Loading...
HomeMy WebLinkAboutPD 2020-0047; HARLE RESIDENCE; HYDROLOGY STUDY; 2021-06-29CLW No.: 1366D June 29, 2021 Hydrology Study 4547 Cove Drive Carlsbad, CA 92008 APN: 207-150-15 GR2020-0033 DWG 527-7A Prepared For: KWD Holdings, LLC 265 Via Del Monte Oceanside, CA 92058 (619) 733-8379 Prepared By: Civil Landworks Corporation 110 Copperwood Way Suite P, Oceanside CA, USA 92058 760-908-8745 Drainage Study 4547 Cove Drive Carlsbad, CA 92008 Page 1 TABLE OF CONTENTS Section INTRODUCTION .......................................................................................................................... 2  DESIGN CRITERIA AND ASSUMPTIONS ................................................................................ 2  DISCUSSION ................................................................................................................................. 3  Existing Conditions ..................................................................................................................... 3  Proposed Conditions ................................................................................................................... 4  ANALYSIS and CONCLUSION ................................................................................................... 4  DECLARATION OF RESPONSIBLE CHARGE ......................................................................... 5  REFERENCES ............................................................................................................................... 6  ATTACHMENTS ATTACHMENT 1 – LOCATION MAP ATTACHMENT 2 – PRECIPITATION MAPS AND SOIL MAP ATTACHMENT 3 – EXISTING HYDROLOGY CALCULATIONS ATTACHMENT 4 – PROPOSED HYDROLOGY CALCULATIONS ATTACHMENT 4B – PROPOSED CIVILD CALCULATIONS ATTACHMENT 5 – HYDROLOGY MAP – EXISTING CONDITIONS ATTACHMENT 6 – HYDROLOGY MAP – PROPOSED CONDITIONS Drainage Study 4547 Cove Drive Carlsbad, CA 92008 Page 2 INTRODUCTION The purpose of this study is to determine storm water runoff and site drainage of a 100-year storm event for a proposed single-family home located at 4547 Cove Drive, Carlsbad, CA 92008. The project area is approximately 4,676 square feet or 0.107 acres. The parcel in question is currently vacant. In addition to the single-family home, this development also proposes other site development features. Sewer and water services, storm drains, a new driveway, concrete pavers, and site landscaping are all proposed with this development. The existing site is relatively flat. The elevations range from 9 to 14 feet above mean sea level. There are no slopes on the existing site that are greater than 25%. See Attachment 1 for the Site Location and Vicinity Maps. DESIGN CRITERIA AND ASSUMPTIONS 1. Per NRCS soil across the site are all Type D. See Attachment 2. 2. Per the San Diego County Hydrology Manual (2003) Rainfall Isopluvial Map (See Attachment 2):  100 Year Rainfall Event – 6 hours P6 = 2.7 inches/hour  100 Year Rainfall Event – 24 hours P24 = 4.5 inches/hour 3. Per the San Diego County Hydrology Manual (2003) Table 3.1: 4. Hydrologic calculations were performed using the CIVILCAD/CIVILDESIGN Engineering software version 7.6 per methods as outlined within the San Diego Hydrology Manual (2003). The hydrology calculations for proposed and existing conditions may be found within the hydrology calculations section of this report. Drainage Study 4547 Cove Drive Carlsbad, CA 92008 Page 3 DISCUSSION EXISTING CONDITIONS The existing site is currently undeveloped. The vacant lot has been cleared and grubbed multiple times, but vegetation grows onsite. Currently, the site has one hydrologic drainage basin. The basin, EX-1, flows north, away from Cove Drive, and enters Agua Hedionda Lagoon. All flows are above ground as no storm drain structures exist onsite. Below is a summary of pre-development criteria for the subject property: TABLE 1: 100 YEAR PRE-DEVELOPMENT CRITERIA Node C Tc (Min.) Area (acre) Q100 (cfs) V100 (fps) 102 0.35 8.43 0.107 0.190 Sheet Flow TOTAL 0.107 0.190 Drainage Study 4547 Cove Drive Carlsbad, CA 92008 Page 4 PROPOSED CONDITIONS The site proposes a single-family home, utilities, driveway, storm drains, and impervious concrete pavers. The impervious area is increasing with this development because the site is currently vacant. All efforts will be made to reduce the impact of this development. Because of the limited lot space, storm water basin has been provided to treat the 85th percentile storm. However, some storm water detention will be achieved with the use of the BMP basin. Details of the basin can be found in the grading plan and Priority SWQMP. The development will maintain the same drainage characteristics. Therefore, all storm water will discharge directly to the Agua Hedionda Lagoon. The proposed hydrologic conditions are summarized below: TABLE 2: 100 YEAR POST-DEVELOPMENT Node C Tc (Min.) Area (acre) Q100 (cfs) V100 (fps) 105 0.83 5.10 0.107 0.525 3.89 TOTAL 0.107 0.525 The proposed development will increase peak flow rates by 0.335 cfs. ANALYSIS AND CONCLUSION A hydrologic analysis has been conducted for the subject for a 100 year storm event. The peak flow offsite will increase by 0.335 cfs with this development. This increase is very small; however, it is expected and reasonable. The existing site is vacant and therefore existing flows are minimal. This project does incorporate a LID biofiltration basin is sized per the Priority SWQMP to treat the 85th percentile storm. A portion of the 100-year storm will be detained through the basin. Since the site discharges directly into the lagoon, it is anticipated there is no adverse effect on downstream erosion. However, the site will employ rip rap energy dissipater at all discharge location and will be sized to ensure no erosive velocities downstream. Drainage Study 4547 Cove Drive Carlsbad, CA 92008 Page 5 DECLARATION OF RESPONSIBLE CHARGE I, hereby declare that I am the Engineer of Work for this project, that I have exercised responsible charge over the design of the project as defined in section 6703 of the business and professions code, and that the design is consistent with current standards. I understand that the check of project drawings and specifications by the County of San Diego and City of Carlsbad is confined to a review only and does not relieve me, as Engineer of Work of my responsibility for project design. ENGINEER OF WORK: Civil Landworks Corporation 110 Copperwood Way Suite P, Oceanside CA, USA 92058 ______________________________ 6-29-2021 David V. Caron Date R.C.E. 70066 Exp. 9-30-22 Drainage Study 4547 Cove Drive Carlsbad, CA 92008 Page 6 REFERENCES 1. City of Carlsbad Storm Water Manual 2008. 2. San Diego County Hydrology Manual (June 2003). 3. San Diego County Drainage Design Manual (July 2005). 4. Web Soil Survey, San Diego Area, California. United States Natural Resource Conservation Service. 5. CIVILCADD/CIVILDESIGN Engineering Software, © 1991-2006 Version 7.6. San Diego County Control Division 2003 Manual Rational Hydrology Study. CLW No.: 1366D October 6, 2020 ATTACHMENT 1 LOCATION MAP CLW No.: 1366D October 6, 2020 ATTACHMENT 2 PRECIPITATION MAPS AND SOIL MAP Hydrologic Soil Group—San Diego County Area, California (1366D - Cove) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/5/2020 Page 1 of 4366744036674603667480366750036675203667540366744036674603667480366750036675203667540469640469660469680469700469720469740469760469780469800469820 469640 469660 469680 469700 469720 469740 469760 469780 469800 469820 33° 8' 46'' N 117° 19' 31'' W33° 8' 46'' N117° 19' 24'' W33° 8' 42'' N 117° 19' 31'' W33° 8' 42'' N 117° 19' 24'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 11N WGS84 0 40 80 160 240 Feet 0 10 20 40 60 Meters Map Scale: 1:850 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: San Diego County Area, California Survey Area Data: Version 15, May 27, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jan 23, 2020—Feb 13, 2020 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Hydrologic Soil Group—San Diego County Area, California (1366D - Cove) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/5/2020 Page 2 of 4 Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI LfC Las Flores-Urban land complex, 2 to 9 percent slopes D 1.7 48.7% LG-W Lagoon water 1.2 34.8% MlE Marina loamy coarse sand, 9 to 30 percent slopes B 0.6 16.5% Totals for Area of Interest 3.4 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Hydrologic Soil Group—San Diego County Area, California 1366D - Cove Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/5/2020 Page 3 of 4 Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Hydrologic Soil Group—San Diego County Area, California 1366D - Cove Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/5/2020 Page 4 of 4 CLW No.: 1366D October 6, 2020 ATTACHMENT 3 EXISTING HYDROLOGY CALCULATIONS AREA CALCULATIONSEXISTING HYDROLOGIC BASINSBasin Soil Type Pervious Total Total Natural Impervious Landscape Pervious % C Value % Fraction C Value C ValueRunoffAreaAreaPavers Impervious Weighted of Site Fraction FinalCoefficient SFAcres SF SF SF SFEX-1 A 0.20 0 0.000 0 0 0 0 - 0.20 0% 0.00 - B 0.25 0 0.000 0 0 0 0 - 0.25 0% 0.00 - C 0.30 0 0.000 0 0 0 0 - 0.30 0% 0.00 - D 0.35 4,676 0.107 4,676 0 0 0 - 0.35 100% 0.35 - Total - 4,676 0.107 4,676 0 0 0 0.00% - 100% 0.350.350 EX1 San Diego County Rational Hydrology Program CIVILCADD/CIVILDESIGN Engineering Software,(c)1991‐2012 Version 7.9 Rational method hydrology  program based on San Diego County Flood Control Division 2003 hydrology manual Rational Hydrology Study        Date: 10/06/20 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 6313 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is   100.0 English (in‐lb) input data Units used Map data precipitation entered: 6 hour,  precipitation(inches) =  2.700 24 hour precipitation(inches) =  4.500 P6/P24 =    60.0% San Diego hydrology manual 'C' values used ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      101.000 to Point/Station      102.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Decimal fraction soil group A = 0.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 1.000 [UNDISTURBED NATURAL TERRAIN                 ]  (Permanent Open Space   )  Impervious value, Ai = 0.000 Sub‐Area C Value = 0.350 Initial subarea total flow distance  =  121.000(Ft.) Highest elevation =   13.700(Ft.) Lowest elevation =    9.000(Ft.) Elevation difference =    4.700(Ft.) Slope =  3.884 % Top of Initial Area Slope adjusted by User to  4.100 % INITIAL AREA TIME OF CONCENTRATION CALCULATIONS: The maximum overland flow distance is 100.00 (Ft) for the top area slope value of   4.10 %, in a development type of  Permanent Open Space    In Accordance With Figure 3‐3  Initial Area Time of Concentration =   8.43 minutes TC = [1.8*(1.1‐C)*distance(Ft.)^.5)/(% slope^(1/3)] TC = [1.8*(1.1‐0.3500)*( 100.000^.5)/(   4.100^(1/3)]=   8.43 Rainfall intensity (I) =      5.077(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.350 Subarea runoff =      0.190(CFS) Total initial stream area =        0.107(Ac.) End of computations, total study area =           0.107 (Ac.) CLW No.: 1366D October 6, 2020 ATTACHMENT 4 PROPOSED HYDROLOGY CALCULATIONS AREA CALCULATIONSPROPOSED HYDROLOGIC BASINSBasin Soil TypePervious Total Total Natural Impervious Landscape Pervious % C Value % Fraction C Value C ValueRunoffAreaAreaPavers Impervious Weighted of Site Fraction FinalCoefficientSFAcresSF SF SF SFPR-1A A 0.20 0 0.000 0 0 0 0 - 0.02 0% 0.00 - B 0.25 0 0.000 0 0 0 0 - 0.03 0% 0.00 - C 0.30 0 0.000 0 0 0 0 - 0.04 0% 0.00 - D 0.35 2,879 0.066 0 2,521 358 0 - 0.04 100% 0.04 - Total - 2,879 0.066 0 2,521 358 0 87.57% - 100% 0.040.832Basin Soil TypePervious Total Total Natural Impervious Landscape Pervious % C Value % Fraction C Value C ValueRunoffAreaAreaPavers Impervious Weighted of Site Fraction FinalCoefficientSFAcresSF SF SF SFPR-1B A 0.20 0 0.000 0 0 0 0 - 0.05 0% 0.00 - B 0.25 0 0.000 0 0 0 0 - 0.07 0% 0.00 - C 0.30 0 0.000 0 0 0 0 - 0.08 0% 0.00 - D 0.35 1,142 0.026 0 833 309 0 - 0.09 100% 0.09 - Total - 1,142 0.026 0 833 309 0 72.94% - 100% 0.090.751Basin Soil TypePervious Total Total Natural Impervious Landscape Pervious % C Value % Fraction C Value C ValueRunoffAreaAreaPavers Impervious Weighted of Site Fraction FinalCoefficientSFAcresSF SF SF SFPR-2A A 0.20 0 0.000 0 0 0 0 - 0.20 0% 0.00 - B 0.25 0 0.000 0 0 0 0 - 0.25 0% 0.00 - C 0.30 0 0.000 0 0 0 0 - 0.30 0% 0.00 - D 0.35 655 0.015 0 0 655 0 - 0.35 100% 0.35 - Total - 655 0.015 0 0 655 0 0.00% - 100% 0.350.350 San Diego County Rational Hydrology Program CIVILCADD/CIVILDESIGN Engineering Software,(c)1991‐2012 Version 7.9 Rational method hydrology  program based on San Diego County Flood Control Division 2003 hydrology manual Rational Hydrology Study        Date: 06/29/21 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 6313 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is   100.0 English (in‐lb) input data Units used Map data precipitation entered: 6 hour,  precipitation(inches) =  2.700 24 hour precipitation(inches) =  4.500 P6/P24 =    60.0% San Diego hydrology manual 'C' values used ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      101.000 to Point/Station      102.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Decimal fraction soil group A = 0.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 1.000 [HIGH DENSITY RESIDENTIAL                    ]  (43.0 DU/A or Less      )  Impervious value, Ai = 0.800 Sub‐Area C Value = 0.790 Initial subarea total flow distance  =   33.000(Ft.) Highest elevation =   14.240(Ft.) Lowest elevation =   13.520(Ft.) Elevation difference =    0.720(Ft.) Slope =  2.182 % Top of Initial Area Slope adjusted by User to  1.552 % INITIAL AREA TIME OF CONCENTRATION CALCULATIONS: The maximum overland flow distance is 75.00 (Ft) for the top area slope value of   1.55 %, in a development type of  43.0 DU/A or Less       In Accordance With Figure 3‐3  Initial Area Time of Concentration =   4.17 minutes TC = [1.8*(1.1‐C)*distance(Ft.)^.5)/(% slope^(1/3)] TC = [1.8*(1.1‐0.7900)*(  75.000^.5)/(   1.552^(1/3)]=   4.17 Calculated TC of    4.174 minutes is less than 5 minutes,  resetting TC to 5.0 minutes for rainfall intensity calculations Rainfall intensity (I) =      7.114(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.790 Subarea runoff =      0.146(CFS) Total initial stream area =        0.026(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      102.000 to Point/Station      103.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =    12.710(Ft.) Downstream point/station elevation =    12.350(Ft.) Pipe length  =    72.00(Ft.) Slope =   0.0050  Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     0.146(CFS) Given pipe size =      6.00(In.) Calculated individual pipe flow  =     0.146(CFS) Normal flow depth in pipe =    2.51(In.) Flow top width inside pipe =    5.92(In.) Critical Depth =    2.28(In.) Pipe flow velocity =      1.86(Ft/s) Travel time through pipe =    0.64 min. Time of concentration (TC) =     4.82 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      102.000 to Point/Station      103.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1  Stream flow area =      0.026(Ac.) Runoff from this stream =      0.146(CFS) Time of concentration =    4.82 min. Rainfall intensity =     7.114(In/Hr) Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      201.000 to Point/Station      202.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Decimal fraction soil group A = 0.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 1.000 [COMMERCIAL area type                        ]  (General Commercial    )  Impervious value, Ai = 0.850 Sub‐Area C Value = 0.820 Initial subarea total flow distance  =   10.000(Ft.) Highest elevation =   22.000(Ft.) Lowest elevation =   12.350(Ft.) Elevation difference =    9.650(Ft.) Slope = 96.500 % Top of Initial Area Slope adjusted by User to 89.000 % INITIAL AREA TIME OF CONCENTRATION CALCULATIONS: The maximum overland flow distance is 100.00 (Ft) for the top area slope value of  89.00 %, in a development type of  General Commercial     In Accordance With Figure 3‐3  Initial Area Time of Concentration =   1.13 minutes TC = [1.8*(1.1‐C)*distance(Ft.)^.5)/(% slope^(1/3)] TC = [1.8*(1.1‐0.8200)*( 100.000^.5)/(  89.000^(1/3)]=   1.13 Calculated TC of    1.129 minutes is less than 5 minutes,  resetting TC to 5.0 minutes for rainfall intensity calculations Rainfall intensity (I) =      7.114(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.820 Subarea runoff =      0.385(CFS) Total initial stream area =        0.066(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      201.000 to Point/Station      202.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2  Stream flow area =      0.066(Ac.) Runoff from this stream =      0.385(CFS) Time of concentration =    1.13 min. Rainfall intensity =     7.114(In/Hr) Summary of stream data: Stream   Flow rate      TC            Rainfall Intensity  No.       (CFS)       (min)                 (In/Hr) 1        0.146      4.82          7.114 2        0.385      1.13          7.114 Qmax(1) =    1.000 *    1.000 *     0.146) +    1.000 *    1.000 *     0.385) + =       0.531 Qmax(2) =    1.000 *    0.234 *     0.146) +    1.000 *    1.000 *     0.385) + =       0.419 Total of 2 main streams to confluence: Flow rates before confluence point:        0.146       0.385 Maximum flow rates at confluence using above data:         0.531        0.419 Area of streams before confluence:         0.026        0.066 Results of confluence: Total flow rate =      0.531(CFS) Time of concentration =     4.818 min. Effective stream area after confluence  =      0.092(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      104.000 to Point/Station      105.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =     9.270(Ft.) Downstream point/station elevation =     9.000(Ft.) Pipe length  =    17.00(Ft.) Slope =   0.0159  Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     0.531(CFS) Given pipe size =      6.00(In.) Calculated individual pipe flow  =     0.531(CFS) Normal flow depth in pipe =    3.88(In.) Flow top width inside pipe =    5.74(In.) Critical Depth =    4.46(In.) Pipe flow velocity =      3.95(Ft/s) Travel time through pipe =    0.07 min. Time of concentration (TC) =     4.89 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      104.000 to Point/Station      105.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1  Stream flow area =      0.092(Ac.) Runoff from this stream =      0.531(CFS) Time of concentration =    4.89 min. Rainfall intensity =     7.114(In/Hr) Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      106.000 to Point/Station      105.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Decimal fraction soil group A = 0.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 1.000 [UNDISTURBED NATURAL TERRAIN                 ]  (Permanent Open Space   )  Impervious value, Ai = 0.000 Sub‐Area C Value = 0.350 Initial subarea total flow distance  =   17.000(Ft.) Highest elevation =   13.080(Ft.) Lowest elevation =    9.000(Ft.) Elevation difference =    4.080(Ft.) Slope = 24.000 % Top of Initial Area Slope adjusted by User to 20.813 % INITIAL AREA TIME OF CONCENTRATION CALCULATIONS: The maximum overland flow distance is 100.00 (Ft) for the top area slope value of  20.81 %, in a development type of  Permanent Open Space    In Accordance With Figure 3‐3  Initial Area Time of Concentration =   4.91 minutes TC = [1.8*(1.1‐C)*distance(Ft.)^.5)/(% slope^(1/3)] TC = [1.8*(1.1‐0.3500)*( 100.000^.5)/(  20.813^(1/3)]=   4.91 Calculated TC of    4.908 minutes is less than 5 minutes,  resetting TC to 5.0 minutes for rainfall intensity calculations Rainfall intensity (I) =      7.114(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.350 Subarea runoff =      0.037(CFS) Total initial stream area =        0.015(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      106.000 to Point/Station      105.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2  Stream flow area =      0.015(Ac.) Runoff from this stream =      0.037(CFS) Time of concentration =    4.91 min. Rainfall intensity =     7.114(In/Hr) Summary of stream data: Stream   Flow rate      TC            Rainfall Intensity  No.       (CFS)       (min)                 (In/Hr) 1        0.531      4.89          7.114 2        0.037      4.91          7.114 Qmax(1) =    1.000 *    1.000 *     0.531) +    1.000 *    0.996 *     0.037) + =       0.568 Qmax(2) =    1.000 *    1.000 *     0.531) +    1.000 *    1.000 *     0.037) + =       0.568 Total of 2 main streams to confluence: Flow rates before confluence point:        0.531       0.037 Maximum flow rates at confluence using above data:         0.568        0.568 Area of streams before confluence:         0.092        0.015 Results of confluence: Total flow rate =      0.568(CFS) Time of concentration =     4.908 min. Effective stream area after confluence  =      0.107(Ac.) End of computations, total study area =           0.107 (Ac.) Stage Storage Capacity CaculationsQout = AV = A acres * 43560 sf/Acre (infiltration rate in/hr) * 1ft/12in (1 hr/3600 sec)Orifice Flow: Q = C * A * sqrt(2gh)g= 32.20 ft/sec²C= 0.60Orifice-1No. of openings 1Elevation 9.27diameter 6 inches 0.50 ft A=(π*D²)/4A= 0.20 sfGrate Inlet-OverflowElevation 12.60Cw 3.00L 2.0 ftW 2.0 ft Lw=2*(L+W)Lw 8 sfStage StorageArea ofEffective HeadQ cfsEffective HeadQ cfsQ totalWater Depth (ft)Volume (cf)Area (Ac.ft)Infiltration (ft)Q infiltrationOrifice-1Orifice-1Grate InletGrate Inlet9.35 0 0.000 N/A 0.000 N/A 0.00 N/A 0.00 0.00012.10 40 0.001 N/A 0.000 2.58 1.52 N/A 0.00 1.51912.60 90 0.002 N/A 0.000 3.08 1.66 N/A 0.00 1.65913.10 139 0.003 N/A 0.000 3.58 1.79 0.50 8.49 10.27 San Diego County Rational Hydrology Program CIVILCADD/CIVILDESIGN Engineering Software,(c)1991‐2012 Version 7.9 Rational method hydrology  program based on San Diego County Flood Control Division 2003 hydrology manual Rational Hydrology Study        Date: 06/29/21 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 6313 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is   100.0 English (in‐lb) input data Units used Map data precipitation entered: 6 hour,  precipitation(inches) =  2.700 24 hour precipitation(inches) =  4.500 P6/P24 =    60.0% San Diego hydrology manual 'C' values used ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      101.000 to Point/Station      102.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Decimal fraction soil group A = 0.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 1.000 [HIGH DENSITY RESIDENTIAL                    ]  (43.0 DU/A or Less      )  Impervious value, Ai = 0.800 Sub‐Area C Value = 0.790 Initial subarea total flow distance  =   33.000(Ft.) Highest elevation =   14.240(Ft.) Lowest elevation =   13.520(Ft.) Elevation difference =    0.720(Ft.) Slope =  2.182 % Top of Initial Area Slope adjusted by User to  1.552 % INITIAL AREA TIME OF CONCENTRATION CALCULATIONS: The maximum overland flow distance is 75.00 (Ft) for the top area slope value of   1.55 %, in a development type of  43.0 DU/A or Less       In Accordance With Figure 3‐3  Initial Area Time of Concentration =   4.17 minutes TC = [1.8*(1.1‐C)*distance(Ft.)^.5)/(% slope^(1/3)] TC = [1.8*(1.1‐0.7900)*(  75.000^.5)/(   1.552^(1/3)]=   4.17 Calculated TC of    4.174 minutes is less than 5 minutes,  resetting TC to 5.0 minutes for rainfall intensity calculations Rainfall intensity (I) =      7.114(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.790 Subarea runoff =      0.146(CFS) Total initial stream area =        0.026(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      102.000 to Point/Station      103.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =    12.710(Ft.) Downstream point/station elevation =    12.350(Ft.) Pipe length  =    72.00(Ft.) Slope =   0.0050  Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     0.146(CFS) Given pipe size =      6.00(In.) Calculated individual pipe flow  =     0.146(CFS) Normal flow depth in pipe =    2.51(In.) Flow top width inside pipe =    5.92(In.) Critical Depth =    2.28(In.) Pipe flow velocity =      1.86(Ft/s) Travel time through pipe =    0.64 min. Time of concentration (TC) =     4.82 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      102.000 to Point/Station      103.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1  Stream flow area =      0.026(Ac.) Runoff from this stream =      0.146(CFS) Time of concentration =    4.82 min. Rainfall intensity =     7.114(In/Hr) Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      201.000 to Point/Station      202.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Decimal fraction soil group A = 0.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 1.000 [COMMERCIAL area type                        ]  (General Commercial    )  Impervious value, Ai = 0.850 Sub‐Area C Value = 0.820 Initial subarea total flow distance  =   10.000(Ft.) Highest elevation =   22.000(Ft.) Lowest elevation =   12.350(Ft.) Elevation difference =    9.650(Ft.) Slope = 96.500 % Top of Initial Area Slope adjusted by User to 89.000 % INITIAL AREA TIME OF CONCENTRATION CALCULATIONS: The maximum overland flow distance is 100.00 (Ft) for the top area slope value of  89.00 %, in a development type of  General Commercial     In Accordance With Figure 3‐3  Initial Area Time of Concentration =   1.13 minutes TC = [1.8*(1.1‐C)*distance(Ft.)^.5)/(% slope^(1/3)] TC = [1.8*(1.1‐0.8200)*( 100.000^.5)/(  89.000^(1/3)]=   1.13 Calculated TC of    1.129 minutes is less than 5 minutes,  resetting TC to 5.0 minutes for rainfall intensity calculations Rainfall intensity (I) =      7.114(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.820 Subarea runoff =      0.385(CFS) Total initial stream area =        0.066(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      201.000 to Point/Station      202.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2  Stream flow area =      0.066(Ac.) Runoff from this stream =      0.385(CFS) Time of concentration =    1.13 min. Rainfall intensity =     7.114(In/Hr) Summary of stream data: Stream   Flow rate      TC            Rainfall Intensity  No.       (CFS)       (min)                 (In/Hr) 1        0.146      4.82          7.114 2        0.385      1.13          7.114 Qmax(1) =    1.000 *    1.000 *     0.146) +    1.000 *    1.000 *     0.385) + =       0.531 Qmax(2) =    1.000 *    0.234 *     0.146) +    1.000 *    1.000 *     0.385) + =       0.419 Total of 2 main streams to confluence: Flow rates before confluence point:        0.146       0.385 Maximum flow rates at confluence using above data:         0.531        0.419 Area of streams before confluence:         0.026        0.066 Results of confluence: Total flow rate =      0.531(CFS) Time of concentration =     4.818 min. Effective stream area after confluence  =      0.092(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      104.000 to Point/Station      105.000 **** 6 HOUR HYDROGRAPH **** ______________________________________________________________________ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Hydrograph Data ‐ Section 6, San Diego County Hydrology manual, June 2003 Time of Concentration =   4.82 Basin Area =     0.09 Acres 6 Hour Rainfall =  2.700 Inches Runoff Coefficient =  0.812 Peak Discharge =     0.53 CFS      Time (Min)     Discharge (CFS)        0               0.000        4               0.012        8               0.012        12               0.012        16               0.012        20               0.013        24               0.013        28               0.013        32               0.013        36               0.013        40               0.013        44               0.014        48               0.014        52               0.014        56               0.014        60               0.014        64               0.014        68               0.015        72               0.015        76               0.015        80               0.015        84               0.016        88               0.016        92               0.016        96               0.016        100               0.017        104               0.017        108               0.017        112               0.018        116               0.018        120               0.018        124               0.019        128               0.019        132               0.020        136               0.020        140               0.021        144               0.021        148               0.022        152               0.022        156               0.023        160               0.024        164               0.025        168               0.025        172               0.026        176               0.027        180               0.028        184               0.029        188               0.031        192               0.032        196               0.034        200               0.036        204               0.039        208               0.041        212               0.045        216               0.048        220               0.055        224               0.059        228               0.073        232               0.083        236               0.121        240               0.171        244               0.531        248               0.097        252               0.065        256               0.051        260               0.043        264               0.037        268               0.033        272               0.030        276               0.028        280               0.026        284               0.024        288               0.023        292               0.021        296               0.020        300               0.019        304               0.019        308               0.018        312               0.017        316               0.017        320               0.016        324               0.015        328               0.015        332               0.015        336               0.014        340               0.014        344               0.013        348               0.013        352               0.013        356               0.012        360               0.012        364               0.012 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     6 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   1   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        0.1       0.3       0.4       0.5   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 0       0.0000      0.00  Q         |         |         |         |      0+ 1       0.0000      0.00  Q         |         |         |         |      0+ 2       0.0000      0.01  Q         |         |         |         |      0+ 3       0.0000      0.01  Q         |         |         |         |      0+ 4       0.0000      0.01  Q         |         |         |         |      0+ 5       0.0001      0.01  Q         |         |         |         |      0+ 6       0.0001      0.01  Q         |         |         |         |      0+ 7       0.0001      0.01  Q         |         |         |         |      0+ 8       0.0001      0.01  Q         |         |         |         |      0+ 9       0.0001      0.01  Q         |         |         |         |      0+10       0.0001      0.01  Q         |         |         |         |      0+11       0.0002      0.01  Q         |         |         |         |      0+12       0.0002      0.01  Q         |         |         |         |      0+13       0.0002      0.01  Q         |         |         |         |      0+14       0.0002      0.01  Q         |         |         |         |      0+15       0.0002      0.01  Q         |         |         |         |      0+16       0.0002      0.01  Q         |         |         |         |      0+17       0.0003      0.01  Q         |         |         |         |      0+18       0.0003      0.01  Q         |         |         |         |      0+19       0.0003      0.01  Q         |         |         |         |      0+20       0.0003      0.01  Q         |         |         |         |      0+21       0.0003      0.01  Q         |         |         |         |      0+22       0.0003      0.01  Q         |         |         |         |      0+23       0.0004      0.01  Q         |         |         |         |      0+24       0.0004      0.01  Q         |         |         |         |      0+25       0.0004      0.01  Q         |         |         |         |      0+26       0.0004      0.01  QV        |         |         |         |      0+27       0.0004      0.01  QV        |         |         |         |      0+28       0.0005      0.01  QV        |         |         |         |      0+29       0.0005      0.01  QV        |         |         |         |      0+30       0.0005      0.01  QV        |         |         |         |      0+31       0.0005      0.01  QV        |         |         |         |      0+32       0.0005      0.01  QV        |         |         |         |      0+33       0.0005      0.01  QV        |         |         |         |      0+34       0.0006      0.01  QV        |         |         |         |      0+35       0.0006      0.01  QV        |         |         |         |      0+36       0.0006      0.01  QV        |         |         |         |      0+37       0.0006      0.01  QV        |         |         |         |      0+38       0.0006      0.01  QV        |         |         |         |      0+39       0.0006      0.01  QV        |         |         |         |      0+40       0.0007      0.01  QV        |         |         |         |      0+41       0.0007      0.01  |Q        |         |         |         |      0+42       0.0007      0.01  |Q        |         |         |         |      0+43       0.0007      0.01  |Q        |         |         |         |      0+44       0.0007      0.01  |Q        |         |         |         |      0+45       0.0008      0.01  |Q        |         |         |         |      0+46       0.0008      0.01  |Q        |         |         |         |      0+47       0.0008      0.01  |Q        |         |         |         |      0+48       0.0008      0.01  |QV       |         |         |         |      0+49       0.0008      0.01  |QV       |         |         |         |      0+50       0.0009      0.01  |QV       |         |         |         |      0+51       0.0009      0.01  |QV       |         |         |         |      0+52       0.0009      0.01  |QV       |         |         |         |      0+53       0.0009      0.01  |QV       |         |         |         |      0+54       0.0009      0.01  |QV       |         |         |         |      0+55       0.0009      0.01  |QV       |         |         |         |      0+56       0.0010      0.01  |QV       |         |         |         |      0+57       0.0010      0.01  |QV       |         |         |         |      0+58       0.0010      0.01  |QV       |         |         |         |      0+59       0.0010      0.01  |QV       |         |         |         |      1+ 0       0.0010      0.01  |QV       |         |         |         |      1+ 1       0.0011      0.01  |QV       |         |         |         |      1+ 2       0.0011      0.01  |QV       |         |         |         |      1+ 3       0.0011      0.01  |QV       |         |         |         |      1+ 4       0.0011      0.01  |QV       |         |         |         |      1+ 5       0.0011      0.01  |QV       |         |         |         |      1+ 6       0.0012      0.01  |QV       |         |         |         |      1+ 7       0.0012      0.01  |QV       |         |         |         |      1+ 8       0.0012      0.01  |QV       |         |         |         |      1+ 9       0.0012      0.01  |Q V      |         |         |         |      1+10       0.0012      0.01  |Q V      |         |         |         |      1+11       0.0013      0.01  |Q V      |         |         |         |      1+12       0.0013      0.01  |Q V      |         |         |         |      1+13       0.0013      0.01  |Q V      |         |         |         |      1+14       0.0013      0.01  |Q V      |         |         |         |      1+15       0.0013      0.02  |Q V      |         |         |         |      1+16       0.0014      0.02  |Q V      |         |         |         |      1+17       0.0014      0.02  |Q V      |         |         |         |      1+18       0.0014      0.02  |Q V      |         |         |         |      1+19       0.0014      0.02  |Q V      |         |         |         |      1+20       0.0015      0.02  |Q V      |         |         |         |      1+21       0.0015      0.02  |Q V      |         |         |         |      1+22       0.0015      0.02  |Q V      |         |         |         |      1+23       0.0015      0.02  |Q V      |         |         |         |      1+24       0.0015      0.02  |Q V      |         |         |         |      1+25       0.0016      0.02  |Q V      |         |         |         |      1+26       0.0016      0.02  |Q V      |         |         |         |      1+27       0.0016      0.02  |Q V      |         |         |         |      1+28       0.0016      0.02  |Q V      |         |         |         |      1+29       0.0016      0.02  |Q  V     |         |         |         |      1+30       0.0017      0.02  |Q  V     |         |         |         |      1+31       0.0017      0.02  |Q  V     |         |         |         |      1+32       0.0017      0.02  |Q  V     |         |         |         |      1+33       0.0017      0.02  |Q  V     |         |         |         |      1+34       0.0018      0.02  |Q  V     |         |         |         |      1+35       0.0018      0.02  |Q  V     |         |         |         |      1+36       0.0018      0.02  |Q  V     |         |         |         |      1+37       0.0018      0.02  |Q  V     |         |         |         |      1+38       0.0018      0.02  |Q  V     |         |         |         |      1+39       0.0019      0.02  |Q  V     |         |         |         |      1+40       0.0019      0.02  |Q  V     |         |         |         |      1+41       0.0019      0.02  |Q  V     |         |         |         |      1+42       0.0019      0.02  |Q  V     |         |         |         |      1+43       0.0020      0.02  |Q  V     |         |         |         |      1+44       0.0020      0.02  |Q  V     |         |         |         |      1+45       0.0020      0.02  |Q  V     |         |         |         |      1+46       0.0020      0.02  |Q  V     |         |         |         |      1+47       0.0021      0.02  |Q   V    |         |         |         |      1+48       0.0021      0.02  |Q   V    |         |         |         |      1+49       0.0021      0.02  |Q   V    |         |         |         |      1+50       0.0021      0.02  |Q   V    |         |         |         |      1+51       0.0022      0.02  |Q   V    |         |         |         |      1+52       0.0022      0.02  |Q   V    |         |         |         |      1+53       0.0022      0.02  |Q   V    |         |         |         |      1+54       0.0022      0.02  |Q   V    |         |         |         |      1+55       0.0023      0.02  |Q   V    |         |         |         |      1+56       0.0023      0.02  |Q   V    |         |         |         |      1+57       0.0023      0.02  |Q   V    |         |         |         |      1+58       0.0023      0.02  |Q   V    |         |         |         |      1+59       0.0024      0.02  |Q   V    |         |         |         |      2+ 0       0.0024      0.02  |Q   V    |         |         |         |      2+ 1       0.0024      0.02  |Q   V    |         |         |         |      2+ 2       0.0024      0.02  |Q   V    |         |         |         |      2+ 3       0.0025      0.02  |Q    V   |         |         |         |      2+ 4       0.0025      0.02  |Q    V   |         |         |         |      2+ 5       0.0025      0.02  |Q    V   |         |         |         |      2+ 6       0.0025      0.02  |Q    V   |         |         |         |      2+ 7       0.0026      0.02  |Q    V   |         |         |         |      2+ 8       0.0026      0.02  |Q    V   |         |         |         |      2+ 9       0.0026      0.02  |Q    V   |         |         |         |      2+10       0.0026      0.02  |Q    V   |         |         |         |      2+11       0.0027      0.02  |Q    V   |         |         |         |      2+12       0.0027      0.02  |Q    V   |         |         |         |      2+13       0.0027      0.02  |Q    V   |         |         |         |      2+14       0.0027      0.02  |Q    V   |         |         |         |      2+15       0.0028      0.02  |Q    V   |         |         |         |      2+16       0.0028      0.02  |Q    V   |         |         |         |      2+17       0.0028      0.02  |Q    V   |         |         |         |      2+18       0.0029      0.02  |Q     V  |         |         |         |      2+19       0.0029      0.02  |Q     V  |         |         |         |      2+20       0.0029      0.02  |Q     V  |         |         |         |      2+21       0.0029      0.02  |Q     V  |         |         |         |      2+22       0.0030      0.02  |Q     V  |         |         |         |      2+23       0.0030      0.02  |Q     V  |         |         |         |      2+24       0.0030      0.02  |Q     V  |         |         |         |      2+25       0.0031      0.02  |Q     V  |         |         |         |      2+26       0.0031      0.02  |Q     V  |         |         |         |      2+27       0.0031      0.02  |Q     V  |         |         |         |      2+28       0.0031      0.02  |Q     V  |         |         |         |      2+29       0.0032      0.02  |Q     V  |         |         |         |      2+30       0.0032      0.02  |Q     V  |         |         |         |      2+31       0.0032      0.02  |Q     V  |         |         |         |      2+32       0.0033      0.02  |Q      V |         |         |         |      2+33       0.0033      0.02  |Q      V |         |         |         |      2+34       0.0033      0.02  |Q      V |         |         |         |      2+35       0.0034      0.02  |Q      V |         |         |         |      2+36       0.0034      0.02  |Q      V |         |         |         |      2+37       0.0034      0.02  |Q      V |         |         |         |      2+38       0.0035      0.02  |Q      V |         |         |         |      2+39       0.0035      0.02  |Q      V |         |         |         |      2+40       0.0035      0.02  |Q      V |         |         |         |      2+41       0.0036      0.02  |Q      V |         |         |         |      2+42       0.0036      0.02  |Q      V |         |         |         |      2+43       0.0036      0.02  |Q      V |         |         |         |      2+44       0.0037      0.02  |Q      V |         |         |         |      2+45       0.0037      0.02  |Q       V|         |         |         |      2+46       0.0037      0.02  |Q       V|         |         |         |      2+47       0.0038      0.02  |Q       V|         |         |         |      2+48       0.0038      0.03  |Q       V|         |         |         |      2+49       0.0038      0.03  |Q       V|         |         |         |      2+50       0.0039      0.03  |Q       V|         |         |         |      2+51       0.0039      0.03  |Q       V|         |         |         |      2+52       0.0039      0.03  |Q       V|         |         |         |      2+53       0.0040      0.03  |Q       V|         |         |         |      2+54       0.0040      0.03  | Q      V|         |         |         |      2+55       0.0040      0.03  | Q      V|         |         |         |      2+56       0.0041      0.03  | Q       V         |         |         |      2+57       0.0041      0.03  | Q       V         |         |         |      2+58       0.0042      0.03  | Q       V         |         |         |      2+59       0.0042      0.03  | Q       V         |         |         |      3+ 0       0.0042      0.03  | Q       V         |         |         |      3+ 1       0.0043      0.03  | Q       V         |         |         |      3+ 2       0.0043      0.03  | Q       V         |         |         |      3+ 3       0.0044      0.03  | Q       V         |         |         |      3+ 4       0.0044      0.03  | Q       V         |         |         |      3+ 5       0.0044      0.03  | Q       V         |         |         |      3+ 6       0.0045      0.03  | Q       |V        |         |         |      3+ 7       0.0045      0.03  | Q       |V        |         |         |      3+ 8       0.0046      0.03  | Q       |V        |         |         |      3+ 9       0.0046      0.03  | Q       |V        |         |         |      3+10       0.0046      0.03  | Q       |V        |         |         |      3+11       0.0047      0.03  | Q       |V        |         |         |      3+12       0.0047      0.03  | Q       |V        |         |         |      3+13       0.0048      0.03  | Q       |V        |         |         |      3+14       0.0048      0.03  | Q       |V        |         |         |      3+15       0.0049      0.03  | Q       |V        |         |         |      3+16       0.0049      0.03  | Q       | V       |         |         |      3+17       0.0050      0.03  | Q       | V       |         |         |      3+18       0.0050      0.04  | Q       | V       |         |         |      3+19       0.0051      0.04  | Q       | V       |         |         |      3+20       0.0051      0.04  | Q       | V       |         |         |      3+21       0.0052      0.04  | Q       | V       |         |         |      3+22       0.0052      0.04  | Q       | V       |         |         |      3+23       0.0053      0.04  | Q       | V       |         |         |      3+24       0.0053      0.04  | Q       |  V      |         |         |      3+25       0.0054      0.04  | Q       |  V      |         |         |      3+26       0.0054      0.04  | Q       |  V      |         |         |      3+27       0.0055      0.04  |  Q      |  V      |         |         |      3+28       0.0055      0.04  |  Q      |  V      |         |         |      3+29       0.0056      0.04  |  Q      |  V      |         |         |      3+30       0.0057      0.04  |  Q      |  V      |         |         |      3+31       0.0057      0.04  |  Q      |   V     |         |         |      3+32       0.0058      0.05  |  Q      |   V     |         |         |      3+33       0.0058      0.05  |  Q      |   V     |         |         |      3+34       0.0059      0.05  |  Q      |   V     |         |         |      3+35       0.0060      0.05  |  Q      |   V     |         |         |      3+36       0.0060      0.05  |  Q      |   V     |         |         |      3+37       0.0061      0.05  |  Q      |    V    |         |         |      3+38       0.0062      0.05  |  Q      |    V    |         |         |      3+39       0.0063      0.05  |  Q      |    V    |         |         |      3+40       0.0063      0.05  |   Q     |    V    |         |         |      3+41       0.0064      0.06  |   Q     |    V    |         |         |      3+42       0.0065      0.06  |   Q     |    V    |         |         |      3+43       0.0066      0.06  |   Q     |     V   |         |         |      3+44       0.0066      0.06  |   Q     |     V   |         |         |      3+45       0.0067      0.06  |   Q     |     V   |         |         |      3+46       0.0068      0.07  |   Q     |     V   |         |         |      3+47       0.0069      0.07  |    Q    |     V   |         |         |      3+48       0.0070      0.07  |    Q    |      V  |         |         |      3+49       0.0071      0.08  |    Q    |      V  |         |         |      3+50       0.0072      0.08  |    Q    |      V  |         |         |      3+51       0.0073      0.08  |     Q   |       V |         |         |      3+52       0.0075      0.08  |     Q   |       V |         |         |      3+53       0.0076      0.09  |     Q   |       V |         |         |      3+54       0.0077      0.10  |      Q  |       V |         |         |      3+55       0.0079      0.11  |       Q |        V|         |         |      3+56       0.0080      0.12  |        Q|        V|         |         |      3+57       0.0082      0.13  |         Q         V         |         |      3+58       0.0084      0.15  |         |Q        V         |         |      3+59       0.0086      0.16  |         |Q        |V        |         |      4+ 0       0.0089      0.17  |         | Q       |V        |         |      4+ 1       0.0092      0.26  |         |        Q| V       |         |      4+ 2       0.0097      0.35  |         |         |  V  Q   |         |      4+ 3       0.0103      0.44  |         |         |    V    |  Q      |      4+ 4       0.0111      0.53  |         |         |      V  |        Q|      4+ 5       0.0116      0.42  |         |         |       V |Q        |      4+ 6       0.0121      0.31  |         |         |  Q     V|         |      4+ 7       0.0124      0.21  |         |    Q    |         V         |      4+ 8       0.0125      0.10  |      Q  |         |         V         |      4+ 9       0.0126      0.09  |     Q   |         |         |V        |      4+10       0.0127      0.08  |     Q   |         |         |V        |      4+11       0.0128      0.07  |    Q    |         |         |V        |      4+12       0.0129      0.07  |   Q     |         |         |V        |      4+13       0.0130      0.06  |   Q     |         |         |V        |      4+14       0.0131      0.06  |   Q     |         |         | V       |      4+15       0.0132      0.05  |   Q     |         |         | V       |      4+16       0.0132      0.05  |  Q      |         |         | V       |      4+17       0.0133      0.05  |  Q      |         |         | V       |      4+18       0.0134      0.05  |  Q      |         |         | V       |      4+19       0.0134      0.04  |  Q      |         |         | V       |      4+20       0.0135      0.04  |  Q      |         |         |  V      |      4+21       0.0135      0.04  |  Q      |         |         |  V      |      4+22       0.0136      0.04  |  Q      |         |         |  V      |      4+23       0.0137      0.04  | Q       |         |         |  V      |      4+24       0.0137      0.04  | Q       |         |         |  V      |      4+25       0.0138      0.04  | Q       |         |         |  V      |      4+26       0.0138      0.04  | Q       |         |         |  V      |      4+27       0.0138      0.03  | Q       |         |         |   V     |      4+28       0.0139      0.03  | Q       |         |         |   V     |      4+29       0.0139      0.03  | Q       |         |         |   V     |      4+30       0.0140      0.03  | Q       |         |         |   V     |      4+31       0.0140      0.03  | Q       |         |         |   V     |      4+32       0.0141      0.03  | Q       |         |         |   V     |      4+33       0.0141      0.03  | Q       |         |         |   V     |      4+34       0.0141      0.03  | Q       |         |         |   V     |      4+35       0.0142      0.03  | Q       |         |         |   V     |      4+36       0.0142      0.03  | Q       |         |         |   V     |      4+37       0.0143      0.03  | Q       |         |         |    V    |      4+38       0.0143      0.03  | Q       |         |         |    V    |      4+39       0.0143      0.03  |Q        |         |         |    V    |      4+40       0.0144      0.03  |Q        |         |         |    V    |      4+41       0.0144      0.03  |Q        |         |         |    V    |      4+42       0.0144      0.02  |Q        |         |         |    V    |      4+43       0.0145      0.02  |Q        |         |         |    V    |      4+44       0.0145      0.02  |Q        |         |         |    V    |      4+45       0.0145      0.02  |Q        |         |         |    V    |      4+46       0.0146      0.02  |Q        |         |         |    V    |      4+47       0.0146      0.02  |Q        |         |         |    V    |      4+48       0.0146      0.02  |Q        |         |         |    V    |      4+49       0.0147      0.02  |Q        |         |         |     V   |      4+50       0.0147      0.02  |Q        |         |         |     V   |      4+51       0.0147      0.02  |Q        |         |         |     V   |      4+52       0.0148      0.02  |Q        |         |         |     V   |      4+53       0.0148      0.02  |Q        |         |         |     V   |      4+54       0.0148      0.02  |Q        |         |         |     V   |      4+55       0.0148      0.02  |Q        |         |         |     V   |      4+56       0.0149      0.02  |Q        |         |         |     V   |      4+57       0.0149      0.02  |Q        |         |         |     V   |      4+58       0.0149      0.02  |Q        |         |         |     V   |      4+59       0.0149      0.02  |Q        |         |         |     V   |      5+ 0       0.0150      0.02  |Q        |         |         |     V   |      5+ 1       0.0150      0.02  |Q        |         |         |     V   |      5+ 2       0.0150      0.02  |Q        |         |         |     V   |      5+ 3       0.0151      0.02  |Q        |         |         |     V   |      5+ 4       0.0151      0.02  |Q        |         |         |      V  |      5+ 5       0.0151      0.02  |Q        |         |         |      V  |      5+ 6       0.0151      0.02  |Q        |         |         |      V  |      5+ 7       0.0152      0.02  |Q        |         |         |      V  |      5+ 8       0.0152      0.02  |Q        |         |         |      V  |      5+ 9       0.0152      0.02  |Q        |         |         |      V  |      5+10       0.0152      0.02  |Q        |         |         |      V  |      5+11       0.0153      0.02  |Q        |         |         |      V  |      5+12       0.0153      0.02  |Q        |         |         |      V  |      5+13       0.0153      0.02  |Q        |         |         |      V  |      5+14       0.0153      0.02  |Q        |         |         |      V  |      5+15       0.0153      0.02  |Q        |         |         |      V  |      5+16       0.0154      0.02  |Q        |         |         |      V  |      5+17       0.0154      0.02  |Q        |         |         |      V  |      5+18       0.0154      0.02  |Q        |         |         |      V  |      5+19       0.0154      0.02  |Q        |         |         |      V  |      5+20       0.0155      0.02  |Q        |         |         |      V  |      5+21       0.0155      0.02  |Q        |         |         |       V |      5+22       0.0155      0.02  |Q        |         |         |       V |      5+23       0.0155      0.02  |Q        |         |         |       V |      5+24       0.0155      0.02  |Q        |         |         |       V |      5+25       0.0156      0.02  |Q        |         |         |       V |      5+26       0.0156      0.02  |Q        |         |         |       V |      5+27       0.0156      0.02  |Q        |         |         |       V |      5+28       0.0156      0.01  |Q        |         |         |       V |      5+29       0.0156      0.01  |Q        |         |         |       V |      5+30       0.0157      0.01  |Q        |         |         |       V |      5+31       0.0157      0.01  |Q        |         |         |       V |      5+32       0.0157      0.01  |Q        |         |         |       V |      5+33       0.0157      0.01  |Q        |         |         |       V |      5+34       0.0157      0.01  |Q        |         |         |       V |      5+35       0.0158      0.01  |Q        |         |         |       V |      5+36       0.0158      0.01  |Q        |         |         |       V |      5+37       0.0158      0.01  |Q        |         |         |       V |      5+38       0.0158      0.01  |Q        |         |         |       V |      5+39       0.0158      0.01  |Q        |         |         |       V |      5+40       0.0159      0.01  |Q        |         |         |       V |      5+41       0.0159      0.01  |Q        |         |         |        V|      5+42       0.0159      0.01  |Q        |         |         |        V|      5+43       0.0159      0.01  |Q        |         |         |        V|      5+44       0.0159      0.01  |Q        |         |         |        V|      5+45       0.0160      0.01  |Q        |         |         |        V|      5+46       0.0160      0.01  Q         |         |         |        V|      5+47       0.0160      0.01  Q         |         |         |        V|      5+48       0.0160      0.01  Q         |         |         |        V|      5+49       0.0160      0.01  Q         |         |         |        V|      5+50       0.0160      0.01  Q         |         |         |        V|      5+51       0.0161      0.01  Q         |         |         |        V|      5+52       0.0161      0.01  Q         |         |         |        V|      5+53       0.0161      0.01  Q         |         |         |        V|      5+54       0.0161      0.01  Q         |         |         |        V|      5+55       0.0161      0.01  Q         |         |         |        V|      5+56       0.0161      0.01  Q         |         |         |        V|      5+57       0.0162      0.01  Q         |         |         |        V|      5+58       0.0162      0.01  Q         |         |         |        V|      5+59       0.0162      0.01  Q         |         |         |        V|      6+ 0       0.0162      0.01  Q         |         |         |        V|      6+ 1       0.0162      0.01  Q         |         |         |        V|      6+ 2       0.0162      0.01  Q         |         |         |        V|      6+ 3       0.0163      0.01  Q         |         |         |        V|      6+ 4       0.0163      0.01  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ End of computations, total study area =           0.092 (Ac.)                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2012                         Study date: 06/29/21 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 6313 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: PRHYD.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =   364 Time interval =    1.0 (Min.) Maximum/Peak flow rate =        0.531 (CFS) Total volume =       0.016 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      104.000 to Point/Station      105.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 364 Hydrograph time unit =  1.000 (Min.) Initial depth in storage basin =   9.27(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   9.27 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   1.16 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000          12.100      0.001      1.519     ‐0.000        0.002          12.600      0.002      1.659      0.001        0.003          13.100      0.003     10.270     ‐0.004        0.010 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       0.4    0.76    1.14    1.52 (Ft.)   0.017    0.00    0.00      0.000  O       |       |       |       |     0.00   0.033    0.01    0.02      0.000  O       |       |       |       |     0.15   0.050    0.01    0.01      0.000  O       |       |       |       |     0.06   0.067    0.01    0.01      0.000  O       |       |       |       |     0.08   0.083    0.01    0.01      0.000  O       |       |       |       |     0.10   0.100    0.01    0.01      0.000  O       |       |       |       |     0.10   0.117    0.01    0.01      0.000  O       |       |       |       |     0.10   0.133    0.01    0.01      0.000  O       |       |       |       |     0.10   0.150    0.01    0.01      0.000  O       |       |       |       |     0.10   0.167    0.01    0.01      0.000  O       |       |       |       |     0.10   0.183    0.01    0.01      0.000  O       |       |       |       |     0.10   0.200    0.01    0.01      0.000  O       |       |       |       |     0.10   0.217    0.01    0.01      0.000  O       |       |       |       |     0.10   0.233    0.01    0.01      0.000  O       |       |       |       |     0.10   0.250    0.01    0.01      0.000  O       |       |       |       |     0.10   0.267    0.01    0.01      0.000  O       |       |       |       |     0.10   0.283    0.01    0.01      0.000  O       |       |       |       |     0.10   0.300    0.01    0.01      0.000  O       |       |       |       |     0.10   0.317    0.01    0.01      0.000  O       |       |       |       |     0.10   0.333    0.01    0.01      0.000  O       |       |       |       |     0.10   0.350    0.01    0.01      0.000  O       |       |       |       |     0.10   0.367    0.01    0.01      0.000  O       |       |       |       |     0.10   0.383    0.01    0.01      0.000  O       |       |       |       |     0.10   0.400    0.01    0.01      0.000  O       |       |       |       |     0.10   0.417    0.01    0.01      0.000  O       |       |       |       |     0.10   0.433    0.01    0.01      0.000  O       |       |       |       |     0.10   0.450    0.01    0.01      0.000  O       |       |       |       |     0.10   0.467    0.01    0.01      0.000  O       |       |       |       |     0.10   0.483    0.01    0.01      0.000  O       |       |       |       |     0.10   0.500    0.01    0.01      0.000  O       |       |       |       |     0.10   0.517    0.01    0.01      0.000  O       |       |       |       |     0.10   0.533    0.01    0.01      0.000  O       |       |       |       |     0.10   0.550    0.01    0.01      0.000  O       |       |       |       |     0.10   0.567    0.01    0.01      0.000  O       |       |       |       |     0.10   0.583    0.01    0.01      0.000  O       |       |       |       |     0.10   0.600    0.01    0.01      0.000  O       |       |       |       |     0.10   0.617    0.01    0.01      0.000  O       |       |       |       |     0.10   0.633    0.01    0.01      0.000  O       |       |       |       |     0.11   0.650    0.01    0.01      0.000  O       |       |       |       |     0.11   0.667    0.01    0.01      0.000  O       |       |       |       |     0.11   0.683    0.01    0.01      0.000  O       |       |       |       |     0.11   0.700    0.01    0.01      0.000  O       |       |       |       |     0.11   0.717    0.01    0.01      0.000  O       |       |       |       |     0.11   0.733    0.01    0.01      0.000  O       |       |       |       |     0.11   0.750    0.01    0.01      0.000  O       |       |       |       |     0.11   0.767    0.01    0.01      0.000  O       |       |       |       |     0.11   0.783    0.01    0.01      0.000  O       |       |       |       |     0.11   0.800    0.01    0.01      0.000  O       |       |       |       |     0.11   0.817    0.01    0.01      0.000  O       |       |       |       |     0.11   0.833    0.01    0.01      0.000  O       |       |       |       |     0.11   0.850    0.01    0.01      0.000  O       |       |       |       |     0.11   0.867    0.01    0.01      0.000  O       |       |       |       |     0.11   0.883    0.01    0.01      0.000  O       |       |       |       |     0.11   0.900    0.01    0.01      0.000  O       |       |       |       |     0.11   0.917    0.01    0.01      0.000  O       |       |       |       |     0.11   0.933    0.01    0.01      0.000  O       |       |       |       |     0.11   0.950    0.01    0.01      0.000  O       |       |       |       |     0.11   0.967    0.01    0.01      0.000  O       |       |       |       |     0.11   0.983    0.01    0.01      0.000  O       |       |       |       |     0.11   1.000    0.01    0.01      0.000  O       |       |       |       |     0.11   1.017    0.01    0.01      0.000  O       |       |       |       |     0.11   1.033    0.01    0.01      0.000  O       |       |       |       |     0.11   1.050    0.01    0.01      0.000  O       |       |       |       |     0.11   1.067    0.01    0.01      0.000  O       |       |       |       |     0.11   1.083    0.01    0.01      0.000  O       |       |       |       |     0.11   1.100    0.01    0.01      0.000  O       |       |       |       |     0.12   1.117    0.01    0.01      0.000  O       |       |       |       |     0.12   1.133    0.01    0.01      0.000  O       |       |       |       |     0.12   1.150    0.01    0.01      0.000  O       |       |       |       |     0.12   1.167    0.01    0.01      0.000  O       |       |       |       |     0.12   1.183    0.01    0.01      0.000  O       |       |       |       |     0.12   1.200    0.01    0.01      0.000  O       |       |       |       |     0.12   1.217    0.01    0.01      0.000  O       |       |       |       |     0.12   1.233    0.01    0.01      0.000  O       |       |       |       |     0.12   1.250    0.02    0.02      0.000  O       |       |       |       |     0.12   1.267    0.02    0.02      0.000  O       |       |       |       |     0.12   1.283    0.02    0.02      0.000  O       |       |       |       |     0.12   1.300    0.02    0.02      0.000  O       |       |       |       |     0.12   1.317    0.02    0.02      0.000  O       |       |       |       |     0.12   1.333    0.02    0.02      0.000  O       |       |       |       |     0.12   1.350    0.02    0.02      0.000  O       |       |       |       |     0.12   1.367    0.02    0.02      0.000  O       |       |       |       |     0.12   1.383    0.02    0.02      0.000  O       |       |       |       |     0.12   1.400    0.02    0.02      0.000  O       |       |       |       |     0.12   1.417    0.02    0.02      0.000  O       |       |       |       |     0.12   1.433    0.02    0.02      0.000  O       |       |       |       |     0.12   1.450    0.02    0.02      0.000  O       |       |       |       |     0.13   1.467    0.02    0.02      0.000  O       |       |       |       |     0.13   1.483    0.02    0.02      0.000  O       |       |       |       |     0.13   1.500    0.02    0.02      0.000  O       |       |       |       |     0.13   1.517    0.02    0.02      0.000  O       |       |       |       |     0.13   1.533    0.02    0.02      0.000  O       |       |       |       |     0.13   1.550    0.02    0.02      0.000  O       |       |       |       |     0.13   1.567    0.02    0.02      0.000  O       |       |       |       |     0.13   1.583    0.02    0.02      0.000  O       |       |       |       |     0.13   1.600    0.02    0.02      0.000  O       |       |       |       |     0.13   1.617    0.02    0.02      0.000  O       |       |       |       |     0.13   1.633    0.02    0.02      0.000  O       |       |       |       |     0.13   1.650    0.02    0.02      0.000  O       |       |       |       |     0.13   1.667    0.02    0.02      0.000  O       |       |       |       |     0.13   1.683    0.02    0.02      0.000  O       |       |       |       |     0.13   1.700    0.02    0.02      0.000  O       |       |       |       |     0.13   1.717    0.02    0.02      0.000  O       |       |       |       |     0.13   1.733    0.02    0.02      0.000  O       |       |       |       |     0.13   1.750    0.02    0.02      0.000  O       |       |       |       |     0.14   1.767    0.02    0.02      0.000  O       |       |       |       |     0.14   1.783    0.02    0.02      0.000  O       |       |       |       |     0.14   1.800    0.02    0.02      0.000  O       |       |       |       |     0.14   1.817    0.02    0.02      0.000  O       |       |       |       |     0.14   1.833    0.02    0.02      0.000  O       |       |       |       |     0.14   1.850    0.02    0.02      0.000  O       |       |       |       |     0.14   1.867    0.02    0.02      0.000  O       |       |       |       |     0.14   1.883    0.02    0.02      0.000  O       |       |       |       |     0.14   1.900    0.02    0.02      0.000  O       |       |       |       |     0.14   1.917    0.02    0.02      0.000  O       |       |       |       |     0.14   1.933    0.02    0.02      0.000  O       |       |       |       |     0.14   1.950    0.02    0.02      0.000  O       |       |       |       |     0.14   1.967    0.02    0.02      0.000  O       |       |       |       |     0.14   1.983    0.02    0.02      0.000  O       |       |       |       |     0.15   2.000    0.02    0.02      0.000  O       |       |       |       |     0.15   2.017    0.02    0.02      0.000  O       |       |       |       |     0.15   2.033    0.02    0.02      0.000  O       |       |       |       |     0.15   2.050    0.02    0.02      0.000  O       |       |       |       |     0.15   2.067    0.02    0.02      0.000  O       |       |       |       |     0.15   2.083    0.02    0.02      0.000  O       |       |       |       |     0.15   2.100    0.02    0.02      0.000  O       |       |       |       |     0.15   2.117    0.02    0.02      0.000  O       |       |       |       |     0.15   2.133    0.02    0.02      0.000  O       |       |       |       |     0.15   2.150    0.02    0.02      0.000  O       |       |       |       |     0.15   2.167    0.02    0.02      0.000  O       |       |       |       |     0.15   2.183    0.02    0.02      0.000  O       |       |       |       |     0.16   2.200    0.02    0.02      0.000  O       |       |       |       |     0.16   2.217    0.02    0.02      0.000  O       |       |       |       |     0.16   2.233    0.02    0.02      0.000  O       |       |       |       |     0.16   2.250    0.02    0.02      0.000  O       |       |       |       |     0.16   2.267    0.02    0.02      0.000  O       |       |       |       |     0.16   2.283    0.02    0.02      0.000  O       |       |       |       |     0.16   2.300    0.02    0.02      0.000  O       |       |       |       |     0.16   2.317    0.02    0.02      0.000  O       |       |       |       |     0.16   2.333    0.02    0.02      0.000  O       |       |       |       |     0.16   2.350    0.02    0.02      0.000  O       |       |       |       |     0.17   2.367    0.02    0.02      0.000  O       |       |       |       |     0.17   2.383    0.02    0.02      0.000  O       |       |       |       |     0.17   2.400    0.02    0.02      0.000  O       |       |       |       |     0.17   2.417    0.02    0.02      0.000  O       |       |       |       |     0.17   2.433    0.02    0.02      0.000  O       |       |       |       |     0.17   2.450    0.02    0.02      0.000  O       |       |       |       |     0.17   2.467    0.02    0.02      0.000  O       |       |       |       |     0.17   2.483    0.02    0.02      0.000  O       |       |       |       |     0.17   2.500    0.02    0.02      0.000  O       |       |       |       |     0.17   2.517    0.02    0.02      0.000  O       |       |       |       |     0.18   2.533    0.02    0.02      0.000  O       |       |       |       |     0.18   2.550    0.02    0.02      0.000  O       |       |       |       |     0.18   2.567    0.02    0.02      0.000  O       |       |       |       |     0.18   2.583    0.02    0.02      0.000  O       |       |       |       |     0.18   2.600    0.02    0.02      0.000  O       |       |       |       |     0.18   2.617    0.02    0.02      0.000  O       |       |       |       |     0.18   2.633    0.02    0.02      0.000  O       |       |       |       |     0.19   2.650    0.02    0.02      0.000  O       |       |       |       |     0.19   2.667    0.02    0.02      0.000  O       |       |       |       |     0.19   2.683    0.02    0.02      0.000  O       |       |       |       |     0.19   2.700    0.02    0.02      0.000  O       |       |       |       |     0.19   2.717    0.02    0.02      0.000  O       |       |       |       |     0.19   2.733    0.02    0.02      0.000  O       |       |       |       |     0.19   2.750    0.02    0.02      0.000  O       |       |       |       |     0.20   2.767    0.02    0.02      0.000  O       |       |       |       |     0.20   2.783    0.02    0.02      0.000  O       |       |       |       |     0.20   2.800    0.03    0.03      0.000  O       |       |       |       |     0.20   2.817    0.03    0.03      0.000  O       |       |       |       |     0.20   2.833    0.03    0.03      0.000  O       |       |       |       |     0.20   2.850    0.03    0.03      0.000  O       |       |       |       |     0.21   2.867    0.03    0.03      0.000  O       |       |       |       |     0.21   2.883    0.03    0.03      0.000  O       |       |       |       |     0.21   2.900    0.03    0.03      0.000  O       |       |       |       |     0.21   2.917    0.03    0.03      0.000  O       |       |       |       |     0.21   2.933    0.03    0.03      0.000  O       |       |       |       |     0.21   2.950    0.03    0.03      0.000  O       |       |       |       |     0.22   2.967    0.03    0.03      0.000  O       |       |       |       |     0.22   2.983    0.03    0.03      0.000  O       |       |       |       |     0.22   3.000    0.03    0.03      0.000  O       |       |       |       |     0.22   3.017    0.03    0.03      0.000  O       |       |       |       |     0.23   3.033    0.03    0.03      0.000  O       |       |       |       |     0.23   3.050    0.03    0.03      0.000  O       |       |       |       |     0.23   3.067    0.03    0.03      0.000  O       |       |       |       |     0.23   3.083    0.03    0.03      0.000  O       |       |       |       |     0.23   3.100    0.03    0.03      0.000  O       |       |       |       |     0.24   3.117    0.03    0.03      0.000  O       |       |       |       |     0.24   3.133    0.03    0.03      0.000  O       |       |       |       |     0.25   3.150    0.03    0.03      0.000  O       |       |       |       |     0.25   3.167    0.03    0.03      0.000  O       |       |       |       |     0.25   3.183    0.03    0.03      0.000  O       |       |       |       |     0.25   3.200    0.03    0.03      0.000  O       |       |       |       |     0.25   3.217    0.03    0.03      0.000  O       |       |       |       |     0.26   3.233    0.03    0.03      0.000  O       |       |       |       |     0.26   3.250    0.03    0.03      0.000  O       |       |       |       |     0.27   3.267    0.03    0.03      0.000  O       |       |       |       |     0.27   3.283    0.03    0.03      0.000  O       |       |       |       |     0.28   3.300    0.04    0.03      0.000  O       |       |       |       |     0.28   3.317    0.04    0.04      0.000  O       |       |       |       |     0.28   3.333    0.04    0.04      0.000  O       |       |       |       |     0.28   3.350    0.04    0.04      0.000  O       |       |       |       |     0.29   3.367    0.04    0.04      0.000  O       |       |       |       |     0.29   3.383    0.04    0.04      0.000  O       |       |       |       |     0.30   3.400    0.04    0.04      0.000  O       |       |       |       |     0.31   3.417    0.04    0.04      0.000  O       |       |       |       |     0.31   3.433    0.04    0.04      0.000  O       |       |       |       |     0.31   3.450    0.04    0.04      0.000  O       |       |       |       |     0.32   3.467    0.04    0.04      0.000  O       |       |       |       |     0.32   3.483    0.04    0.04      0.000  O       |       |       |       |     0.33   3.500    0.04    0.04      0.000  O       |       |       |       |     0.34   3.517    0.04    0.04      0.000  O       |       |       |       |     0.35   3.533    0.05    0.04      0.000  O       |       |       |       |     0.35   3.550    0.05    0.05      0.000  O       |       |       |       |     0.36   3.567    0.05    0.05      0.000  O       |       |       |       |     0.37   3.583    0.05    0.05      0.000  O       |       |       |       |     0.37   3.600    0.05    0.05      0.000  |O      |       |       |       |     0.38   3.617    0.05    0.05      0.000  |O      |       |       |       |     0.39   3.633    0.05    0.05      0.000  |O      |       |       |       |     0.40   3.650    0.05    0.05      0.000  |O      |       |       |       |     0.42   3.667    0.05    0.05      0.000  |O      |       |       |       |     0.43   3.683    0.06    0.06      0.000  |O      |       |       |       |     0.44   3.700    0.06    0.06      0.000  |O      |       |       |       |     0.45   3.717    0.06    0.06      0.000  |O      |       |       |       |     0.46   3.733    0.06    0.06      0.000  |O      |       |       |       |     0.47   3.750    0.06    0.06      0.000  |O      |       |       |       |     0.49   3.767    0.07    0.06      0.000  |O      |       |       |       |     0.51   3.783    0.07    0.07      0.000  |O      |       |       |       |     0.54   3.800    0.07    0.07      0.000  |O      |       |       |       |     0.57   3.817    0.08    0.07      0.000  |O      |       |       |       |     0.59   3.833    0.08    0.08      0.000  |O      |       |       |       |     0.61   3.850    0.08    0.08      0.000  |O      |       |       |       |     0.63   3.867    0.08    0.08      0.000  |O      |       |       |       |     0.65   3.883    0.09    0.09      0.000  |O      |       |       |       |     0.70   3.900    0.10    0.10      0.000  | O     |       |       |       |     0.78   3.917    0.11    0.11      0.000  | O     |       |       |       |     0.85   3.933    0.12    0.12      0.000  | O     |       |       |       |     0.93   3.950    0.13    0.13      0.000  | O     |       |       |       |     1.02   3.967    0.15    0.14      0.000  | OI    |       |       |       |     1.12   3.983    0.16    0.15      0.000  |  O    |       |       |       |     1.22   4.000    0.17    0.17      0.000  |  O    |       |       |       |     1.32   4.017    0.26    0.22      0.000  |   OI  |       |       |       |     1.73   4.033    0.35    0.31      0.000  |     OI|       |       |       |     2.45   4.050    0.44    0.40      0.000  |       OI      |       |       |     3.17   4.067    0.53    0.49      0.000  |       | OI    |       |       |     3.89   4.083    0.42    0.48      0.000  |       I O     |       |       |     3.80   4.100    0.31    0.37      0.000  |     IO|       |       |       |     2.92   4.117    0.21    0.26      0.000  |   IO  |       |       |       |     2.05   4.133    0.10    0.15      0.000  | IO    |       |       |       |     1.19   4.150    0.09    0.09      0.000  |O      |       |       |       |     0.73   4.167    0.08    0.09      0.000  |O      |       |       |       |     0.68   4.183    0.07    0.08      0.000  |O      |       |       |       |     0.61   4.200    0.07    0.07      0.000  |O      |       |       |       |     0.55   4.217    0.06    0.06      0.000  |O      |       |       |       |     0.50   4.233    0.06    0.06      0.000  |O      |       |       |       |     0.48   4.250    0.05    0.06      0.000  |O      |       |       |       |     0.45   4.267    0.05    0.05      0.000  |O      |       |       |       |     0.42   4.283    0.05    0.05      0.000  |O      |       |       |       |     0.40   4.300    0.05    0.05      0.000  IO      |       |       |       |     0.38   4.317    0.04    0.05      0.000  O       |       |       |       |     0.36   4.333    0.04    0.04      0.000  O       |       |       |       |     0.35   4.350    0.04    0.04      0.000  O       |       |       |       |     0.33   4.367    0.04    0.04      0.000  O       |       |       |       |     0.32   4.383    0.04    0.04      0.000  O       |       |       |       |     0.31   4.400    0.04    0.04      0.000  O       |       |       |       |     0.30   4.417    0.04    0.04      0.000  O       |       |       |       |     0.29   4.433    0.04    0.04      0.000  O       |       |       |       |     0.28   4.450    0.03    0.03      0.000  O       |       |       |       |     0.28   4.467    0.03    0.03      0.000  O       |       |       |       |     0.27   4.483    0.03    0.03      0.000  O       |       |       |       |     0.26   4.500    0.03    0.03      0.000  O       |       |       |       |     0.25   4.517    0.03    0.03      0.000  O       |       |       |       |     0.25   4.533    0.03    0.03      0.000  O       |       |       |       |     0.24   4.550    0.03    0.03      0.000  O       |       |       |       |     0.24   4.567    0.03    0.03      0.000  O       |       |       |       |     0.23   4.583    0.03    0.03      0.000  O       |       |       |       |     0.23   4.600    0.03    0.03      0.000  O       |       |       |       |     0.22   4.617    0.03    0.03      0.000  O       |       |       |       |     0.22   4.633    0.03    0.03      0.000  O       |       |       |       |     0.21   4.650    0.03    0.03      0.000  O       |       |       |       |     0.21   4.667    0.03    0.03      0.000  O       |       |       |       |     0.21   4.683    0.03    0.03      0.000  O       |       |       |       |     0.20   4.700    0.02    0.03      0.000  O       |       |       |       |     0.20   4.717    0.02    0.02      0.000  O       |       |       |       |     0.20   4.733    0.02    0.02      0.000  O       |       |       |       |     0.19   4.750    0.02    0.02      0.000  O       |       |       |       |     0.19   4.767    0.02    0.02      0.000  O       |       |       |       |     0.19   4.783    0.02    0.02      0.000  O       |       |       |       |     0.18   4.800    0.02    0.02      0.000  O       |       |       |       |     0.18   4.817    0.02    0.02      0.000  O       |       |       |       |     0.18   4.833    0.02    0.02      0.000  O       |       |       |       |     0.18   4.850    0.02    0.02      0.000  O       |       |       |       |     0.17   4.867    0.02    0.02      0.000  O       |       |       |       |     0.17   4.883    0.02    0.02      0.000  O       |       |       |       |     0.17   4.900    0.02    0.02      0.000  O       |       |       |       |     0.17   4.917    0.02    0.02      0.000  O       |       |       |       |     0.17   4.933    0.02    0.02      0.000  O       |       |       |       |     0.16   4.950    0.02    0.02      0.000  O       |       |       |       |     0.16   4.967    0.02    0.02      0.000  O       |       |       |       |     0.16   4.983    0.02    0.02      0.000  O       |       |       |       |     0.16   5.000    0.02    0.02      0.000  O       |       |       |       |     0.16   5.017    0.02    0.02      0.000  O       |       |       |       |     0.15   5.033    0.02    0.02      0.000  O       |       |       |       |     0.15   5.050    0.02    0.02      0.000  O       |       |       |       |     0.15   5.067    0.02    0.02      0.000  O       |       |       |       |     0.15   5.083    0.02    0.02      0.000  O       |       |       |       |     0.15   5.100    0.02    0.02      0.000  O       |       |       |       |     0.15   5.117    0.02    0.02      0.000  O       |       |       |       |     0.14   5.133    0.02    0.02      0.000  O       |       |       |       |     0.14   5.150    0.02    0.02      0.000  O       |       |       |       |     0.14   5.167    0.02    0.02      0.000  O       |       |       |       |     0.14   5.183    0.02    0.02      0.000  O       |       |       |       |     0.14   5.200    0.02    0.02      0.000  O       |       |       |       |     0.14   5.217    0.02    0.02      0.000  O       |       |       |       |     0.14   5.233    0.02    0.02      0.000  O       |       |       |       |     0.13   5.250    0.02    0.02      0.000  O       |       |       |       |     0.13   5.267    0.02    0.02      0.000  O       |       |       |       |     0.13   5.283    0.02    0.02      0.000  O       |       |       |       |     0.13   5.300    0.02    0.02      0.000  O       |       |       |       |     0.13   5.317    0.02    0.02      0.000  O       |       |       |       |     0.13   5.333    0.02    0.02      0.000  O       |       |       |       |     0.13   5.350    0.02    0.02      0.000  O       |       |       |       |     0.13   5.367    0.02    0.02      0.000  O       |       |       |       |     0.13   5.383    0.02    0.02      0.000  O       |       |       |       |     0.12   5.400    0.02    0.02      0.000  O       |       |       |       |     0.12   5.417    0.02    0.02      0.000  O       |       |       |       |     0.12   5.433    0.02    0.02      0.000  O       |       |       |       |     0.12   5.450    0.02    0.02      0.000  O       |       |       |       |     0.12   5.467    0.01    0.02      0.000  O       |       |       |       |     0.12   5.483    0.01    0.01      0.000  O       |       |       |       |     0.12   5.500    0.01    0.01      0.000  O       |       |       |       |     0.12   5.517    0.01    0.01      0.000  O       |       |       |       |     0.12   5.533    0.01    0.01      0.000  O       |       |       |       |     0.12   5.550    0.01    0.01      0.000  O       |       |       |       |     0.12   5.567    0.01    0.01      0.000  O       |       |       |       |     0.11   5.583    0.01    0.01      0.000  O       |       |       |       |     0.11   5.600    0.01    0.01      0.000  O       |       |       |       |     0.11   5.617    0.01    0.01      0.000  O       |       |       |       |     0.11   5.633    0.01    0.01      0.000  O       |       |       |       |     0.11   5.650    0.01    0.01      0.000  O       |       |       |       |     0.11   5.667    0.01    0.01      0.000  O       |       |       |       |     0.11   5.683    0.01    0.01      0.000  O       |       |       |       |     0.11   5.700    0.01    0.01      0.000  O       |       |       |       |     0.11   5.717    0.01    0.01      0.000  O       |       |       |       |     0.11   5.733    0.01    0.01      0.000  O       |       |       |       |     0.11   5.750    0.01    0.01      0.000  O       |       |       |       |     0.11   5.767    0.01    0.01      0.000  O       |       |       |       |     0.11   5.783    0.01    0.01      0.000  O       |       |       |       |     0.10   5.800    0.01    0.01      0.000  O       |       |       |       |     0.10   5.817    0.01    0.01      0.000  O       |       |       |       |     0.10   5.833    0.01    0.01      0.000  O       |       |       |       |     0.10   5.850    0.01    0.01      0.000  O       |       |       |       |     0.10   5.867    0.01    0.01      0.000  O       |       |       |       |     0.10   5.883    0.01    0.01      0.000  O       |       |       |       |     0.10   5.900    0.01    0.01      0.000  O       |       |       |       |     0.10   5.917    0.01    0.01      0.000  O       |       |       |       |     0.10   5.933    0.01    0.01      0.000  O       |       |       |       |     0.10   5.950    0.01    0.01      0.000  O       |       |       |       |     0.10   5.967    0.01    0.01      0.000  O       |       |       |       |     0.10   5.983    0.01    0.01      0.000  O       |       |       |       |     0.10   6.000    0.01    0.01      0.000  O       |       |       |       |     0.10   6.017    0.01    0.01      0.000  O       |       |       |       |     0.10   6.033    0.01    0.01      0.000  O       |       |       |       |     0.10   6.050    0.01    0.01      0.000  O       |       |       |       |     0.10   6.067    0.01    0.01      0.000  O       |       |       |       |     0.10   6.083    0.00    0.01      0.000  O       |       |       |       |     0.05   6.100    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   366 Time interval =    1.0 (Min.) Maximum/Peak flow rate =        0.488 (CFS) Total volume =       0.016 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Diego County Rational Hydrology Program CIVILCADD/CIVILDESIGN Engineering Software,(c)1991‐2012 Version 7.9 Rational method hydrology  program based on San Diego County Flood Control Division 2003 hydrology manual Rational Hydrology Study        Date: 06/29/21 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 6313 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is   100.0 English (in‐lb) input data Units used Map data precipitation entered: 6 hour,  precipitation(inches) =  2.700 24 hour precipitation(inches) =  4.500 P6/P24 =    60.0% San Diego hydrology manual 'C' values used ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      103.000 to Point/Station      104.000 **** USER DEFINED FLOW INFORMATION AT A POINT **** ______________________________________________________________________ User specified 'C' value of 0.819 given for subarea Rainfall intensity (I) =      7.114(In/Hr) for a   100.0 year storm User specified values are as follows: TC =   5.00 min.  Rain intensity =       7.11(In/Hr) Total area =        0.092(Ac.)  Total runoff =     0.488(CFS) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      104.000 to Point/Station      105.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =     9.270(Ft.) Downstream point/station elevation =     9.000(Ft.) Pipe length  =    17.00(Ft.) Slope =   0.0159  Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     0.488(CFS) Given pipe size =      6.00(In.) Calculated individual pipe flow  =     0.488(CFS) Normal flow depth in pipe =    3.67(In.) Flow top width inside pipe =    5.85(In.) Critical Depth =    4.27(In.) Pipe flow velocity =      3.89(Ft/s) Travel time through pipe =    0.07 min. Time of concentration (TC) =     5.07 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      104.000 to Point/Station      105.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1  Stream flow area =      0.092(Ac.) Runoff from this stream =      0.488(CFS) Time of concentration =    5.07 min. Rainfall intensity =     7.048(In/Hr) Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      106.000 to Point/Station      105.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Decimal fraction soil group A = 0.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 1.000 [UNDISTURBED NATURAL TERRAIN                 ]  (Permanent Open Space   )  Impervious value, Ai = 0.000 Sub‐Area C Value = 0.350 Initial subarea total flow distance  =   17.000(Ft.) Highest elevation =   13.080(Ft.) Lowest elevation =    9.000(Ft.) Elevation difference =    4.080(Ft.) Slope = 24.000 % Top of Initial Area Slope adjusted by User to 20.813 % INITIAL AREA TIME OF CONCENTRATION CALCULATIONS: The maximum overland flow distance is 100.00 (Ft) for the top area slope value of  20.81 %, in a development type of  Permanent Open Space    In Accordance With Figure 3‐3  Initial Area Time of Concentration =   4.91 minutes TC = [1.8*(1.1‐C)*distance(Ft.)^.5)/(% slope^(1/3)] TC = [1.8*(1.1‐0.3500)*( 100.000^.5)/(  20.813^(1/3)]=   4.91 Calculated TC of    4.908 minutes is less than 5 minutes,  resetting TC to 5.0 minutes for rainfall intensity calculations Rainfall intensity (I) =      7.114(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.350 Subarea runoff =      0.037(CFS) Total initial stream area =        0.015(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station      106.000 to Point/Station      105.000 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2  Stream flow area =      0.015(Ac.) Runoff from this stream =      0.037(CFS) Time of concentration =    4.91 min. Rainfall intensity =     7.114(In/Hr) Summary of stream data: Stream   Flow rate      TC            Rainfall Intensity  No.       (CFS)       (min)                 (In/Hr) 1        0.488      5.07          7.048 2        0.037      4.91          7.114 Qmax(1) =    1.000 *    1.000 *     0.488) +    0.991 *    1.000 *     0.037) + =       0.525 Qmax(2) =    1.000 *    0.967 *     0.488) +    1.000 *    1.000 *     0.037) + =       0.509 Total of 2 main streams to confluence: Flow rates before confluence point:        0.488       0.037 Maximum flow rates at confluence using above data:         0.525        0.509 Area of streams before confluence:         0.092        0.015 Results of confluence: Total flow rate =      0.525(CFS) Time of concentration =     5.073 min. Effective stream area after confluence  =      0.107(Ac.) End of computations, total study area =           0.107 (Ac.) CLW No.: 1366D October 6, 2020 ATTACHMENT 5 HYDROLOGY MAP - EXISTING CONDITIONS 110 COPPERWOOD WAY, SUITE P, OCEANSIDE, CA 92058 PH: 760-908-8745 ● info@civillandworks.com CLW No.: 1366D October 6, 2020 ATTACHMENT 6 HYDROLOGY MAP - PROPOSED CONDITIONS 110 COPPERWOOD WAY, SUITE P, OCEANSIDE, CA 92058 PH: 760-908-8745 ● info@civillandworks.com