 801.95 365 816.66
859.68 345 874.58 340 895.96
972.9 320 983.33 319 994.86
1011.51 319 1033.43 320 1047.25
1070.6 326 1075.28 329 1098.95
1129.34 340 1144.92 345 1160.54
1227.4 362 1263.88 362 1282.93
1358.23 355.7
Manning's n values
Sta n val Sta
num= 3
n val Sta
678.28 .1 908.77 .1 1108.25
Elev Sta 385 753.13
360 831. 54
335 908.77
318 1000
320 1060.67
329 1108.25
350 1182.45
360 1322.33
n val
.1
Bank Sta: Left Right
908.77 1108.25
Lengths: Left channel Right
77.73 90.76 77.43
CROSS SECTION OUTPUT profile #PF#l
E.G. Elev (ft) 332.77
Right OB vel Head (ft) 0.84
0.100
w.s. Elev (ft) 331.92
77.43
crit w.s. (ft)
4.25
E.G. slope (ft/ft) 0.013805
4.25
Q Total (cfs) 13000.00
6.82
TOp width (ft) 208.82
4.42
vel Total (ft/s) 7.34
1.61
Max chl Dpth (ft) 14.48
0.96
Conv. Total (cfs) 110643.1
58.0
Length wtd. (ft) 90.75
4.82 Min ch El (ft) 317.44
0.76
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
TOP width (ft)
Avg. vel. (ft/s)
Hydr. Depth (ft)
Conv. (cfs)
wetted Per. (ft)
shear (lb/sq ft)
Elev Sta 380 767.74
355 843.82
330 940.33
317.44 1005.14
320 1069.44
330 1119.74
355 1209.64 356 1348.43
coeff Cont r .
.1
Left OB
0.100
77 .73
4.74
4.74
7.68
4.93
1. 62
0.96
65.4
5.29
0.77
Alpha 1.01 Stream power (1 b/ft s) 1.25
page 12
Elev
375
350
325
318
325
335
360
355
Expan.
.3
channel
0.100
90.76
1761. 91
1761. 91
12985.50
199.48
7.37
8.83
110519.7
203.14
7.48
55.09
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SMC_Developed.rep
1.22
Frctn Loss (ft) 1.23 Cum volume (acre-ft) 0.04 9.31
0.02
C & E Loss (ft) 0.01 Cum SA (acres) 0.02 0.96
0.01
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: San Marcos Creek
REACH: 1 RS: 3
INPUT
Description: Cross-section #3
Station Elevation Data num= 55
Sta Elev Sta Elev Sta
756.56 400 .782 395 797.74
834.12 375 845.86 370 861. 01
891. 99 350 899.97 345 908.29
949:34 325 968.54 320 981. 81
998.51 316 1000 315.9 1001. 49
1038.01 319 1054.64 320 1063.98
1081.19 320 1090.94 325 1096.42
1136.48 335 1151. 92 340 1184.21
1244.92 366 1265.74 367 1287.71
1322.77 366 1330.54 365 1337.32
1400.02 358 1406.82 357 1410.77
Manning's n values
Sta n val Sta
num= 3
n val Sta
756.56 .1 929.59 .1 1096.42
Elev Sta
390 809.19
365 871.59
340 917.99
319 988.18
316 1013.47
320 1074.56 330 1104.95
350 1216.77
368 1290.89
364 1382.59
357 1425.17
n val
.1
Bank Sta: Left Right Lengths: Left Channel Right
929.59 1096.42 62.17 102.86 114.21
CROSS SECTION OUTPUT Profile #PF#l
E.G. Elev (ft) 331.53 Right OB vel Head (ft) 0.94
0.100
W.s. Elev (ft) 330.59
114.21
Crit W.S. (ft)
0.37
E.G. slope (ftjft) 0.013230
0.37
Q Total (cfs) 13000.00
0.26
Top Width (ft) 169.45
1.26
vel Total (ftjs) 7.78
0.71
Max chl Dpth (ft) 14.69
0.29 Cony. Total (cfs) 113020.2
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
Top Width (ft)
Avg. vel. (ftjs)
Hydr. Depth (ft)
Cony. (cfs)
Page 13
Elev Sta Elev
385 820.36 380
360 882.06 355 . 335 929.59 330
318 991.86 317
317 1021. 52 318
319 1076.35 31:9
334 1124.08 334
360 1236.15 365
368 1309.25 367
360 1389.89 359
357 1433.14 358.6
coeff Contr. Expan.
.1 .3
Left OB Channel
0.100 0.100
62.17 102.86
0.40 1670.24
0.40 1670.24
0.29 12999.45
1. 37 166.83
0.71 7.78
0.29 10.01
2.5 113015.4
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SMC_Developed.rep
2.3
Length Wtd. (ft) 102.86 wetted per. (ft) 1.49 171.88 1. 39
Min ch El (ft) 315.90 shear (lb/sq ft) 0.22 8.03
0.22
Alpha 1.00 Stream Power (lb/ft s) 0.16 62.47 0.16
Frctn LOSS (ft) 1.72 Cum Volume (acre-ft) 0.03 5.73 0.01 C & E Loss (ft) 0.05 Cum SA (acres) 0.02 0.58 0.01
warning: The velocity head has changed by more than 0.5 ft (0.15 m). This may
indicate the need for
additional cross sections.
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: San Marcos creek
REACH: 1 RS: 2
INPUT
Description: Cross-section #2
Station Elevation Data num= 44 Sta Elev Sta Elev Sta
817.95 390 835.8 385 848.86
886.76 365 897.43 360 907.12
937.72 340 945.29 335 955.45
992.43 316 995.62 315 1000
1022.62 317 1040.86 317 1070.99
1095.8 330 1112.35 330 1124.85
1145.49 330 1163.01 335 1179.36
1223 355 1240.82 360 1256.16
1427.66 360 1472.02 358 1477.48
Manning's n values
Sta n Val Sta
num= 3
n Val Sta
817.95 .1 955.45 .1 1095.8
Elev Sta
380 861. 86
355 915.7
330 964.03
314.34 1004.39
317 1079.24 329 1132.22
340 1191. 6
365 1318.92
357.6 1501. 06
n val
.1
Bank Sta: Left Right
955.45 1095.8
Lengths: Left Channel Right
CROSS SECTION OUTPUT
E.G. Elev (ft)
Right OB
Vel Head (ft)
W.S. Elev (ft)
63.34
Crit W.S. (ft)
E.G. slope (ft/ft)
Q Total (cfs)
181.76 92.2 63.34
Profile #PF#l
329.76
1.48
328.27
0.021693
13000.00
Element
Wt. n-val.
Reach Len. (ft)
Flow Area (sq ft)
Area (sq ft)
Flow (cfs)
page 14
Elev Sta
375 874.73
350 925.43 325 974.02
315 1011. 84
320 1089.41 328.33 1142.44
345 1208
369.8 1372.13
358.6
coeff Contr.
.1
Left OB
181. 76
Elev
370
345
320 316
325
329
350
365
Expan.
.3
Channel
0.100
92.20
1329.82
1329.82
13000.00
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TOp Width (ft) SMC_Developed.r~ 135.19 TOp Width ( t) 135.19
vel Total (ft/s) 9.78 Avg. vel. (ft/s) 9.78
Max chl Dpth (ft) 13.93 Hydr. Depth (ft) 9.84
Conv. Total (cfs) 88263.4 Conv. (cfs) 88263.4
Length wtd. (ft) 92.38 wetted per. (ft) 140.87
Min ch El (ft) 314.34 shear (lb/sq ft) 12.79
Alpha 1.00 Stream power (lb/ft s) 124.98
Frctn Loss (ft) 1.16 Cum volume (acre-ft) 0.03 2.19 0.01 C & E Loss (ft) 0.31 Cum SA (acres) 0.02 0.22 0.01
warning: The velocity head has changed by more than 0.5 ft (0.15 m). This may
indicate the need for
additional cross sections.
warning: The conveyance ratio (upstream conveyance divided by downstream conveyance) is less than
0.7 or greater than 1.4. This may indicate the need for additional cross
sections.
warning: The energy loss was greater than 1.0 ft (0.3 m). between the current and
previous cross
section. This may indicate the need for additional cross sections.
CROSS SECTION
RIVER: San Marcos creek
REACH: 1 RS: 1
INPUT
Description: Cross-Section #1 Dis (Dr. chang's Cross section #6.047) station Elevation Data num= 35
sta Elev sta Elev sta
879.61 353.9 893.38 350 911.57
948.88 330 957.68 325 968.62 985.29 313 989.11 312 1000
1030.85 314 1034.87 315 1042.44
1060.24 327 1131.57 327 1135.93
1170.78 345 1186.7 350 1204.59
1269.54 369 1349.66 365 1408.31
Manning's n values
Sta n val sta
num= 3
n val sta
879.61 .035 968.62 .035 1042.44
Elev Sta
345 924.79 320 974.88 311. 76 1010.89 320 1054.34
330 1140.53
355 1223.18
360 1458.18
n val
.035
Bank sta: Left Right
968.62 1042.44
Lengths: Left Channel Right o
CROSS SECTION OUTPUT
E.G. Elev (ft)
Right OB
vel Head (ft)
profile #PF#l
328.29
4.58
o 0
Element
Wt. n-val.
page 15
Elev Sta 340 937.35 315 980.16
312 1025.07 325 1056.34
335 1150.46
360 1239.57
357.21 1480.39
coeff Cont r . .1
Left OB
0.035
Elev
335
314
313
326
340
365
358.65
Expan.
.3
Channel
0.035
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0.035
W.S. Elev (ft) 323.71 Reach Len. (ft)
crit W.S. (ft) 323.71 Flow Area (sq ft) 15.05 742.26
16.37
E.G. slope (ft/ft) 0.008168 Area (sq ft) 15.05 742.26
16.37
Q Total (cfs) 13000.00 Flow (cfs) 81.80 12828.42
89.78
TOP Width (ft) 90.76 Top Width (ft) 8.11 73.82
8.83
vel Total (ft/s) 16.80 Avg. Vel. (ft/s) 5.44 17.28
5.49 Max chl Dpth (ft) 11. 95 Hydr. Depth (ft) 1.85 10.06
1.85
Conv. Total (cfs) 143845.6 Conv. (cfs) 905.1 141947.0
993.5
Length wtd. (ft) wetted Per. (ft) 8.92 77 .64
9.57
Min ch El (ft) 311. 76 shear (lb/sq ft) 0.86 4.87
0.87
Alpha 1.05 Stream Power (lb/ft s) 4.67 84.25
4.78
Frctn Loss (ft) Cum volume (acre-ft)
C & E Loss (ft) Cum SA (acres)
warning: slope too steep for slope area to converge during supercritical flow
calculations (normal depth
is below critical depth). water surface set to critical depth.
SUMMARY OF MANNING'S N VALUES
River:san Marcos creek
Reach River sta. n1 n2 n3
1 11 .1 .1 .1
1 10.5 Bridge
1 10 .1 .1 .1
1 9 .1 .1 .1
1 8 .1 .1 .1
1 7 .1 .1 .1
1 6 .1 .1 .1
1 5 .1 .1 .1
1 4 .1 .1 .1
1 3 .1 .1 .1
1 2 .1 .1 .1
1 1 .035 .035 .035
SUMMARY OF REACH LENGTHS
River: San Marcos creek
Reach River Sta. Left Channel Right
page 16
.---~
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1 11 219 219 219
1 10.5 Bridge
1 10 198 120.5 71.1
1 9 75 81.4 35
1 8 111.43 120.3 120
1 7 73.52 100.15 106.36
1 6 84.54 84.95 104.32
1 5 106.38 83.7 84.95
1 4 77.73 90.76 77.43
1 3 62.17 102.86 114.21
1 2 181. 76 92.2 63.34
1 1 0 0 0
SUMMARY OF CONTRACTION AND EXPANSION COEFFICIENTS
River: San Marcos creek
Reach River sta. contr. Expan.
1 11 .1 .3
1 10.5 Bridge
1 10 .1 .3
1 9 .1 .3
1 8 .1 .3
1 7 .1 .3
1 6 .1 .3
1 5 .1 .3
1 4 .1 .3
1 3 .1 .3
1 2 .1 .3
1 1 .1 .3
Profile output Table -standard Table 1
Reach River Sta profile Q Total Mi n ch El W.S. Elev crit W.S.
E.G. Elev E.G. slope vel chnl Flow Area TOP Width Houde # chl
(cfs) (ft) (ft) (ft)
(ft) (ft/ft) (ft/s) (sq ft) (ft)
1 11 PF#l 13000.00 323.50 338.41 332.22
338.87 0.007496 5.42 2411.34 289.12 0.32
1 10.5 Bridge
1 10 PF#l 13000.00 321. 50 337.03
337.25 0.002359 3.79 3522.49 324.93 0.19
1 9 PF#l 13000.00 320.50 336.26
336.78 0.006156 5.91 2370.47 288.90 0.31
1 8 PF#l 13000.00 320.40 335.89
336.28 0.005544 5.18 2670.78 544.46 0.29
1 7 PF#l 13000.00 319.72 335.08
335.53 0.007115 5.99 2661.59 398.53 0.32
1 6 PF#l 13000.00 318.60 334.08
334.69 0.009309 6.32 2136.27 271. 72 0.36
1 5 PF#l 13000.00 318.33 333.10
333.81 0.011158 6.82 1930.75 229.36 0.40
1 4 PF#l 13000.00 317.44 331. 92
page 17
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1
1
332.77 0.013805
3
331. 53 0.013230
2
329.76 0.021693
1
328.29 0.008168
SMC_Developed.rep
7.37 1770.89 208.82 0.44
PF#l 13000.00 315.90 330.59
7.78 1671.01 169.45 0.43
PF#l 13000.00 314.34 328.27
9.78 1329.82 135.19 0.55
PF#l 13000.00 311. 76 323.71 323.71
17.28 773.68 90.76 0.96
page 18
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 5
PRE-DEVELOPED CONDITIONS
FLOODPLAIN EXHIBIT
DE:de h:\reporlsI175111361clomrlclom,_01.doc
w.o.1751-136 315/20072:26 PM
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La Costa Ridge 2.6
Conditional Letter of Map Revision Based on Fill
CHAPTER 6
DEVELOPED CONDITIONS
. FLOODPLAIN EXHIBIT
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w.o.1751-136 3/5/20072:26 PM
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EXISTING FLOODPLAIN
FLOWLINE
CROSS SECTION
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DATUM NOTE:
NGVD 1929 VERTICAL DATUM USED
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X
PREPARED BY:
HUNSAKER
& ASSOCIATES
S AN DIE C o, IN C.
PlANNING 10179 Huemeken> Street
ENGINEERING San Diego. Ca 92121
SURVEYING PH(8S8)558-4SOO· FX(3S8)s58-1414
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NITYMAP
NTS
DEVELOPED FLOODPLAIN EXHIBIT FOR
LA COSTA RIDGE
NEIGHBORHOOD 2.6
CITY OF CARLSBAD, CAUFORNIA
/
SHEET
1
OF
1
R.\0459\8.Hycl\0459$Hll-DEY -HECRAS,clwg[ 20B5JMnr-06-2007.0B.OB
.. o
TENTATIVE CARLSBAD TRACT MAP NO.' CT 05-13
& CONDOMINIUM PE'RMIT NO. CP 05-12
COSTA RIDGE
NEIGHBORHOOD 2.6
'.
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""--" ... ~.
,-----.--~
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(
PROJECT MAP
PARKING SUMMARY
PARKING REQUIRED
DU's # SPACES/DU"
SINGLE FAMILY 53 2
5 SPACES
(FOR 1 ST 10 UNITS)
VISITOR PARKING 53 .3 SPACES X43*
(FOR REMAINING UNITS)
SUBTOTAL
TOTAL 53
ALL STANDARD SPACES
TOTAL SPACES
106
5
12.9
17.9
124
*PER L A COSTA OAKS VILLAGE DEY. STANDARDS 7.7.3.8 K (PARKING REQ'D PER
CARLSBAD MUNICIPAL CODE SECTION 21.44) .
PARKING PROVIDED
DU's #SPACES/DU TOTAL SPACES
SINGLE FAMILY
FULL-SIZED (IN GARAGE) 53 2 106
VISITOR PARKING' 53 2 SPACES/UNIT* 106
TOTAL 53 --212
'VISITOR PARKING ALLOWED IN STREET F
1 STREET SPACE AND 1 DRIVEWAY SPACE PER UNIT.
SCALE: 1"= 100'
ARCHITECTURE SUMMARY
PLAN 1st FLOOR 2nd FLOOR LIVING GARAGE TOTAL BLDG FOOTPRINT
NO. SQ. FT. SQ. FT. SQ. FT. SQ. FT. SQ. FT. SQ. FT.
1 908 1,069 1,977 429 2,406 1,337
2 931 1,090 2,021 445 2,466 1,376
3 1,120 1,236 2,356 428 2,784 1,548
BUILDING COVERAGE SUMMARY
PLAN NO. #OF %MIX FOOTPRINT TOTAL BLDG.
UNITS SQ. FT. COVERAGE
1 8 15% 1,337 10,696
2 23 43% 1,376 31,648
3 22 42% 1,548 34,056
TOTAL 53 100% 76400 ,
T
CITY OF ENCINITAS
VICINITY MAP
N
I MASTER TEN" n'l""_../
MAP B01IND,4RY
NTS
T
MASTER TENTA TIllE MAP BOUNDARY
G
o
LA COSTA VICINITY MAP
Nrs
CONDOMINIUM NOTE
THIS SUBDIVISION IS A CONDOMINIUM PROJECT AS OEFINED IN SECTION 1351 OF THE
CIVIL CODE OF THE STATE OF CALIFORNIA AND FILED PURSUANT TO THE SUBDIVISION
MAP ACT. THE TOTAL NUMBER OF CONDOMINIUM UNITS FOR THIS PROJECT IS 53,
AND THE TOTAL NUMBER OF LOTS IS 10. SEE BREAKDOWN BELOW.
LOT 1 = 7 UNITS
LOT 2 = 15 UNITS
LOT 3 = 13 UNITS
LOT 4 = 14 UNITS
LEGEND
SUBDIVISION BOUNDARY
LOT LINE
EXCLUSIVE USE AREA
EXISTING LOT NUMBER
PROPosm LOT NUMBER
WITH PAD ELEVA TlON
EARTHEN SWALE
TERRACE DRAIN
BROW DITCH
RIPRAP (ENERGY DISSIPA TER)
EASEMENT LINE
TITLE REPORT ITEM NO.
SLOPE (2: 1 MAX)
PROPOSED % OF GRAOE
EXISTING SEWER MAIN
PROPOSED SEWER MAIN
(8" PVC UNLESS OTHERWISE NOTED)
EXISTING WATER MAIN WITH FIRE HYDRANT
PROPOSED WA TER MAIN WITH FIRE HYDRANT
(8" PVC UNLESS OTHERWISE NOTED)
EXISTING RECLAIMED WA TER
PROPOSED RECLAIMED WA TER
EXISTING STORM DRAIN SYSTEM
PROPOSED PRIVA TE STORM DRAIN SYSTEM
A. INLET OR CA TCH BASIN
B. HEADWALL
C. CLEANOUT
RETAINING WALL
EXISTING SPOT ELEVA TlONS
PROPOSED SPOT ELEVA TlON
EXISTING CONTOURS
PROPOSED CONTOURS
EXISTING STREET LIGHT
PROPOSED STREET LIGHT
EXISTING TRAIL
PROPOSED TRAIL
PROPOSED SOUND WALL
PLAN TYPE
ELEVA TlON AND COLOR SCHEME
TOP OF WALLj
FINISHED SURFACE
--,..---------
LoT 270
CID
P 736.6
• -01IIII_-
(jJ
-~~-___ '-.1. ___ _
-------1.")
--....,.--<0
----W-'!'--
--W~-
----RW----
---RW--
=-='= - -==1(J
(2,55.5)
237.7
_0 000 0000 0 <
00 a 0 _ 0 0 00 0
rn
<EC-I?
349.7TW
J45.7FS
PUBLIC UTILITIES AND DISTRICTS
GAS AND ELECTRIC ............. SAN DIEGO GAS AND ELECTRIC COMPANY
TELEPHONE .................... PACIFIC BELL TELEPHONE .
WA TER ........... _ . .. . . . . . . . .. VALLEe I TOS WA TER D I STR I CT
SEWER .....•.................. VALLECITOS WATER DISTRICT
STORM DRAIN .................. PRIVATE (HOA)
POLiCE •...................... CITY OF CARLSBAD
SCHOOLS ...................... SAN MARCOS SCHOOL DISTRICT
CABLE. . . . . . . . . . . . . . . . . . . . . . .. ADELPH I A
RECLAIMED WATER .............. VALLECITOS WATER DISTRICT
ABBREVIATIONS
FL FLOW LINE IE INVERT ELEVATIDN
TW TOP OF WALL R/W RIGHT OF WAY
BW BOTTOM OF WALL PL PROPERTY LINE
TF TOP OF FOOTI NG GB GRADE,BREAK
FS FINISH SURFACE PI POINT OF INTERSECTION (V. C.)
S SEWER P PAD ELEVAT /ON
W WATER SF GROSS SO. FT.
RW RECLAIMED WATER NSF NET SO. FT.
SO STORM OF?A IN FP FLOOD PLAIN
NTS NOT TO SCALE VC VERTICAL CURVE
ELEV ELEVATION MH MANHOLE
RCP REINFORCED CONCRETE PIPE
LEGAL DESCRIPTION
LA COSTA RIDGE NEIGHB~HDOO 2.6
LOT 223 OF CITY OF CARLSBAD TRACT CT 99-04-02, V I LLAGES OF LA
COSTA -LA COSTA RIDGE -NEIGHB~HDOD 2.6, IN THE CITY OF
CARLSBAD, COUNTY OF SAN DIEGO, STATE OF CALlF~NIA, ACCORDING
TO MAP NO. THEREOF NO. 14838 F I LEO I N THE OFF! CE OF THE COUNTY
RECORDER OF SAN 0 I EGO COUNTY ON JUL Y 14, 2004.
EARTHWORK / GRADING QUANTITIES
TOTAL PROJECT
RAW CUT: 52,700 C. Y.
RA W FILL: 20,600 C. Y.
eXPORT: 32,100 C. Y.
TOTAL GRADED AREA: 9.0 ACRES (5,860 c. Y./AC.)
CT 05-13/CP 05-12
GENERAL NOTES
1. TOTAL GROSS SITE AREA: 10.8 ACRES
TOTAL NET SITE AREA: 9.1 ACRES (NET = GROSS SITE AREA -
CORINTIA ST. -MELROSE DR. VACATION -RANCHO SANTA FE RD.)
2. EXISTING LAND USE: VACANT -MASS GRADED (PER DRAWING 397-3F)
3. PROPOSED LAND USE: MULTI-FAMILY DETACHED RESIDENTIAL AND OPEN SPACE
4. TOTAL NUMBER OF DWELLING UNI TS: 53
5. TOTAL NUMBER OF LOTS: 10
6. ASSESSOR'S PARCEL NUMBER: 223-720-03
7. EX I ST I NG GENERAL PLAN LAND USE DES I GNA T ION:
RMH (RESIDENTIAL MEDIUM-HIGH DENSITY {B-15 dulac})
8. EXISTING ZONING: PC .
9. MASTER PLAN UNDERLYING ZONING: RD-M (RESIDENTIAL DENSITY-MULTIPLE)
10. GROSS DENSITY: 5.4 DU/AC (53 DU'S/9.B AC.)
11. LFMP ZONE: ZONE 11
12. AVERAGE DAILY TRIPS: 424 (53 UNITS x B TRIPS/DAY)
13. BUILDING COVERAG£: I.B ACRES (15.2%)
14. PERCENT LANDSCAP I NG: APPROX I MA TEL Y 49. 6%
GENERAL [)ESIGN NOTES
1. ALL GRAD I NG FOR PROPOSED AND FUTURE STREETS SHALL CONFORM TO THE CITY
OF CARLSBAD DESIGN STANDARDS AND AS REQUIRED BY THE CITY ENGINEER.
2. ALL EASEMENTS SHALL BE PROVIDED, REMOVED OR RELOCATED
AS REQUIRED BY THE CITY ENGINEER, PUBLIC UTILITIES AND
THEIR APPROPRIATE DISTRICTS.
3. ALL PROPOSED UTILITIES SHALL BE INSTALLED UNDERGROUND. ( )
4 SOURCE OF TOPOGRAPHY: SAN-LO AERIAL SURVEYS, FLOWN 5-2-2000 OFFSITE
. AND DlIGITAL MAPPING, INC, FLOwN 12-20-2005 (ONSIT£)
5. CONTOURED INTERVALS: 1'/5' FEET
6. MANUFACTURED SLOPE RATIOS SHALL BE VARIABLE (2: 1 MAX)..· .
7. FINISHED GRADES ARE APPROXIMATE ONLY AND SUBJECT TO CHANGE AT FINAL DESIGN,
CONSISTENT WITH THE CITY'S SUBSTANTIAL CONFORMANCE GUIDELINES,
8. SOILS INFORMATION WAS OBTAINED FROM THE PRELIMINARY .
SOILS REPORT PREPARED BY: PACIFIC SOILS DATED: JUN-02-05
9. EXACT GRADING DESIGN AND BROWDITCH LOCATION AND SIZING SHALL BE DONE AT
FINAL ENGINEERING PER TIE FiNAL GRADING PLAN AND APPROVED HYDROLOGY REPORT.
10. GRADED SWALES SHALL HAVE A MINIMUM OF 1% FLOW LINE GRADE.
DRA I NAGE OUTLHS THA T ARE I NACCESS I BLE SHALL USE A "0-4 t" OUTLET
DISSIPATERS INSTEAD OF RIPRAP FIELDS. EXACT LOCATIONS TO BE
D£TERM I NED AT FINAL ENG I NEER I NG.
11. ALL STREET DESIGNS, STREET LIGHT, AND FIRE HYORANTS TO CONFORM.
TO CITY OF CARLSBAD DESIGN STANDARDS AND AS REQUIRED BY CITY ENGINEER.
12. LANDSCAPING AND TREE PLANTING SHALL BE PER THE CARLSBAD
LANDSCAPE MANUAL AND THE VILLAGES OF LA COSTA MASTER PLAN.
(SEE MASTER LANDSCAPE PLAN FOR THE RIDGE)
13. ALL STREET DESIGN SH4LL CONFORM TO THE CI TY OF CARLSBAD DESIGN
STANDARDS AND AS REQUIRED BY TIE CITY ENGINEER.
14. CUL-DE-SAC CURB. GRADES SHALL BE A MINIMUM OF 1%.
15. THE SUBDIVIDER/DEVELOPER SHALL PROVIDE AND INSTALL APPROVED STREET
LIGHT STANDAROS AND FIXTURES IN THE TYPE AND NUMBER APPROVED BY .
THE CITY OF CARLSBAD, THE PUBLI C WORKS DEPARTMENT -TRAFFI C
SECTI ON AND PER THE CITY'S STREET LI GHT CONSTRUCT ION STANDARDS.
STREET LIGHTS AS SHOWN ON THIS MAP ARE TO BE USED AS A GUIDE ONLY.
16. THIS TM ASSUMES CERTAIN BACKBONE INFRASTRUCTURE IS EXISTING OR
APPROVED AND BONDED FOR TO THE SA T I SF ACT I ON OF THE CITY ENG I NEER.
THEY INCLUDE BUT ARE NOT LIMITED TO PORTIONS OF CORINTIA STREET.
17. AVERAGE SEWER GENERATION: APPROX .02 MGD (FOR 53EDU's)
WA TER PRESSURE ZONE: 640
AVERAGE POTABLE WATER DEMAND: 71.3 GPM, 164.0 GPM PEAK
FIRE FLOW DEMAND: 2500 GPM AT EACH FIRE HYDRANT.
18. WHERE NECESSARY INORDER TO MEET THE 5' MINIMUM POSITIVE DRAINAGE ON
SIDEYARDS, DEEPENED FOOTINGS WILL BE UTILIZED AS ALLOWED PER PACIFIC SOILS ING.,
LETTER DA TED JANUARY 16, 2006.
19. PRIOR TO THE ISSUANCE OF A PRECISE GRADING PERMIT OR ANY BUILDING
PERMITS, THE EXISTING IMPROVEMENT DRAWINGS SHALL BE CONSTRUCTION
CHANGED TO SHOW THE RELOCATION OF ANY DRIVEWAYS, SEWER AND WATER
LATERALS WHICH MAY CONFLICT WITH ANY CITY STANDARDS OR PROPOSED
RES IDENTI AL UN I TS/DR I VEWA YS.
20. ANY RESIDENTIAL STRUCTURES OR PORTIONS OF THE STRUCTURE SUCH AS
DECKS/PATIOS/BALCON\ES THAT ARE WITHIN FIRE PROTECTION ZONES SHALL
BE FIRE RATED AND MADE OF IGNI TlON RESISTANT CONSTRUCTION. . " .
OWNER' SUBDIVIDER
WESTERN PACIFIC HOUSING, I~.
5790 FLEET STREET
DR HORTON: WESTERN PACIFIC SERIES
5790 FLEET STREET
SUITE 210
CARLSBAD CA, 92008
(760) 929-1600
.,;>.-.--~ -
c
SUITE 210
CARLSBAD CA, 92008
(760) 929-1600
S ;~4£&' , REPRES~TA TlVE. V,cE RZBSrA9V'T
DAVID A. HAMMAR R.C.E. 34757
MY REGISTRATION EXPIRES ON 9/30/07
PREPARED BY: NO. REVISIONS
1 1st SUBMITTAL
2 RESUBMITT AL
HUNSAKER 3 RESUBMITTAL
& ASSOCIATES 4 RESUBMI IT AL
SAN DIEGO, INC 5 SUBMITTAL FOR PC HEARING
PlANNING 10179 Huennekens Street 6
ENGINEERING San [);ego, Ca 92121 7 SURVEYING PH(656)S58-4S<lO· FX{85S)S5& 1414
8
9
TENTATIVE MAP/CONDOMINIUM PERMIT
LA COSTA RIDGE
NEIGHBORHOOD 2.6
DATE
DATE BY
06/22/05 JHA
10/25/05 JHA
01/19/06 JHA
04/07/06 JHA
07/12/06 JHA
SHEET
1
OF
VILLAGES OF LA COSTA 6 cj
~ __________________________________________________________________________ ~ _____________________________________________________________________ 1-______ ~C~ity~·~O~f~c:a~rIS~b~a~d~l.~C~a~lif~O~rn~ia~~~~~~~~
R,\0459\&Pln\ TM Sht l.dwg[lJuI-12-2006,0860
LOT 5 = 4 UNITS
H&A 3!5!2()07
5C" P'U8UC STREET / PU8UC UTiLiTY EASEMENT ?('(f +-----------------------------------------------f
;6' FENCE/LOT LINE
PUBLIC LOCAL STREET
EXISTING CORINTIA STREET
PER DRAWING NO. 368-28 (STATION 11+10 TO 11+90)
DRAWING NO. 397-3 (STATION 79+09 TO 82.01)
DRAWING NO. 397-30 (STA TlON 43+40 TO 51.30)
ORA WING NO. 200--2
,C{ /V/
SC;U (j-if..F::L Y
e/l!
. MELROSE DRIVE
STA 208+81.64 TO 212+33.88
PER ORA WING NO. 368-28
RANCHO SANTA FE ROAD
STA 281 +25.00 TO 284+37.26
PER DRAWING NO. 368-28
RANCHO SANTA FE ROAD
STA 281 +25.00 TO 284+37.26
PER ORA WING NO. 368 2B
PAD
NTS
NTS
NTS
NTS
WALL
NDl1~dEPLY
J\'/W
,''10.:;: ri--tF F([ r
H/W
----~~
CONCf-?E -;E WAL.,i(
TYPICAL EXISTING STREET SECTIONS
ROW-----,
SIDEWALK\ \
< ..• ' ...•.. ' L."·....". '. -. I ! \" . I: (' : '. L. i:. "", .... -, .. ',.", ~ '."' \ .< , ~ \". ,
/ 1\
CURB-J/
TYPICAL DRIVEWA Y CUT DETAIL
SCALE 1 "=20'
0(0,0 ~<" ,.;, <?-
" ~i' ~~ 1?e1-J-
~. '-'::;z
RETAINING WALL
WHERE SHOWN
PROPERTY LINE ~
B' J'"
PROPOSED STABILIZED
DECOMPOSED GRANITE
TRAIL CONCRE E WALK
OVER B OW DITCH
,.," '-'-" I_f-J./!l~ -/III 1111_' ., 111=
-III =1/11=
BROW DITCH
SECTION A-A
.( .,'''' .. .
PROPOSED ONISTE PUBLIC TYPICAL CITY WIDE TRAIL SECTION
0( dh-~ ,;>. ~i' v.. '1'-/-~. ~z
RETAINING WALL
WHERE SHOWN
PROPER TY LINE ~
8' 3' "
PROPOSED 6' WIDE
STABILIZED DECOMPOSED
GRANITE TRAIL 2'
SECTION B-B
BROW 0 TCH
NTS
PROPOSED ONSITE PUBLIC TYPICAL CITY WIDE TRAIL SECTION
NTS
l' SHOULDER FOIff-=j~-,6,-' .:.:TR;:..A",IL",E",A",SE",M",EN:..;.T_TI' SHOULDER FOR
SLOPES EXCEEDING 4: I 4' SLOPES EXCEEDING 4: I
0( ~O,o<"
1..:>. ~7 v.. ~'1'-t..J
~
BROW DITCH
RETAINING WALL
SECTIONC-C
PROPOSED ONSITE PRIVATE TRAIL CONNECTION TYPICAL SECT/ON
l' SHOULDER FOR
SLOPES EXCEEDING 4: 1 r.. l' SHOULDER FOR
2'-8' VARIABLE WlDTil SLOPES EXCEEDING 4: I
SECTIOND-D
OFFSITE PUBLIC CITY WIDE TYPICAL SECTION
. TRAIL IMPROVEMENTS TO BE INSTALLED BY MASTER DEVELOPER PER CT 99-04
NTS
NTS
H&A 3i5!2007
CT 05-13/CP 05-12
------------------------------/\ /\
EXCLUSIVE USE AREA CALCULATIONS
EXCLUSIVE USE AREA NO. EXCLUSIVE USE AREA (SF)
1 5,429
: 2 5,246 ~--\
I /LOT LINE 3 5,369
4 6,255
I 5 5,573
6 5,102
II ~ PROPOSED EARTHEN
7 4,915
8 4,651
9 4,450 rV SWALE 1% MIN.
10 4,207
11 3,862
"
II
"' ,
IV
, , • < • , ,
1\
<
I
I
/ -
SIDEwALK / CURB/
TYPICAL DRAINAGE DETAIL
NOT TO SCALE
T yP STREU LIGHT ICAL ''\,
N'LY AND w'LY f-rl s'LY AND £'L Y
R/W 56' PUBLIC UTILITY EASEMENT R/W
28' 28'
J' 10' 18' 18' 10' J'
MUV. II MIN.
6" 5' 5' ~ 5' 5' 6"
-?
\ '
~\;i-0 -::;,.'/ \ lIllY" ~~ f-TYPICAL 'k j) ,~ 2% nRE HYDRANT AIII\
~ -n ....2!L (7
j.. 11// "/1. -'. -'" ~ '--:"-l r" 2% % r I IIIJI~ .-_~_,_ /III %..? ,,~ <a" ~ -/ .... :.:.::: .... ::." ~'" ~ ... .... . ... ~ ...., . <a ~~ "}:~\\\\7 _1/11_"1111 1111 ~ • i'111..\,IH III. "':::"'0-?' ~ ::; ~ CONCRETE '"
\ ""v l, '.'
AL DRY UTILITY TYPIC
TRENCH ( SDG&E, PHONE, 1u c<-$8" WA TER MAIN WALK (TYP
'" ~_ "'"\ '-OW,,"" W'"
ICAL)
CATII, ETC) I'-A
AND GUTTER
ICAl DRY UTILITY TYP
BOXES , VAUL TS, ACCESS
fC \ STORM (TYPICAL)
\... ]/DRAIN*
FACE OF
DWELLING
HANDHOLE, ETC. A.C. PAVEMENT
13' 11' AND BASE
NOT TO SCALE ON PLAN
* PORTIONS OF STORM DRAIN IN PRIVA TE DRIVE 'A' AND STORM DRAIN IN PRIVATE DRIVES 'B' AND
'c' SHALL BE PUBLIC. PORTIONS OF STORM DRAIN IN PRIVATE DRIVE 'A' SHALL BE PRiVA TE AND
A 20' PRiVA TE STORM DRAIN EASEMENT SHALL BE PROVIDED TO THE LA. COSTA RIDGE HOA.
PROPERTY
LINE
(5' MIN. *)
3'*/5'
PRIVATE LOCAL DRIVES
PRIVATE STREETS '~", "B" AND "G"
"LIVABLE STREET DESIGN" NTS
LOCAL STREET -DES/GN SPEED: 25 MPH
ACTUAL STRUCTURAL SECTION TO 8E DETERMINED BASED
ON THE "Ro VALUE TEST, APPROVED BY THE CITY ENGINEER
PROPERlY
LINE
(5' MIN_ *)
FACE OF DWELLING
,.---FA CE OF
DWELLING
3'* 5'
3' MIN.
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
RES, SUBTOTAL
RES. AVERAGE LOT AREA
RES. MAX LOT AREA
RES. MIN LOT AREA
APPROVED-
TIllS IS TIIB APPROVED TENTATIVE MAP/s1TB
PLAN PBR CONDmON NO. f, OF PLANNING
COMMISSION RESOLUTION N lH "I fLliI... tuft I
EnJin=rina Dept. • Date F Planning Dept. _ Date
P OPERTY LINE
(FENCE)
3' MIN.
3,843
3,930
4,220
4,076
3,870
4,280
4,466
3,999.
3,961
3,870
3,870
3,982
4,571
4,178
3,960
3,710
5,284
4,948
4,551
4,494
4,868
4,170
3,870
3,870
4,141 .
4,143
6,398
3,911
4,360
4,065
4,573
5,558
4,858
4,155
4,008
5,272
4,249
4,491
5,004
3,828
4,805
4,229.
237,948
4,490
6,398
. 3,710
PROPOSED PAD
v-~\~$. \1\\ === \\\\'=--\\\\ r;;.\ @"-~'i-'" ?"
5'* /7' FACE OF
DWELLING
0,,,-0 f;;?--
;$:' ~ VARIABLE SLOPE
(2: 1 MAX.) RETAINING
WALL
2' 3" 5' RETAINING WALL
*ALLOWED PER PACIFIC SOILS INC. SOILS LETTER DATED
. JAN-16-06. SEE SHEET 1 GENERAL DESIGN-SITE PLAN
NOTE # 18.
DRAINAGE SWALE DETAIL
NOT TO SCALE
PCR
TYPICAL CORNER LOT
SIGHT DISTANCE TRIANGLE
VEGETA TlON, SLOPE & ETC.)
SIGHT DISTANCE SETBACK
DRAINAGE SWALE DETAIL
RETAINING WALL REQLlIRED
NOT TO SCALE
PREPARED BY:
HUNSAKER
& ASSOCIA TIS
SAN DIEGO, INC
PLANNING 10179 Huennekens Street
ENGINEERING San Diego, Ca 92121
SURVEYING PH(856)558-4500' fX(658)556-1414
PROPOSED PAD
11\\=== \\\~\\\
"' -.' ' '""
PROPERTY LINE -SlOE YARD -
PLANTABLE AREA DETAIL
NTS
.
.
-• .;f
SHEET
2
OF
SLOPE EDGE BUILDING SETBACK INDEX
SCALE:: /" = 40'
11.67' 20.33'
H-24.6'
0.7 1
1
1
1
1
TOP OF SLOPE 1[11/
SETBACK ~
LINE OF SIGHT 'v LOT 16
1 PLAN 2
1 SPANISH
/
1
1
/---18.8' ACTUAL --1/
LOT 16 SETBACK*
TOP OF SLOPE SETBACK SECTION "A"-TYPICAL
SCALE: ,.' = 10'
NOTE: AS LONG AS A 17.2' MIN. OISTANCE
IS MAINTAINED, THE TOP OF SLOPE
SETBACK REQUIREMENTS ARE MET,
H-22.3'
0.7 1
TOP OF SLOPE 117
1
1
1
SETBACK ~ It',
LINE OF SIGHT 'v LOT 11
1 PLAN 2R
1 SPANISH
1--17.5' ACTUAL--f
LOT 11 SETBACK*
TOP OF SLOPE SETBACK SECTION "B"-TYPICAL
SCALE: 1" -1 0'
NOTE: AS LONG AS A 15.6' MIN. DISTANCE
IS MAINTAINED, THE TOP OF SLOPE
SETBACK REQUIREMENTS ARE MET.
I
SLOPE EDGE BUILDING SETBACK
SCALf: I" = 10'
17.67' 20.33' 19.67' 19.33'
ARCHITECTURAL PLANE DETAIL
SCALE: 1" = 20'
/
lI&A 3!512007
/
I
/
/
30' ACP RECLAIMED WA7FlI--
PER DWG ! 2D0-2
" "-"-'-
CT 05-13/CP 05-12
RECYCLED WATER METERflVG STATlDN ___ --\
\
LOT 7
1.4 AC
PROPOSED REClAIMED WATER MET£~~_
AND lATERAL (TIE TO EXISTING)
I
I
/
I
8' PVC REClAIMED WAW/---:'
PER OWG ! 397-30
ABANDONED 12" ACP !.'fC!:41MED--,!.
WATER PER OWG ! 200-2
I
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OT7
1.4AC
.... '\
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PER DWG! 368-28
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/
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./
./ ./
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./
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)
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I I
J I
I I
I I
I I
I /
/ /
/ /
/ /
/ /
/ /
/ /
/ /
1/11
I I I I
I I I I
II I I
II I I
I I I I
\ I I I
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \ \
\ \ \
\
\
\
\
\
\
\
\
\
\
\
~-,ro' ACP REClAIMED WATER
PER DWG ! 358-2B
~-12'" ACP RECLAIMED WATER
AS SHOWN ON DWG ! 358-2B
__ r---PORTION OF RSF RD
PREVlOUSL Y DEDICATED
PER FINAL MAP 14838
\
\
\
\
\
\
\
\
\
\
\
\
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\
\
\
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/ / / . / /
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60 0 60 12.0 ~~~~180 ~~~i~lIiBIIiil= i APPROVED
1HfS IS TIlil APPROV!ID TilI'i.TATI,VE'MAPISI'I'If
PLAN PI*CONDmON NO. =~ b,;::--_ 9~~5~OOIIIrG
COMMISSION RESOLUTION "71~'--'-'~' SCALE I' -60'
I I
I I
I I I ,
LOTTING DETAIL
SCALE: 1" -60'
PREPARED BY:
•: . ,
i
~.""",,~ .... =~
HUNSAKER
& ASSOCIATES
SAN DIEGO, INC.
PLANNING 10179 Huennekens Street
ENGINEERINC San Diego, Ca 92121
SURVEYING PH(858)55B4500· fX(858)55B·1414
TENTATIVE MAP/CONDOMINIUM PERMIT
LA COSTA RIDGE
NEIGHBORHOOD 2.6
VILLAGES OF LA COSTA
City Of Carlsbad, California
SHEET
3
OF
6
R,\0459\&Pln\ TM Sht 3.dwgClJul-12-2006,08,58
<0 ::! I -~
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/I = 1/1/ -11/1 1...--1-1111
~ 48' 1
~ <ci
1 _____ I"-
36'STORM~
DRAIN V
SECTIONE-E
PROPOSED WALL AND EXISTING STORM DRAIN
. ! r--J
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PROPOSED
ANr/
;
"
~~:':7'--' ~ ,'''. '. ,; 8" PVC
./-RER DWG ~4
I
NTS
.,
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\
>, ~ , ,~
// \. //
/
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L. 4 1~
PER
36" RCP ~Th~,
PER nWI7(c·d/ LU,U-.
" RCf;' STORM,n~Wfi~=:--"'tM--'i>:; -owe # 200-2 :
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ABANDONED \122~" :tr:J1[~£j~~V-f; WATER\PER ~
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./ PER DWG # 2054-2 I'
/ I!! I f r ~ , i .. ! I / ~ , I J \ , ' I! l ,I \
",; 24" RCP STORM
'.
'I' I RIP-RAP PER
/! r I r~ ~E,~EMOVEP/
STORM DRAIN INLET PER ~""'---r~-~".-, .. / 200.-2 TO BE REMOVED,
i
!
/
' ... WITH CURB, AND PIPE
IN PLACE (SLURRY FILL)
, ,
"
24" Rep STORM DR~/N -+--<:1.1.
PER DWG # 200.-2 I
\ ABANDo.NED IN PLAGE
,(SLURRY FILL)'
SEE SHEET 5 NOTE:
H&A 3!5!2007
CT 05-13/CP 05-12
---w-
!
" ACP RECLAIMED WATER
DWG # 368-2B
~~# 368-2B ,
!
/1 ,/ I ". --.-~--
! I
/ !
x ",
I .Y-R--,F;6'·"-I<r:'A STORM DRAIN-. .
rum' 'I.-I3/V7)WG # Jo'8.~2B
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/
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/
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54" RCP STORM DRAIN I ."-
,
/
x
, AS SHOWN ON DWe # 368-2B~"
\," 1 \ \,. .',.' \' 1" ---0'--
\ ~ \ \ • ' ~, r I'
~~72" ACP RECLAIMED WATER
AS SHOWN ON DWG # 368-28
i~~+1\:'-EXISTING SEWER MH #4
£I 325.4 PER SMCWD
DWG NO. 52o.7-3A , . ,
,AI--'M-lM--CONNECT TO EXISTING
8" VCP SEWER
! /
"
y, ,/ ,
/ \",' \\ ~,/" ,,/ --;-i
, 84" RCP STORM DRAIN _ " '7'/\/ ./ "
',AS SHOWN ON DWG # 368-2B>,>'}\ ;:"
.!"'C' :,-.'.-< -,"~..--"". ,
\.\\---"--iPROPo.SED 30' PUBLIC EASEMENT Fo.R
SEWER AND STORM DRAIN
\.\">'~ -,\./~ \\\~<'"-", '\\'.~'.' I
!.k-''J.-\\,'' ____ ~ 36" RCP STORM DRAIN., i ' ;"-", /
~~~~V AS SHo.WN ON DWG # 368-28 '</ .. <.
o
i
84" WING TYPE HEADWALL & /, " ,
MAJOR DRAINAGE CHANNEL / /\ \ ,
.' "AS SHOWN ON DWG # 368-2B,/·.
40
!
SCALE 1'~ 40'
. !
" ,-
!
" "
/
i~~Q~~~tf~~[~\~ -WIDE TRAIL, PRo.Po.SED IMPROVEMENTS TO. CONNECT TO EXISTING RANCHO. SANTA
'4il~I0Y\W?Ji;il FE ROAD TRAIL ( /-,' !~~~~~~~~l~~\~~~" WING TYPE HEADWALL &/ '/'-'"
HUNSAKER
& ASSOCIATES
SAN Of EGO, INC.
PLANNING 10179 Huennekens Street
ENGINEERING San Diego, Ca 92121
FOR LGTTlNG INFO.. SEE SHEET 2 LGTTlNG DETAIL SURVEYING PH(858)5S84S00· FX(858)SSa.1414
MlNo.R DRAINAGE CHANNEL, ' \ /
AS SHOWN ON DWG # 368-2B""
TENTATIVE MAP/CONDOMINIUM PERMIT
LA COSTA RIDGE
NEIGHBORHOOD 2.6
VILLAGES OF LA COSTA
City Of Carlsbad, California
120
i
.-.
SHEET
4
OF
6
R,\Q459\J>Pln\ TM Sht 4.clwg[]Jut-12-20Q6,09,Q4
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'I 'I RIP-RAP PER owe # 200-2 , " ) TO BE REMOVED <-, -!i-,,_
fl I \ I ,",jiliN
I • " ~ / !,
STORM' DRAIN INLET PER Dwe #
200-2 TO BE REMOVED, REPLACED
_' WITH CURB, AND PIPE ABANDONED
IN PLACE (SLURRY FILL)
I J
IVIA.lPtJOtJ1~tRY
24" RCP STORM DRAIN -f--(f;(
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owe # 200-2
ABANDONED IN PLACE
\(SLURRY FILL) '" ~,\ \
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12" STEEL WATER ~A''N'-TtfflmI1LJ1-ILJi.J r-c' __ ,,:P_'£,7.R~ __ 7'q .we '# 200'-2'
PROPOSED PRIVATE 48" STORM
WITHIN 20' PRIVATE
MAINTAINED BY LC 2.6 HOA '-, .
" , " i ' "-,
EXISTING FIRE HYDRANT PER
owe # 200-2 TO BE RELOCATED , ,
, '-,[(ROPOSED PlRtJ ,H)<'()R)IY\J7748@r;t~f,4!/-t:-~~{;J
\ / /
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EXISTING 48" STORM
PER DWG # 397-3, I
, I '
"STREd LIGHT :.~~~~~~ PER DWG # 200-i'
f )\ // ,~~~~~~~ ,18" RCP STORM DRAIN ;<;
PER DWG # 397-3
-\ /
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[XISTING 8" SEWER~~~,*~~,
PER DWe # 397-3 1;
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llq
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54" RCP STORM DRAIN J
AS SHOWN ON Dwe # 368-28 ;'
1\' \ /' \ . ' \, , "\ , ' " , --4-\J'-12" ACP RECLAIMED WATER ' '",
AS SHOWN ON owe # 368-28 v
/~ x
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AS SHOWN ON DWG # 368-28
/ / / v-
J A
\'-\\--+-1~ EXISTING SEWER MH #4
£/ 325,4 PER SMCWD
DWG NO, 5207-3A
TO EXISTING
VCP SEWER ,
I '
3.1.' 5
/ /
~c, IJLf" RCP STORM DRAIN , I ,-;~~, /
,AS SHOWN ON owe I 368-28' /',' ~;
\.v" / .'--\./
~-4F)ROPO~)ED 30' ?UBUC EASEMENT FOR
SEWER AND STCRM DRAIN
J '\\':-\ \' ~"'.-" J <, ' ~ ::::t1~ __ ~-36" RCP STORM DRAIN, I
AS SHOWN ON DWG I 368-28 'N'
\7
84" WING TYPE HEADWALL &
MAJOR DRAINAGE CHANNEL
3AS SHOWN ON DWG # 368-28
,
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~~~;~~~~~~1~\-~~;~~~ TRAIL, PROPOSED IMPROVEMENTS TO CONNECT TO EXISTING RANCHO SANTA
FE ROAD TRAIL
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\ ~f\llt\4\\~~-2~~~~~;~ \ ----\ " \ "' \,X\NI\'PI~[\\ PROPOSED "cfrY -W/[)?~ '\ : .' "/
TRAIL & EASEMENT \ " ':
, ' " \ ------\ '\, \\---'tl~t-ltt-f--~~~::::>r\\-'-PROP. 'F -TYPE CATCH BASIN \' ' ", ~ /~ ,j
\~N+::::A-4~~----'fr~~~-',' PROP, INLET FILTER UNDER SIDE'fALK DRAIN IPRIVATELY MAINTAIf:JED}) , /
M..l.:,~W:'\-~~4~rrrPROP, STORM WATER TREATMENT UNIT (f,RlvATELY MAINTAINEDf'!~ j //
--
I
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100-YEAR FLOODPLAIN "";, '.' f 7/ 2/Mi'iS~,-f' PER FLOOD INSURANCE \; :, ' ~ ,",' " (/ ,/, /
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EXISTING 100 Y&IR FLOOD LIMITS
100-YW? FLOODPlAIN
PER FLOOD INSURANCE
RATE MAP (RRM)
PANEL 10!)1 OF 2375
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REVESTMENr OF ieCESS
RIGHTS REQUIRED AI'
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I~~~~t~~~ ~~J~~~g:~~i;r.~O;jS4~N DIEGO COUNTY DRAINAGE MAINTENANCE D/.J1,'!U~>I'ENl 1981 AS FILE NO 81-117297, OR.
ON PLAN
~~~~~~;'p1:~~~~~T~0 SAN MARCOS COUNTY WATER DISTRICT RECORDED JULY 29, 1958, AS DOCUMENT
REMAIN
C~(~i~·1~~~1~~;Z;~~f9fCf.0UNTY OF SAN DIEGO BY DOCUMENT r, 0 R. PORTION TO BE VACATED
'~Jf,IVFY 454) GRANTED TO THE COUNTY OF SAN
BY DOCUMENT RECORDED APRIL 7, 1966
FOR PUBLIC TRAIL DEDICATED ON MAP 14838.
BE VACATED AND RELOCA TED.
ON MAP 14838 TO THE CITY OF CARLSBAD TO BE
.~'$;.~~::J;e~~1J!~tt:'·~~f HIGHWAY GRANTED TO CITY OF CARLSBAD BY DOCUMENT. FILE NO. 81-126304, OR. TO REMAIN I (.
~~!~~~~~~~~~~~~~~~ AND HIGHWAY GRANTED TO CITY OF CARLSBAD BY DOCUMENT It AS HLE NO 81-126307. 0 R. TO REMAIN
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DELTA RADIUS LENGTH
28'13'49" 20.00 9.85
62'13'21 " 3350 36.38
90'00'24" 25.00 39.27
31'47'07" 51800 287.36
07'19'48" 470.00 60.13
BEARING DISTANCE
N 66'05'00"W(R) 60.00'
N 35'2$'54 ''W 55.00'
N 52'28'36''W(R) 12.00' .
N 23'05'37''W 30.45'
N 25"56'11 ''W 60.00'
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HUNSAKER
& ASSOCIATES
SAN D!ECo, INC
LA COSTA RIDGE
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SHEET
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SAN DIEGO. INC
PLANNING 101i'"J Huemekens Street
ENQNEERlNG San Diego. Ca 92121
SUlVEYlNC PH{8S8)558-4500-FX(858)558-1414
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