HomeMy WebLinkAbout2020-07-28; City Council; Resolution 2020-161July 28, 2020 Item #6 Page 3 of 82
RESOLUTION NO. 2020-161
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD,
CALIFORNIA, ACCEPTING THE AMERICANS WITH DISABILITIES ACT
BEACH ACCESS FEASIBILITY STUDY, INCLUDING THE CORRESPONDING
CONCEPT PLANS, AND DIRECTING STAFF TO PREPARE A REQUEST FOR
PROPOSALS TO PURSUE THE ENVIRONMENTAL REVIEW, AGENCY
PERMITTING, ENGINEERING AND CONSTRUCTION DOCUMENTATION
PHASES OF THE PROJECT.
EXHIBIT 1
WHEREAS, on July 24, 2018, the City Council adopted a resolution authorizing the execution of
a Professional Services Agreement with Chen Ryan for the preparation of feasibility studies for the
Americans with Di.sabilities Act (ADA) Beach Access Project, Capital Improvement Program (CIP) Project
No.6065;and
WHEREAS, the development of the ADA Beach Access Feasibility Study involved a public
outreach process to help inform the final recommendations; and
WHEREAS, the combined team of Public Works Branch staff, Parks & Recreation Department
staff, and the integrated transportation and land use planning consultant's staff conducted community
and stakeholder outreach to help identify the level of support for this project; and
WHEREAS, these events included a stakeholder group meeting held on Thursday, Nov. 15, 2018
and a follow-up stakeholder group meeting on Wednesday, Aug. 28, 2019, and on-site "pop-up" events
Friday, Nov. 16, 2018 and Saturday, Nov. 17, 2018, to gather further community input; and
WHEREAS, throughout the public outreach process, participants expressed that Carlsbad Village
is great for wheelchair users due to the generally flat topography; and
WHEREAS, the overwhelming consensus of participants was that the preferred location for ADA
access to the beach would be near Pine Avenue, due to its proximity to Carlsbad Village; and
WHEREAS, an ADA access at Tamarack Avenue was identified as an additional location -due to
the high levels of pedestrian activity and available amenities at Tamarack State Beach; and
July 28, 2020 Item #6 Page 4 of 82
WHEREAS, the ADA Beach Access Feasibility Study evaluated five alternatives using criteria
established by the project team; and
WHEREAS, the project team goals were to develop up to two preferred alternatives for ADA
access to the beach; and
WHEREAS, the two preferred alternatives selected for this purpose are located north of Pine
Avenue and at the Tamarack Avenue restroom; and
WHEREAS, the two preferred alternatives would provide ADA accessible connections to the
lower seawall, which is designated as a city trail; and
WHEREAS, staff recommends pursuing the environmental review, agency permitting,
engineering and construction documentation -phases on both preferred alternatives, to provide ADA
access at each end of the lower seawall; and
WHEREAS, staff has met with, and electronically communicated with, the California Coastal
Commission (CCC) local staff and the California Department of Parks and Recreation (State Parks) local
staff regarding the feasibility study on multiple occasions since the project's inception; and
WHEREAS, the CCC would have appeal authority on the city's issuance of a Coastal Development
Permit for the ADA Beach Access Project; and
WHEREAS, State Parks would have permitting authority on the project, relative to property
ownership rights; and
WHEREAS, the estimated cost of the ADA Beach Access Project was approximately $5,600,000
($2,800,000 per ramp); and
WHEREAS, Proposition H, codified in Carlsbad Municipal Code Chapter 1.24, states in relevant
part that "the city shall make no real property acquisition and/or no improvement to real property the
July 28, 2020 Item #6 Page 5 of 82
cost of which exceeds one million dollars in city funds, unless the proposed acquisition and/or
improvement project and the cost in city funds is first placed upon the ballot and approved by a
majority of the voters voting thereon at an election;" and
WHEREAS, the Guidelines implementing Proposition H, adopted pursuant to the Carlsbad
Municipal Code Section 1.24.050, states that the term "'Improvement to Real Property' shall not
include replacement, repair, maintenance, routine refurbishment or upgrades of existing facilities as
they are considered to be routine ongoing capital expenditures necessary to carry out the normal and
routine business of the city. The City Council may make findings on a case-by-case basis on whether
the above exceptions are applicable to a proposed project;" and
WHEREAS, the ADA Beach Access Project does not constitute "Improvements to Real Property"
as defined by the guidelines implementing Proposition H because the proposed project is an upgrade
of existing facilities necessary to provide ADA access to beaches and trails in the City of Carlsbad; and
WHEREAS, Proposition C, approved by a majority of voters in the City of Carlsbad in 2001,
authorized "spending city funds from various sources including the General Fund in an amount over $1
million to construct capital facilities including ... trail linkages and open space ... "; and
WHEREAS, the ADA Beach Access Project is a trail linkage; and
WHEREAS, staff is recommending City Council accept the feasibility study, including the
corresponding concept plans, and direct staff to proceed with the issuance of a request for proposals
for the environmental review, agency permitting, engineering and construction documentation phases
of the ADA Beach Access Project; and
WHEREAS, the City Planner has determined that City Council's acceptance of the feasibility
study is categorically exempt per the California Environmental Quality Act (CEQA) pursuant to CEQA
July 28, 2020 Item #6 Page 6 of 82
Guidelines section 15262 and will not have a significant effect on the environment because it is the
acceptance of a consultant's feasibility study for possible future actions which the city has not
approved, adopted or funded; and
WHEREAS, selecting project alternatives for which to pursue the environmental review, agency
permitting, engineering and construction documentation does not commit the city to any definite
course of action and does not foreclose the potential alternatives or mitigation measures.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Carlsbad, California, as
follows:
1. That the above recitations are true and correct.
2. That the ADA Beach Access Feasibility Study (Attachment A}, including corresponding
concept plans (Attachment B}, are accepted.
3. That the City Council selected the two preferred alternatives for the ADA Beach Access
Project as {1} located north of Pine Avenue and {2} at the Tamarack Avenue restroom.
4. That staff is directed to prepare a request for proposals to pursue the environmental
review, agency permitting, engineering and construction documentation phases of the
ADA Beach Access project.
5. That funding the proposed ADA Beach Access project, CIP Project No. 6065, using
General Fund money would comply with Proposition H because Proposition C
authorized expenditures of city funds over $1 million for trail linkages, and the proposed
project would not be an Improvement to Real Property, as defined by the guidelines
implementing Proposition H.
6. That the City Planner has considered the environmental factors and determined that
this action is categorically exempt from CEQA pursuant to CEQA Guidelines section
15262 and that an exception to the exemption does not apply. Selecting project
alternatives for which to pursue the environmental review, agency permitting,
engineering and construction documentation does not commit the city to any definite
July 28, 2020 Item #6 Page 7 of 82
course of action and does not foreclose the potential for alternatives or mitigation
measures.
PASSED, APPROVED AND ADOPTED at a Regular Meeting of the City Council of the City of
Carlsbad on the 28th day of July, 2020, by the following vote, to wit:
AYES:
NAYS:
ABSENT:
Hall, Blackburn, Bhat-Patel, Schumacher.
None.
None.
MATT HALL, Mayor
~t(M~v;¥2:fur
BARBARA ENGLESON, City Clerk
(SEAL)
Attachment A
·ADA Beach Access Feasibility Study
Final Report
Prepared for:
( City of
Carlsbad
Transportation Planning & Mobility
Public Works Department
City of Carlsbad
1635 Faraday Avenue
Carlsbad, CA 92008-7314
Prepared by:
CHEN RYAN
3900 5th Avenue, Suite 310
San Diego, CA 92103
January 2020
July 28, 2020 · Item #6 Page 8 of 82
Table of Contents
1.0
1.1
1.2
1.3
2.0
3.0
3.1
3.2
3.3
3.4
3.5
3.6
4.0
4.1
4.2
4.3
4.4
Introduction ............................................................................................................... 2
Overview .......................................................................................................................... 2
Project Identification and Goals ...................................................................................... 2
Project Study Area ........................................................................................................... 2
Existing Conditions ..................................................................................................... 4
Feasibility Study Approach ......................................................................................... 4
Existing Access Utilization ................................................................................. : .............. 4
Community Input ............................................................................................................. 5
Vegetation Constraints Analysis ...................................................................................... 6
Enginee.ring Evaluation .................................................................................................... 9
Development and Evaluation of Ramp Alternatives ..................................................... 10
Evaluation criteria to select preferred ramp ................................................................. 10
Feasibility Study Results ........................................................................................... 11
Preferred Alternatives ................................................................................................... 11
Conceptual Design ......................................................................................................... 12
Opinion of Probable Construction Costs ....................................................................... 19
CEQA Clearance ............................................................................................................. 19
Appendices
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Pedestrian Acitivity Analysis
Vegetation Constraints Memorandum
Existing Conditions Slope Analysis
Pine Avenue and Tamarack Avenue Ramp Options
Pine Avenue and Tamarack Avenue Ramps
OPCC and Structures Estimate
Environmental Constraints Table
List of Figures
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
List of Tables
Table 3.1
Table 4.1
July 28, 2020
Project Study Area .............................................................................................................. 3
Habitat Value Assessment .................................................................................................. 8
Pine Avenue Beach Access ................................................................................................ 13
Pine Avenue Ramp ............................................................................................................ 14
Tamarak Avenue Beach Access ......................................................................................... 15
Tamarak Avenue Restroom Ramp .................................................................................... 16
Design Character ............................................................................................................... 17
Plant Materials .................................................................................................................. 18
24-Hr Pedestrian Activity-Saturday, August 11, 2018 ........................................................... 5
The Criteria for Evaluating Alternatives With Associated Weighting .................................. 11
Item #6 Page 9 of 82
1 .0 Introduction
1.1 Overview
The City of Carlsbad Public Works -Transportation Department commissioned a feasibility study to
evaluate alternatives to provide access to Carlsbad State Beach (beach) that are compliant with the
Americans with Disabilities Act (ADA) requirements.
Purpose
The purpose of the project is to provide access for all pedestrians, regardless of ability, to one of the
area's premiere beaches. The importance of this project cannot be understated since it will allow the
community to enjoy a beautiful natural-resource that is unique to the region. The proposed project
promotes the spirit and vision of both the California Coastal Act and the Americans with Disabilities
Act.
1.2 Project Identification and Goals
ADA Beach Access Study, CIP No. 60651
The project's main objective is to evaluate the feasibility of constructing one or more ADA access
ramps to provide a connection from Carlsbad Boulevard to the beach. A number of alternatives were
considered and evaluated using criteria established by the project team. The project goal was to
develop up to two preferred alternatives for this connection between Carlsbad Boulevard and the
beach.
1.3 Project Study Area
The ADA Beach Access Study project area is along Carlsbad Boulevard and the beach from to the
parking lot just north of Pine Avenue to the Cold-Water Inlet Bridge (bridge), just south of Tamarack
Avenue.
Figure 1 displays the project's study area.
July 28, 2020 Item #6 Page 10 of 82
'--c: -< N SXJ N 0 N 0 ;::;: (1) 3 # O"I "ti cu OQ (1) I-' .... 0 -00 N Figure 1-Project Study Area RAMP @RESTROOM BUILDING · STAIRWAY @TAMARACK AVE
2.0 Existing Conditions
Carlsbad State Beach, also known as Tamarack State Beach, stretches from the warm water jetties, just
south of Tamarack A venue, to Frazee Beach, near Carlsbad Village Drive.
Carlsbad Boulevard runs along the bluffs above the beach along this stretch of coastline. At the north
end of the project (near Pine Avenue), the roadway is approximately 30 feet above the beach; at the
south end (bridge), the roadway is about 12 feet above the parking lot. Along these 4,200 lineal feet,
pedestrian access is provided via six stairways and two ramps. Vehicular access is provided as an
extension of Tamarack A venue to Tamarack State Beach. The slopes of the two ramps at Pine A venue
and Tamarack Avenue exceed the allowable slopes defined by ADA at 15.6% and 9.9%, respectively
and with no landings.
The Carlsbad Seawall, a paved walking path along the coast, extends from Pine Avenue to Tamarack
A venue. The lower seawall runs along the bottom of the bluffs at the back beach and provides shoreline
protection for the walking path and the bluffs. Stairs are provided to connect to lower seawall to the
beach. The upper seawall includes a paved walking trail along the west side of Carlsbad Boulevard.
The section of the coastline is highly utilized by people walking, jogging, and cycling.
3.0 Feasibility Study Approach
This chapter describes the various studies performed as part of the selection process for the location of
the proposed ramps.
3.1 Existing Access Utilization
In order to determine utilization at the existing points of access to the beach, pedestrian counts were
conducted at eight (8) locations (see below) along Carlsbad Boulevard on an average Saturday
(Saturday, August 11, 2018).
1. Pine Avenue Beach Access Ramp;
2. Sycamore Avenue Stairway;
3. Maple A venue Stairway;
4. Cherry Av~nue Stairway;
5. Hemlock A venue Stairway;
6. Tamarack Avenue Stairway;
7. Tamarack Beach Parking Lot Access Road Walkway; and
8. Cold-Water Inlet Stairway.
July 28, 2020 Item #6 Page 12 of 82
Table 3.1 displays the pedestrian counts collected Saturday, August 11, 2018.
TABLE 3.1-24-HR PEDESTRIAN ACTIVITY-SATURDAY, AUGUST 11, 2018
Total
Pedestrian Peak Hour
Location Counts Peak Hour Volume
1 -Pine A venue Beach 5,720 7:00 PM 536 Access Ramp
2 -Sycamore A venue 1,599 2:00 PM 191 Stairway
3 -Maple A venue 1,249 1:00 PM 126 Stairway
4 -Cherry A venue 2,042 7:00 PM 206 Stairway
5 -Hemlock A venue 1,686 4:00 PM 173 Stairway
6 -Tamarack A venue 3,477 7:00 PM 316 Stairway
7 -Tamarack Beach
Parking Lot Access 1,758* 7:00 PM 215*
Road Walkway
8 -Cold-Water Inlet 1,007 9:00AM 120 Stairway
Source: Chen Ryan Associates, June 2019.
Notes:
*Pedestrian volumes obtained using ratios developed based on counts from Friday,
August 10th.
As shown in Table 3.1, the Pine Avenue Beach Access Ramp was identified as the location with the
highest pedestrian activity with 5,720 pedestrians on an average summer Saturday. It should also be
noted that the combined number of pedestrians at the two available access points at Tamarack A venue
was 5,235. The Cold-Water Inlet Stairway was identified as the location with the lowest pedestrian
activity with 1,007 pedestrians on an average summer Saturday. See Appendix A for pedestrian count
worksheets.
3.2 Community Input
The project team conducted community and stakeholder outreach initiatives to identify the level of
support and obtain community input for the ADA Beach Access Feasibility Study. These efforts
included:
• Stakeholder Meeting (November 15, 2018);
• On-site "pop-up" events (November 16 and 17, 2018).
The people who were invited to the Stakeholder Meeting were residents that had previously expressed
a desire for better access to Carlsbad State Beach. Many of these stakeholders are wheelchair users
and lived in the Carlsbad Village. They expressed that the village is a great for them due to the
generally flat topography. The overwhelming consensus from this group was that their most ideal
location for ADA access would be near Pine Avenue. Tamarack Avenue was identified as a potential
July 28, 2020 Item #6 Page 13 of 82
location if more than one ramp could be built. The reason for this overwhelming consensus is due to
the close proximity to Carlsbad Village of a Pine Avenue ADA Ramp compared to other locations
further to the south.
The two "pop-up" events were held
on-site. One was held on a Friday
afternoon near Pine A venue and the
second was held on a Saturday
morning near Tamarack A venue.
There was board support from the
community for the project at these
two events.
"Pop-up" event held near Pine Avenue on November 16, 2018
3.3 Vegetation Constraints Analysis
To aid in siting considerations that may minin1ize impacts to native habitats, the project team conducted
a qualitative assessment of bluff habitats supporting native plants along the coastal bluffs in the project
vicinity.
This assessment included a field inspection of the site to detennine species composition and relative
cover values for native plants, non-native plants, and unvegetated areas. Bluff habitats were divided
into areas (polygons) of similar cover proportions and depicted on a map.
Common native species observed in the study area included coast prickly pear (Opuntia littoralis),
California fuchsia (Epilobium canum), seacliff buckwheat (Eriogonum parvifolium), California
boxthorn (Lycium californicum), coastal goldenbush (lsocoma menziesii), coast cholla
(Cylindropuntia prolifera), and California encelia (Encelia califomica). Common non-native species
observed included, ngaio (Myoporum laetum), sea lavender (Limonium perezii), and natal plum
(Carissa macrocarpa).
On the basis of the relative cover values, each of the 12 mapped polygons were then ranked from
highest potential impact to native plant resources (Rank of 1) to lowest potential impact to native plant
resources (Rank of 12) on the basis of the assigned cover value using the following assumptions:
► Higher relative cover value of native plant implies higher potential impacts
► Higher relative cover value of non-native plants implies lower potential impacts
► Higher relative cover value of unvegetated implies lower potential impacts
See Appendix B for the Vegetation Constraints Memorandum.
July 28, 2020 Item #6 Page 14 of 82
The vegetation assessment provides a ranking for potential habitat impacts associated with construction
of ADA access along Carlsbad Boulevard. Figure 2 displays polygons and their respective ranking
with the highest rankings reflect the lowest degree of impact to native and/or dense vegetation along
the bluffs, while those with lower rankings represent those areas that should be avoided if feasible. For
example, Polygon "I" had the lowest ranking and would result in the highest amount of impacts to
native and/or dense vegetation, therefore this area was to be avoided. Polygon H has the highest ranking
of 12 and would result in the least amount of impacts. Impacts to this resource represent one
consideration among many, and helped inform siting efforts for the preferred alternatives.
July 28, 2020 Item #6 Page 15 of 82
'-,i; o:.._ ___ __,,1,MII&,_ ....
9 250 0
Scale: 1 :3.000 I in -250 fea-t
July 28, 2020
Figure 2 -Habitat Value Assessment
250
Feet
I
I I G t (.
r ~, ~ ~-~ 1,. ~
Jt rt .,. .. ·~ .. . _,.
;~ ,
20 5 75 A
L35 15 60 K
35 10 S5 D
75 0 25 L
60 10 30 C
80 0 20 E
80 15 5
, .... Jl_.Q 5 15
ADA ACCESSIBILITY
HABITAT VALUE ASSESSMENT
Item #6 Page 16 of 82
3.4 Engineering Evaluation
A number of steps were taken to evaluate the engineering feasibility of ADA access ramp(s) from
Carlsbad Boulevard to the beach. Two key factors that were considered throughout this evaluation
were landform alteration and shoreline protection. This is due to the project team's understanding of
the California Coastal Commission's (CCC) desire to minimize landform alteration and installation of
new shoreline protection along the coastline.
A review of existing conditions was completed, including an evaluation of how long ADA compliant
ramps would need to be at various locations within the study area. Existing utilities were also identified
within the project area. These included the storm drain outfall at Pine A venue and above ground
irrigation within along the bluffs.
In order to determine if the ramps could be constructed at grade while minimizing landform alteration,
a slope analysis was completed along the bluffs within the study area.
See Appendix C for slope analysis exhibits.
Land Form Alteration
Land form alteration is identified in the California Coastal Act as a significant environmental concern
for the following reasons:
• Land form alteration often leads to loss of habitat, erosion, runoff and water quality
degradation.
• Once land form alteration has occurred, it is difficult, if not impossible for an engineered area
to replicate all the functions of an unaltered area.
• Land form alteration in steep slope areas can have far more impact than in low relief areas.
• Development in steep areas often proposes vast amounts of land form alteration to make the
area safe and buildable.
Slope Analysis Results
The slope analysis showed slopes of stepper than 2: 1 within the bluffs throughout the study area. These
steep slopes led the project team to determine that an elevated ramp system with pile supports would
be seen as more favorable compared to an at-grade ramp by both the CCC and CA State Parks.
Geotechnical
Based on preliminary review of existing conditions and the Geotechnical Investigation Report for the
Tamarack Coastal Improvements Project prepared by AECOM on March 2018, since the proposed pile
supports are entirely in the bluffs, putting it informational soil (Terrace Deposits), liquefaction would not
be an issue.
July 28, 2020 Item #6 Page 17 of 82
3.5 Development and Evaluation of Ramp Alternatives
Based on the existing access utilization, community input, the vegetation constraints analysis, and the
engineering evaluation, all described above, five (5) different alternative ramp locations were identified
for further evaluation:
• North of Pine Avenue
• Pine A venue
• Cherry Street
• Tamarack Avenue Restroom
• South of Tamarack Avenue Access Road
3.6 Evaluation criteria to select preferred ramp
The project team identified fourteen (14) potential criterion for evaluation of the five alternatives.
These included the following:
1. Usage / Demand
2. Safety and Convenience
3. Construction Feasibility/ Complexity
4. California Coastal Commission Acceptance
5. Aesthetics
6. Public Input
7. State Parks Concurrence
8. Sea Level Rise/ Storm Damage Vulnerability
9. Biological Resources
10. Geotechnical / Geology
11. Transportation I Traffic
12. Noise
13. Greenhouse Gas Emissions
14. Air Quality
The project team participated in an online survey to rank the fourteen (14) potential criterion based on
each team member's opinion of what should be considered as most important. These ranking led to
the elimination of the four (4) lowest scoring criterion, leaving the team with ten (10) criterion for
ranking the alternative ramp locations. Further, the project team utilized the ranking from the survey
to assign weights to each of the scoring criterion with the highest being worth a maximum of 13 points
and the lowest being worth a maximum of 6 points out of 100. Table 4.1 depicts the final criteria and
associated weight given to each criterion. It should be noted each of the five (5) ramp alternative
locations would have received very similar scores for each of the four criterion that were eliminated
(Transportation/Traffic, Noise, Greenhouse Gas Emissions, and Air Quality).
July 28, 2020 Item #6 Page 18 of 82
TABLE 4.1 displays the criteria for evaluating alternatives with associated weighting
Weighted
# Criteria Weight
1 Usage/Demand 1.3
2 Safety/Convenience 1.3
3 Construction 1.1 Feasibility/Complexity
4 CCC Acceptance 1.1
5 Aesthetics 1.1
6 Public Input 1.0
7 State Parks Concurrence 1.0
8 Vulnerability 0.8
9 Biological Resources 0.7 Impact
10 Geotech / Geology 0.6
Total 10.0
Source: Chen Ryan Associates, June 2019.
4.0 Feasibility Study Results
4.1 Preferred Alternatives
Max
13
13
11
11
11
10
10
8
7
6
100
The project team utilized the criteria for evaluating alternative locations to score each of the five ( 5)
alternative locations compared to one another.
Summary of the evaluation for each alternative:
• North of Pine Avenue-preferred alternative #1. The alternative location scored high across
the board with high scores for usage/demand, construction feasibility/complexity, CCC
acceptance, public input, State Parks concurrence, and biological resources impact. The only
real mark against this alternative is vulnerability. This is because the end of the ramp is at
grade and not protected by shoreline protection. However, some of the existing rip-rap could
be moved around to enhance this deficiency.
• Pine Avenue -This alternative scored lower than North of Pine due to the complexity of
constructing the ramp in the narrow area between the existing restroom and the upper sea wall
walkway. If would also result in greater impacts to biological resources and require some
landform alteration at the end of the ramp.
• Cherry Street -lowest score. This alternative scored poorly on usage/demand,
safety/convenience, and public input.
• Tamarack Avenue Restroom -preferred alternative #2. This alternative location scored
second highest overall.
July 28, 2020 Item #6 Page 19 of 82
• South of Tamarack Avenue Access Road -This alternative scored lower than the Tamarack
A venue Restroom due to vulnerability (it does not land behind the lower seawall) and
safety/convenience (it requires crossing vehicle drive aisle to access the beach and does not
allow for ADA access to the existing restroom).
4.2 Conceptual Design
Schmidt Design Group developed a number ofrough sketches for the two preferred alternatives (see
Appendix D). These were refined utilizing input from the project team and city staff (see Appendix
E). Some of the key decisions that were made during this process included the following:
• North of Pine Avenue Ramp-
a Land the ramp near the existing rip-rap adjacent to the existing restroom. This
approach mitigates the vulnerability to raising sea levels and provides access to the
ADA compliant restroom. Landing on the sand as shown on some of the initial
sketches was not seen as ideal.
o Do not include stairs. The project team decided that inclusion of stairs that provide
access to a different potion of the beach does not meet the reasonable accommodation
requirements of ADA.
o Ramp to be 8' wide.
o Maintain existing informal railroad tie access trails at the parking lot.
• Tamarack A venue Restroom Ramp -
o Minimize ramp length within the bluffs. This approach lessens impact to biological
resources.
o Revise existing ramp to existing restroom to be ADA compliant. This allows for ADA
access to the existing restrooms and also allows a large portion of the ramp system to
be built at-grade (much lower cost) on previously disturbed land.
o Ramp to be 8' wide.
Figures 4-7 display the North of Pine Avenue Ramp and Tamarack Avenue Restroom Ramp final
concepts and photo simulations.
Figures 8 and 9 display the conceptual design character and plant materials for the projects.
July 28, 2020 Item #6 Page 20 of 82
'-c < N ~00 N 0 N 0 ;::; (l) 3 :ii: en "'O n, (TQ (l) N .... 0 ..... 00 N Figure 3 -North of Pine Avenue Ramp KEY 0 PROPOSEDB'--O'RAMPWITtt HANORAIUNG • 2'!> MAX. LANDINGS; TYPICAL 0 PROPOSED PLANTING AREA: TYPICAL • START OF ELEVATED ACCESSIBLE PATH ON STRUCTURAL COLUMNS 0 END Of ELEVATED ACCESSIBLf PATH ON STRUCTURAL COLUMNS. PATH CONTINUES AT GRADETO THE SOUTH • EXISTING ADA ACCESSIBLE PARKING • EXISTING BLUFF & TRAILS TO REMAIN; REPAIR AS NEEDED 0 EXISTING STORM DRAIN 0 PROPOSED LOCATION FOR RELOCATED SHOWER • EXISTING SIDEWALK • EXISTING RIP RAP • EXISTING RESTROOM • EXISTING SHOWER TO BE RELOCATED
.._ C -< N S'J N 0 N 0 "'O Q) O'Q lb N N 0 -00 N Figure 4-North of Pine Avenue Ramp-Photosimulation
,_ C < N sic, N 0 N 0 ;:; (t) 3 :ti: O"l " Q.) OQ (t) N lJJ 0 -00 N OOSntfG lt.Uff 10 "lfMlh ... "" Figure S -Tamarack Avenue Restroom Ramp • CA.RlSBAD OLVD. I l KEY 0 PROPOSED 8'-0"WIDE CONCRETE RAMP WITH HANDRAILING 0 PROPOSED a· ELEVATED WOOD RAMP ON STRUCTURAL COLUMNS PROPOSED STAIRCASE C, PROPOSED PLANTING AREA; TYPICAL 0 PROPOSED RETAINING WALL #------),,..,,. L 0 PROPOSED ACCESSIBLE PATH TO PARKING LOT PARKING LOT 0 EXISTING SEAWALL I 0 EXISTING RETAINING WALL -.,.,. ~ -~,1. C, EXISTINGPLANTINGAREA --~ ' ---' -.,,:•---~':--, .-1 0 EXISTINGGUARDRAILING ~...,_~ 0 RELOCATE EXISTING PICNIC TABLE TAMARACK STATE BEACH C!) RELOCATE EXISTING TRASH RECEPTACLES ~ EXISTING PICNIC TABLE e EXISTING SHOWERS AND PLAZA C, EXISTING FENCE C!) EXISTING PAVING C!) EXISTING LIFEGUARD TOWER () EXISTING AC SIDEWALK
'-c -< N ~00 N 0 N 0 ;:::; (t) 3 :ii: O'I "'O OJ ()Q (t) N .,. 0 -,, 00 N Figure 6 -Tamarack Avenue Restroom Ramp -Photosimulation
;::;: rt> 3 :ii: O'l -0 Q) (TQ rt> N V, 0 -00 N PROl'OSEO RETAININC WALL TEXTURE -~....,_~ .... PROPOSED STAIR RAILINC Figure 7 -Conceptual Design Character
...... C: < N $1) N 0 N 0 ;:;: (I) 3 :it (Tl " OJ OQ (I) N (Tl 0 --+, 00 N COA~iAl ACA\'£ Aga\• :ha•.-.ii CHAlK LIVEFOREVER 01..clty1 pulvtn.altnr• l~lANO $1 lAPOqAGON C1fn:i, :p♦c o:.a J.IAN::ANITA Arcto:r.ph)11o: x 'How1rd McM.rv,· SEASIDE DAISY Er,5t1ori g ·w,y"'lt Rodenck COASTAl C.UI.I PlANT C11nde 1• :t11ct, Figure 8 -Proposed Plant Materials DWARF COYOTE BUSH Bacchiau: p P15tott Point s;.NTA CRU: ISLAIIO BUCl(WHEAT hogonum 1tbo,t:.cer,: 4RTEf.llSIA CALIFORMICA c,1 'orn11 :1gt!'•L1:I-, WllD UL.AC Cur:othu:. m.1r,t1m1.1: REO SUCKWHU.T Enogor~m gnnd1 r .1bt:ctn: ISLAND SHRUB MALLOW L•-.·11e,11:;:ur5tnt Ro,. $EA OAHU~ Co,eop:1: m•nt1rr,• BEACH STRAWBERRY F"S•ml cni.ou,: :. COA~AL El ICELJA Enct:111 u'1form'-1
4.3 Opinion of Probable Construction Costs
The project team developed a planning level opinion of probable construction costs for the ramps. The
estimated cost, including design and CEQA clearance, was $2.SM for each ramp. A breakdown of
costs can be found in Appendix F.
4.4 CEQA Clearance
The project team completed an evaluation of environmental constraints to help transition into the next
phase of the project. The biggest constraint are the existing biological resources that would be
impacted by construction. However, these impacts can be mitigated. The Environmental Constraints
Analysis Table can be found in Appendix G.
July 28, 2020 Item #6 Page 27 of 82
Page I 20
Appendix A
Pedestrian Activity Analysis
Carlsbad ADA Beach Access
Item #6 F,51~ig;~iWf'~2
c:: ::c
"'" N
.!:
U'I C C -~ ... U'I QI
-0
QI Cl.
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0
CARLSBAD ADA BEACH AND LAGOON ACCESS FEASIBILITY PROJECT
PEDESTRIAN ACTIVITY ANALYSIS
24-Hr Pedestrian Activity -Friday, August 10, 2018
Total Pedestrian
Location Counts Peak Hour Peak Hour Volume
7 -Tamarack Blvd 2,162 7:00 PM 203 Stairway
8 -Tamarack State
Beach Access Road 1,140 7:00PM 138
Walkway
24-Hr Pedestrian Activity -Saturday, August 11, 2018
Total Pedestrian
Location Counts Peak Hour Peak Hour Volume
1 -Pine Avenue Beach
Access Ramp 5,720 7:00 PM 536
2 -Sycamore Avenue 1,599 2:00 PM 191 Stairway
3 -Maple Avenue 1,249 1:00 PM 126 Stairway
4 -Cherry Avenue 2,042 Stairway 7:00 PM 206
5 -Hemlock Avenue 1,686 Stairway 4:00PM 173
6 -Cold-Water Inlet
Stairway 1,007 9:00AM 120
7 -Tamarack Blvd
Stairway 3,477 7:00 PM 316
8 -Tamarack State
Beach Access Road 1,758* 7:00 PM 215*
Walkwav
*Pedestrian volumes obtained using ratios developed based on counts from Friday, August
10th
Pedestrian Activity
■ • ■ ■ -I
1 -Pine Avenue 2 -Sycamore 3 -Maple 4-Cherry 5 -Hemlock 6 -Cold-Water 7 -Tamarack
Beach Access Avenue Avenue Avenue Avenue Inlet Stairway Blvd Stairway
Ramp Stairway Stairway Stairway Stairway
Beach Access Location
Location 1 -Pine Avenue Beach Access Ramp experienced the highest pedestrian activity with 5,720
pedestrians.
8 -Tamarack
State Beach
Access Road
Walkway
Location 6 -Cold-Water Inlet Stairway experienced the lowest pedestrian activity with 1,007 pedestrians.
July 28, 2020 Item #6 Page 29 of 82
9/26/2018
July 28, 2020
PEDESTRIAN BEACH ACCESS STUDY
SATURDAY -AUGUST 11, 2018
CHY:
PROJECT:
CARLSBAD
PTDlS-0810-02
LOCATION 1-Pine Avenue Beach Access Ramp
1 00:00 ➔ 01 :00 31
2 01:00 ➔ 02:00 33
3 02:00 ➔ 03:00 0
4 03:00 ➔ 04:00 0
5 04:00 ➔ 05:00 2
6 05:00 ➔ 06:00 15
7 06:00 ➔ 07:00 75
8 07:00 ➔ 08:00 189
9 08:00 ➔ 09:00 325
10 09:00 ➔ 10:00 447
11 10:00 ➔ 11 :00 361
12 11 :00 ➔ 12:00 418
13 12:00 ➔ 13:00 388
14 13:00 ➔ 14:00 410
15 14:00 ➔ 15:00 371
16 15:00 ➔ 16:00 360
17 16:00 ➔ 17:00 363
18 17:00 ➔ 18:00 426
19 18:00 ➔ 19:00 436
20 19:00 ➔ 20:00 536
21 20:00 ➔ 21 :00 316
22 21 :00 ➔ 22:00 96
23 22:00 ➔ 23:00 69
24 23:00 ➔ 00:00 53
DAILY LOCATION TOTAL 5720
PACIFIC TECHNICAL DATA, LLC
Item #6 Page 30 of 82
July 28, 2020
PEDESTRIAN BEACH ACCESS STUDY
SATURDAY -AUGUST 11, 2018
CITY:
PROJECT:
CARLSBAD
PTDlS-0810-02
LOCATION 2 -Sycamore Avenue Stairway
1 00:00 ➔ 01:00 8
2 01 :00 ➔ 02:00 2
3 02:00 ➔ 03:00 0
4 03:00 ➔ 04:00 0
5 04:00 ➔ 05:00 4
6 05:00 ➔ 06:00 6
7 06:00 ➔ 07:00 27
8 07:00 ➔ 08:00 24
9 08:00 ➔ 09:00 71
10 09:00 ➔ 10:00 86
11 10:00 ➔ 11 :00 109
12 11 :00 ➔ 12:00 91
13 12:00 ➔ 13:00 115
14 13:00 ➔ 14:00 131
15 14:00 ➔ 15:00 191
16 15:00 ➔ 16:00 137
17 16:00 ➔ 17:00 122
18 17:00 ➔ 18:00 129
19 18:00 ➔ 19:00 105
20 19:00 ➔ 20:00 128
21 20:00 ➔ 21 :00 64
22 21 :00 ➔ 22:00 5
23 22:00 ➔ 23:00 16
24 23:00 ➔ 00:00 28
DAILY LOCATION TOTAL 1599
PACIFIC TECHNICAL DATA, LLC
Item #6 Page 31 of 82
July 28, 2020
PEDESTRIAN BEACH ACCESS STUDY
SATURDAY -AUGUST 11, 2018
CITY:
PROJECT:
CARLSBAD
PTDlS-0810-02
LOCATION 3 -Maple Avenue Stairway
1 00:00 ➔ 01:00
2 01:00 ➔ 02:00
3 02:00 ➔ 03:00
4 03:00 ➔ 04:00
5 04:00 ➔ 05:00
6 05:00 ➔ 06:00
7 06:00 ➔ 07:00
8 07:00 ➔ 08:00
9 08:00 ➔ 09:00
10 09:00 ➔ 10:00
11 10:00 ➔ 11 :00
12 · 11 :00 ➔ 12:00
13 12:00 ➔ 13:00
14 13:00 ➔ 14:00
15 14:00 ➔ 15:00
16 15:00 ➔ 16:00
17 16:00 ➔ 17:00
18 17:00 ➔ 18:00
19 18:00 ➔ 19:00
20 19:00 ➔ 20:00
21 20:00 ➔ 21:00
22 21 :00 ➔ 22:00
23 22:00 ➔ 23:00
24 23:00 ➔ 00:00
DAILY LOCATION TOTAL 1249
PACIFIC TECHNICAL DATA, LLC
7
2
0
0
4
2
8
44
55
62
88
96
74
126
116
93
107
124
95
75
54
8
8
1
Item #6 Page 32 of 82
July 28, 2020
PEDESTRIAN BEACH ACCESS STUDY
SATURDAY -AUGUST 11, 2018
CITY:
PROJECT:
CARLSBAD
PTDlS-0810-02
LOCATION 4 -Cherry Avenue Stairway
1 00:00 ➔ 01 :00 6
2 01 :00 ➔ 02:00 4
3 02:00 ➔ 03:00 6
4 03:00 ➔ 04:00 0
5 04:00 ➔ 05:00 0
6 05:00 ➔ 06:00 4
7 06:00 ➔ 07:00 17
8 07:00 ➔ 08:00 67
9 08:00 ➔ 09:00 79
10 09:00 ➔ 10:00 95
11 10:00 ➔ 11 :00 121
12 11 :00 ➔ 12:00 155
13 12:00 ➔ 13:00 137
14 13:00 ➔ 14:00 158
15 14:00 ➔ 15:00 149
16 15:00 ➔ 16:00 189
17 16:00 ➔ 17:00 180
18 17:00 ➔ 18:00 154
19 18:00 ➔ 19:00 156
20 19:00 ➔ 20:00 206
21 20:00 ➔ 21:00 62
22 21:00 ➔ 22:00 27
23 22:00 ➔ 23:00 23
24 23:00 ➔ 00:00 47
DAILY LOCATION TOTAL 2042
PACIFIC TECHNICAL DATA, LLC
Item #6 Page 33 of 82
PEDESTRIAN BEACH ACCESS STUDY
SATURDAY -AUGUST 11, 2018
CITY: CARLSBAD
PROJECT: PTO 18-0810-02
LOCATION 5 -Hemlock Avenue Stairway
1 00:00 ➔ 01 :00 4
2 01:00 ➔ 02:00 0
3 02:00 ➔ 03:00 0
4 03:00 ➔ 04:00 2
5 04:00 ➔ 05:00 2
6 05:00 ➔ 06:00 3
7 06:00 ➔ 07:00 27
8 07:00 ➔ 08:00 68
9 08:00 ➔ 09:00 57
10 09:00 ➔ 10:00 93
11 10:00 ➔ 11 :00 81
12 11 :00 ➔ 12:00 121
13 12:00 ➔ 13:00 115
14 13:00 ➔ 14:00 172
15 14:00 ➔ 15:00 150
16 15:00 ➔ 16:00 134
17 16:00 ➔ 17:00 173
18 17:00 ➔ 18:00 145
19 18:00 ➔ 19:00 111
20 19:00 ➔ 20:00 124
21 20:00 ➔ 21 :00 39
22 21 :00 ➔ 22:00 35
23 22:00 ➔ 23:00 24
24 23:00 ➔ 00:00 6
DAILY LOCATION TOTAL 1686
PACIFIC TECHNICAL DATA, LLC
July 28, 2020 Item #6 Page 34 of 82
July 28, 2020
PEDESTRIAN BEACH ACCESS STUDY
SATURDAY -AUGUST 11, 2018
CITY:
PROJECT:
CARLSBAD
PTD18-0810-02
LOCATION 6 -Cold-Water Inlet Stairway
1 00:00 ➔ 01 :00 5
2 01 :00 ➔ 02:00 0
3 02:00 ➔ 03:00 0
4 03:00 ➔ 04:00 0
5 04:00 ➔ 05:00 0
6 05:00 ➔ 06:00 3
7 06:00 ➔ 07:00 34
8 07:00 ➔ 08:00 68
9 08:00 ➔ 09:00 111
10 09:00 ➔ 10:00 120
11 10:00 ➔ 11 :00 101
12 11 :00 ➔ 12:00 49
13 12:00 ➔ 13:00 54
14 13:00 ➔ 14:00 36
15 14:00 ➔ 15:00 48
16 15:00 ➔ 16:00 41
17 16:00 ➔ 17:00 70
18 17:00 ➔ 18:00 63
19 18:00 ➔ 19:00 78
20 19:00 ➔ 20:00 69
21 20:00 ➔ 21 :00 32
22 21 :00 ➔ 22:00 21
23 22:00 ➔ 23:00 2
24 23:00 ➔ 00:00 2
DAILY LOCATION TOTAL 1007
PACIFIC TECHNICAL DATA, LLC
Item #6 Page 35 of 82
ADA Beach Access -Tamarack Blvd Stairway
Fri Aug 10, 2018
Full Length (12AM-12AM (+2))
All Classes (Pedestrians, Pedestrians, Bicycles, Bicycles)
All Channels
ID: 553192, Location: 33.147429, -117.345717
Leg North
Direction Southbound
Time T
2018-08-10 12:00AM 0
1:00AM 0
2:00AM 0
3:00AM 0
4:00AM 0
5:00AM 1
6:00AM 17
7:00AM 31
8:00AM 29
9:00AM 51
10:00AM 81
11:00AM 76
12:00PM 100
1:00PM 86
2:00PM 74
3:00PM 69
4:00PM 83
5:00PM 70
6:00PM 70
7:00PM 79
8:00PM 45
9:00PM 25
10:00PM 9
11:00PM 3
2018-08-1112:00AM 1
1:00AM 2
2:00AM 0
3:00AM 0
4:00AM 1
5:00AM 7
6:00AM 30
7:00AM 59
8:00AM 71
9:00AM 91
10:00AM 111
11:00AM 147
12:00PM 122
1:00PM 156
2:00PM 156
3:00PM 113
4:00PM 116
5:00PM 126
6:00PM 136
7:00PM 117
8:00PM 66
9:00PM 30
10:00PM 4
11:00PM 0
Total 2661
% Approach 100%
% Total 47.2%
Pedestrians ol
% Pedestrians 0%
1. 1. ,o ,n,n Bicycles ol
--· 1 --, ----
App
0
0
0
0
0
1
17
31
29
51
81
76
100
86
74
69
83
70
70
79
45
25
9
3
1
2
0
0
1
7
30
59
71
91
111
147
122
156
156
113
116
126
136
117
66
30
4
0
2661
-
47.2%
0
0%
0
South
Provided by: City of Carlsbad (CA)
1635 Faraday Ave, Carlsbad, CA, 92008, US
Northbound
T App Int
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
2 2 3
8 8 25
35 35 66
32 32 61
37 37 88
45 45 126
86 86 162
88 88 188
105 105 191
86 86 160
109 109 178
109 109 192
97 97 167
87 87 157
124 124 203
88 88 133
19 19 44
1 1 10
5 5 8
1 1 2
2 2 4
1 1 1
0 0 0
0 0 1
4 4 11
9 9 39
49 49 108
70 70 141
87 87 178
82 82 193
101 101 248
113 113 235
142 142 298
168 168 324
163 163 276
191 191 307
143 143 269
162 162 298
199 199 316
79 79 145
28 28 58
19 19 23
2 2 2
2978 2978 5639
100% --
52.8% 52.8% -
01
0% 0% 0% ,~.ot #6 Page 36 of 82 1 of 15
Leg North South
Direction Southbound Northbound
Time T App T App Int
% Bicycles 0% 0% 0% 0% 0%
Pe de strians 2661 2661 2977 2977 5638
% Pe des trians 100% 100% 100% 100.0% 100.0%
Bicycles 0 0 1 1 1
% Bicycles -0% 100% 0 Slc1 0.0%
*T: Thru
July 28, 2020 Item #6 Page 37 of 82 2 of 15
ADA Beach Access -Tamarack State Beach Access Road Walkway
Fri Aug 10, 2018
Full Length (12AM-9:45AM (+1))
All Classes (Pedestrians, Pedestrians)
All Channels
ID: 554529, Location: 33.147551, -117.345407
Leg North
Provided by: City of Carlsbad (CA)
1635 Faraday Ave, Carlsbad, CA, 92008, US
South
Direction Southbound Northbound
Time T App T App fut
2018-08-10 12 :00AM 0 0 0 0 0
12:15AM 0 0 0 0 0
12:30AM 0 0 0 0 0
12:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
1:00AM 0 0 0 0 0
1:15AM 0 0 0 0 0
1:30AM 0 0 0 0 0
1:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
2:00AM 0 0 0 0 0
2:15AM 0 0 0 0 0
2:30AM 0 0 0 0 0
2:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
3:00AM 0 0 0 0 0
3:15AM 0 0 0 0 0
3:30AM 0 0 0 0 0
3:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
4:00AM 0 0 0 0 0
4:15AM 0 0 0 0 0
4:30AM 0 0 0 0 0
4:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
5:00AM 0 0 0 0 0
5:15AM 1 1 0 0 1
5:30AM 1 1 0 0 1
5:45AM 1 1 2 2 3
Hourly Total 3 3 2 2 0
6:00AM 0 0 2 2 2
6:15AM 2 2 1 1 3
6:30AM 0 0 4 4 4
6:45AM 2 2 3 3 5
Hourly Total 4 4 10 10 0
7:00AM 4 4 5 5 9
7:15AM 13 13 3 3 16
7:30AM 15 15 7 7 22
7:45AM 7 7 9 9 16
Hourly Total 39 39 24 24 0
8:00AM 7 7 5 5 12
8:15AM 3 3 10 10 13
8:30AM 5 5 4 4 9
8:45AM 6 6 4 4 10
Hourly Total 21 21 23 23 0
9:00AM 11 11 7 7 18
9:15AM 11 11 5 5 16
9:30AM 18 18 7 7 25
9:45AM 13 13 5 5 18
Hourly Total 53 53 24 24 0
10:00AM 12 12 7 7 19
10:15AM 18 18 11 11 29
10:30AM 13 13 3 3 16
.I "'\n .-,,-..... n 10:45AM 10 10 3 -~ 3 ~~ r --13
JU I y £.U1 £.V£.V llC: -I U6'--,JU VI ~~ I of 13
Leg North South
Direction Southbound Northbound
Time T App T App Int
Hourly Total 53 53 24 24 0
11:00AM 16 16 5 5 21
11:15AM 8 8 4 4 12
11:30AM 19 19 7 7 26
11:45AM 14 14 18 18 32
Hourly Total 57 57 34 34 0
12:00PM 4 4 1 1 5
12:15PM 6 6 7 7 13
12:30PM 6 6 5 5 11
12:45PM 9 9 8 8 17
Hourly Total 25 25 21 21 0
1:00PM 3 3 4 4 7
1:15PM 10 10 9 9 19
1:30PM 15 15 5 5 20
1:45PM 0 0 4 4 4
Hourly Total 28 28 22 22 0
2:00PM 8 8 3 3 11
2:15PM 12 12 5 5 17
2:30PM 12 12 18 18 30
2:45PM 1 1 4 4 5
Hourly Total 33 33 30 30 0
3:00PM 13 13 4 4 17
3:15PM 17 17 3 3 20
3:30PM 8 8 4 4 12
3:45PM 14 14 14 14 28
Hourly Total 52 52 25 25 0
4:00PM 20 20 12 12 32
4:15PM 12 12 10 10 22
4:30PM 16 16 8 8 24
4:45PM 10 10 15 15 25
Hourly Total 58 58 45 45 0
5:00PM 8 8 4 4 12
5:15PM 16 16 7 7 23
5:30PM 6 6 9 9 15
5:45PM 9 9 3 3 12
Hourly Total 39 39 23 23 0
6:00PM 13 13 4 4 17
6:15PM 6 6 6 6 12
6:30PM 23 23 13 13 36
6:45PM 31 31 4 4 35
Hourly Total 73 73 27 27 0
7:00PM 19 19 19 19 38
7:15PM 12 12 8 8 20
7:30PM 32 32 6 6 38
7:45PM 30 30 12 12 42
Hourly Total 93 93 45 45 0
8:00PM 24 24 13 13 37
8:15PM 21 21 10 10 31
8:30PM 15 15 2 2 17
8:45PM 1 1 1 1 2
Hourly Total 61 61 26 26 0
9:00PM 3 3 3 3 6
9:15PM 0 0 5 5 5
9:30PM 2 2 6 6 8
9:45PM 1 1 5 5 6
Hourly Total 6 6 19 19 0
10:00PM 0 0 0 0 0
10:15PM 0 0 1 1 1
10:30PM 4 4 2 2 6
10:45PM 4 4 0 0 4
July 28, 2020 Item #6 Page 39 of 82 2 of 13
Leg North South
Direction Southbound Northbound
Time T App T App Int
Hourly Total 8 8 3 3 0
11:00PM 0 0 2 2 2
11:15PM 1 1 2 2 3
11:30PM 0 0 0 0 0
11:45PM 0 0 2 2 2
Hourly Total 1 1 6 6 0
2018-08-1112:00AM 0 0 0 0 0
12:15AM 0 0 0 0 0
12:30AM 0 0 0 0 0
12:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
1:00AM 0 0 0 0 0
1:15AM 0 0 3 3 3
1:30AM 0 0 0 0 0
1:45AM 0 0 0 0 0
Hourly Total 0 0 3 3 0
2:00AM 0 0 0 0 0
2:15AM 0 0 0 0 0
2:30AM 0 0 0 0 0
2:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
3:00AM 0 0 0 0 0
3:15AM 0 0 0 0 0
3:30AM 1 1 3 3 4
3:45AM 1 1 0 0 1
Hourly Total 2 2 3 3 0
4:00AM 0 0 0 0 0
4:15AM 0 0 0 0 0
4:30AM 0 0 0 0 0
4:45AM 0 0 0 0 0
Hourly Total 0 0 0 0 0
5:00AM 0 0 0 0 0
5:15AM 0 0 0 0 0
5:30AM 0 0 1 1 1
5:45AM 3 3 1 1 4
Hourly Total 3 3 2 2 0
6:00AM 1 1 2 2 3
6:15AM 3 3 2 2 5
6:30AM 7 7 4 4 11
6:45AM 7 7 1 1 8
Hourly Total 18 18 9 9 0
7:00AM 7 7 6 6 13
7:15AM 8 8 11 11 19
7:30AM 8 8 8 8 16
7:45AM 7 7 5 5 12
Hourly Total 30 30 30 30 0
8:00AM 8 8 19 19 27
8:15AM 21 21 19 19 40
8:30AM 11 11 13 13 24
8:45AM 10 10 5 5 15
Hourly Total 50 50 56 56 0
9:00AM 15 15 12 12 27
9:15AM 14 14 18 18 32
9:30AM 18 18 8 8 26
9:45AM 2 2 1 1 3
Hourly Total 49 49 39 39 0
Total 859 859 575 575 1434
%Approach 100% -100% --
% Total 59.9% 59.9% 40.1% 40.1% -
Pedestrians ol 0 ol
July 28, 2020 Item #6 Page 40 of 82 3 of 13
Leg North South
Direction Southbound Northbound
Time T App T App Int
% Pedestrians 0% 0% 0% 0% 0%
Pedestrians 859 859 575 575 1434
% Pedestrians 100% 100% 100% 100% 100.0%
*T: Thru
July 28, 2020 Item #6 Page 41 of 82 4 of 13
Page I 21
Appendix B
Vegetation Constraints Memorandum
Carlsbad ADA Beach Access
Item #6 F49~iM;~iWf~2
AE'COM
Memorandum
To
cc
Subject
From
Date
Matt Capuzzi, Chen Ryan
AECOM
401 West A Street
Sutte 1200
San Diego, CA 92101
www.aecom.com
ADA Accessibility -Vegetation Constraints Review
Cindy Kinkade, AECOM
December 20, 2018
619.610.7600 tel
619.610.7601 fax
Page 1
Various siting options for ADA access to Carlsbad State Beach along Carlsbad Boulevard between
Pine Avenue and Tamarack Avenue are currently being considered. One consideration in siting may
be quality and density of native vegetation along the existing bluff. To aid in siting considerations that
may minimize impacts to native habitats, this qualitative assessment was conducted of bluff habitats
supporting native plants along the coastal bluffs in the project vicinity. Bluffs in the project area have
received various levels of habitat restoration/enhancement in recent years through the coordinated
efforts of the City of Carlsbad, Carlsbad State Park, and community volunteers. These restoration
activities have included the installation of irrigation systems, the planting of native species, and the
treatment and removal of invasive species. Specific areas within the proposed project area continue
to be characterized by sparse vegetation and/or bare patches and/or the presence of non-native ·or
invasive species.
This assessment included a field inspection of the site to determine species composition and relative
cover values for native plants, non-native plants, and unvegetated areas. Bluff habitats were divided
into areas (polygons) of similar cover proportions and depicted on a map (attached). Relative cover
values (totaling 100%) were assigned to each polygon by visual inspection of recent aerial imagery
(SANDAG 2017) and comparison to a California Native Plant Society cover diagram
(https://cnps.org/wp-content/uploads/2018/03/percent cover diag-cnps.pdO.
Common native species observed in the study area included coast prickly pear (Opuntia littora/is},
California fuchsia (Epilobium canum), seacliff buckwheat (Eriogonum parvifolium), California boxthorn
(Lycium californicum), coastal goldenbush (/socoma menziesit), coast cholla (Cylindropuntia
prolifera), and California encelia (Ence/ia californica). Common non-native species observed
included, ngaio (Myoporum laetum), sea lavender (Limonium perezi1), and natal plum (Carissa
macrocarpa).
On the basis of the relative cover values, each of the 12 mapped polygons was then ranked from
highest potential impact to native plant resources (Rank of 1) to lowest potential impact to native plant
resources (Rank of 12) on the basis of the assigned cover value using the following assumptions:
► Higher relative cover value of native plant implies higher potential impacts
► Higher relative cover value of non-native plants implies lower potential impacts
► Higher relative cover value of unvegetated implies lower potential impacts
The assigned cover values and overall rank are presented in the attached table, and a graphical
representation of the overall ranking is presented in the attached figure.
July 28, 2020 Item #6 Page 43 of 82
A:COM
't:I
QI QI ... > Ill ·.:; ...
QI Ill QI 0.1) > z QI ·.:; C > Ill 0 C z z :::, ... ... ...
QI QI QI
Vegetation Polygon > > > 0 0 0 u u u (North to South) ~ ~ ~ Rank
A 20 5 75 8
B 15 5 80 11
C 60 10 30 4
D 35 10 55 6
E 80 0 20 3
F 15 5 80 9
G 15 0 85 10
H 0 60 40 12
80 5 15 1
J 80 15 5 2
K 25 15 60 7
L 75 0 25 5
The vegetation assessment provides a ranking for potential habitat impacts associated with
construction of ADA access along Carlsbad Boulevard. Polygons with the highest ranking
(red on the attached figure) would result in the lowest degree of impact to native and/or
dense vegetation along the bluffs, while those with lower rankings (green on the attached
figure) represent those areas that should be avoided if feasible. For example, Polygon I has
the lowest ranking of 1 and would result in the highest amount of impacts to native and/or
dense vegetation, therefore this area should be avoided if possible. Polygon H has the
highest ranking of 12 and would result in the least amount of impacts. Impacts to this
resource represent one consideration among many, and may help inform siting efforts for
the proposed project. Please feel free to contact me at (619) 610-7801 or
cindy.kinkade@aecom.com to discuss the project and we will expedite any requests for
additional information.
Sincerely,
Cindy Kinkade
AECOM Project Manager
Attachments:
ADA Accessibility Habitat Value Assessment Map
July 28, 2020 Item #6 Page 44 of 82
Source: SANDAG 2017
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Page I 22
Appendix C
Existing Conditions Analysis
Carlsbad ADA Beach Access
Item #6 Ff>p1~iM;~6~f~2
~ 3 .. "" -c .. "" (1) ... " a l:'.l 6tilU\IAIOl-l$.Sff RlOUllltO Jl:MIP tDIOTH • 390.0 n Slope_.. ToW. '"'"'" .. w:n1m11m51ape ........ s ... "°'" 1 0 "' ■ 2 4:1 2.5:1 J 2.~1 z:1 ■ • c.RCA T[R 'MAN 2: I ■ (City of Carlsbad CHEN ♦RYAN X11.0 6~Q.l'l'AlQJ.o.H.Jff fltCUIRCO II.AW' LOICl'M ,. 4.lU n " ,.. Carlsbad ADA Beach and Lagoon Access Feasibility Study Sheet 1 of 5
C -< "' ,10 "' 0 l:l -0 ., "" ft) .,. 0, ~ 0, "' ----Sopu':~ -. .._.....,. --Colo, 1 • "'' ■ 2 "'' '""' • ,.,., ~· ■ . CREAmt ?tw.12:1 ■ (city of Carlsbad CHEN .,.RYAN -----------------SYCAMORE AVENUE STAIRS Carlsbad ADA Beach and Lagoon Access Feasibility Study Sheet 2 of 5
- ------.-----------~--r-=:;:-,.-.,....,.,--,.~c--=.--=T--,~ ..,_..._ -.-HEMLOCK AVENUE i .....,,_ I I ;::. _ _.w ----"""" <I) 0 .. , ■ 3 .. .. , ,..., "' 2.S:l "" ■ 0l!A TEJI lHA.._. 2: I ■ l ~ I -0 .., .. II) .,, (city of ,,, s. CHEN RYAN <lO N Carlsbad Carlsbad ADA Beach and Lagoon Access Feasibility Study " ,,, .,, I SC11.t::1"-.tJ1 I Sheet 3 of 5 I
c '< N s,o 1:5 N 0 ;; 3 .. "' sao,u loble ...... M.Wl'\'num Skip• Watdn,u,n Slosi,e Colo, ' 0 4:1 ■ ' "'' ,.,., ' ,.,., ~· ■ . CiR[A T0t lH.lH 2:-1 ■ (Cityof Carlsbad CHEN RYAN t9 r ,.. ... ~,·-:ro" Carlsbad ADA Beach and Lagoon Access Feasibility Study Sheet 4 of 5
~ C < "' _oo "' 0 "' 0 ;;; 3 .. "' ~ < "" u < er < :::i; ~ Slop11s lolile uw LUUrnl -:,,.o n .f' ....._ Xt7.D ~ 61tt'1.LVA1N:IN,. It.On lttCWttD._...lLIC1'tl•.utJn """"" M'°'1r!'um Slo9e '4011'"-n Slop• ..... I 0 '" • "' 2.5:1 J ..,., ~· • CiREAT£ft lHAH 2:1 ( City of Carlsbad • • • CHEN RYAN ( CARLSBAD BLVD It.IN n.t\111110ft• UO r, lttDUIWI RAW llNCtM • lOt.O n " ,. ,,,. "' Carlsbad ADA Beach and Lagoon Access Feasibility Study Sheet 5 of 5
Page I 23
Appendix D
Pine Avenue and Tamarack Avenue Ramp Options
Carlsbad ADA Beach Access
Item #6 Ff>f~iM;~i~f'l§,2
;;; 3 ~~ ~:::2S'IL1',,C""t~O•t.lli "0 ., .. "' w Sl. •• I SCHMIOT ~ •• • DESIGN • 0 GROUP ~~""-WlilG'-'DlcaCAN'CMi UC.C,UIJIIW.'ll'tl~)«Jp ---PINE A VE RAMP CARLSBAD BEACH AND LAGOON CARLSBAD, CA Project Number: 18-106 Date: June 3, 2019
... ~ ••• , SCHMIDT ~ .\. DESIGN ••• GROUP IJ'IO~k.WIIIG '-'°"91-CANTOI, ... ,,.,... UC.CA}l•lt(r.'Mtl~kUf PINE AVE RAMP CARLSBAD BEACH AND LA.GOON CARLSBAD, CA r..r-, @ 0 to 20 40 ICM.E: r•20"-0" Project Number: 18-106 Date: June 3, 2019
_,,,.,.... ~'""-'-..... :---------:,:..,,-.,,.$ / . ~~;-f',____ "0 OJ ~ 2, ··: DESIGN V1 I SCHMIDT ~ :.. GROUP it.,1,A,,Cii.MO--.<AW'Clt i=N\'lltl/lJ.M'l}lf IOIMNH..__,.;(IIM AVE RAMP PINE LAGOON B ACH AND CARLSBADCA!.sBAD, CA / ~ .. ·~~ ---:~ ---~ . ------~ -------
~ _,__. tl,S' -_: ___ . V / ~~J\__ ~ ---,-I. vu:, . .-, , • ..,..._..,. ~-1&-z 34'=2.S~. _,, /"--==--~-.... ~-----AVE RAMP PINE LAGOON B ACHAND CARLSBAD E CA CARLSBAD,
i \ /~ ~/~ /~ ~ --~~~~~=§~7-;:;;;;;;;;;=;;;;;;:::;.;;;.;;;;.;;;-,~~~-=::;;::::::;~~:S::-/ '---~------,=-' _,,.-, /'if> ~~·c~e ., .,, "' OQ ••• I SCHMIOT j) • DESIGN • 0 I GROUP Qlo,l~~,,_. ~C ,._..._~U9ll00 t~}')N<M,J' llC..U11.ll1Wl'91.U).&IJ, .KKl,\fCITM.MGlf.COM I / / / TAMARACK -OPTION 1 (10' wide) CARLSBAD BEACH AND LAGOON CARLSBAD, CA -:=-_.,,.,___--t<-=-=---- - - ----/ ,,,_____ r,__r----, 0 10 20 40 SCALE: 1•; 20'-0" Project Number: 18-106 0ate: March 6, 2019
-0 ., "" 0 *•· SCHMIDT ~• • DESIGN • GROUP tJlo).__, .. ~ ~O lMo(),q,t,C.OZIC,C, IM"~k>J,t.: L'(,CA1Llll~l'9ti\l)JU, KHM!DfO(UG,fll.COM y ,,,....-I /' j / / /_ ,,/ / / ~ !§lE: ~ ~ I TAMARACK -OPTION 2 (6' wide) CARLSBAD BEACH AND LAGOON CARLSBAD, CA ,,~,/' ,, ~ ~ // ri....r--, 0 10 20 40 SCALE : 1" = 20' --0" Project Number: 18-106 Date: March 6, 2019
*·· SCHMIOT jD • DESIGN ••• GROUP oio.,.__,...,y.;...,uc;~o.,.,..,.,~ "":ww CC 0.lllll'Nll'JIAZJ~lff ~OfCl(;H.(C',M I i ,1/ / / / TAMARACK -OPTION 2 (10' wide) CARLSBAD BEACH AND LAGOON CARLSBAD, CA 0 r 10 20 40 SCALE: 1" = 20'-0" Project Number: 18-106 Date: March 6, 2019
Page I 24
Appendix E
Pine Avenue and Tamarack Avenue Ramps
Carlsbad ADA Beach Access
Item #6 F,9~iMii31cf~f~2
'-'"'--------~;=;.......:..::.......,.... ____ ~'ilMI~ 0 \S -----S"TA ~----------------~-:-, .... ~ ••• , SCHMIDT ~ .< . DESIGN • GROUP 010.._..k.Wl,,Ci.~~CA•llM .......... UC.CAlllfl~llfjA,t,-i:,. w-.--•K'i!.£OU PINE AVE RAMP CARLSBAD BEACH AND LAGOON CARLSBAD, CA n.r-i G 01020 -40 ~=r•zr:r"1' Project Number: 18-106 Date: July 1, 2019
c < "' !JO "' 0 ~ i; 3 8; .,, ., "" "' I SCHMIDT DESIGN GROUP IJIO...,__k..,.._C..,....Oll'tll,CA""°"-"'"'"" U(.CA1'1• MIM .lJ')IO, ,,-~.cou CARU8AO BOULEVARO EXISTING SEAWALL NEW STAIRS EXISTING LIFEGUARD TOWfR PORTION OF PATKWAY TO BE EL!\fATEOOVfR SlOPE EXISTING SEATWAU TOREMAlN TAMARACK RAMP BEACH ACCESS CARLSBAD BEACH AND LAGOON CARLSBAD, CA r..r-, o 10 20 .-o ICAiJ: t'•'l(f"1 Projut Number: 11-106 Data: April S, 201~
Page I 25
Appendix F
OPCC and Structures Estimate
Carlsbad ADA Beach Access
Item #6 F,9~igifriWf'~2
;:; (I) 3 =1:1: en -,::, OJ CJ'Q (I) en .i::,. 0 -h 00 N Carlsbad ADA Beach Access Feasibility Study Opinion of Probable Construction Costs ADA Beach Access Type Structural Raised ramp (1) supported on pile extensions at each landing Lump Sum Civil .··. Site Prep, Clearing and Grubbing, Traffic Control, Staging, Erosion Control, Staking, Utility Adjustments, BMPs Lump Sum Landscape & Aesthetics .. Landscape, Irrigation, Custom Railings, Etc. Lump Sum Engineering & Environmental .· CEQA and PS&E Lump Sum Cost includes 25% contingency Cost does not include escalation ·.·· .· .. TOTAL from Carlsbad $1,700,000.00 ' $500,000.00 $300,000.00 .. $300,000.00 $2,800,000.00
TY-LIN INTERNATIONAL Carlsbad ADA Beach Access Feasibility Study Preliminary Structures Cost Estimate ~ 1. ADA Beach Access from Carlsbad Boulevard -< NStructure Type: Raised ramp supported on pile extension at each landing. SX) N 0 N 0 "'O OJ (1Q (1) CTI V, 0 -00 N Ramp Length 476 Ramp Width 10 Ramp Area= 4,760 Cost/ SF= $ 325 Structure Cost= $ 1,547,000 For Budget, Use! $ 1,600,000 ! ft ft SF Based on information provided by Chen Ryan Associates via email on 1/2/19. As requested by City during February PDT meeting Based on previous projects with similar structure type and Caltrans Comparative Bridge Costs, scaled by the appropriate Bridge Cost index ratio. 48" CIDH Piles assumed at each landing. Includes 25% Contingency D. Kasawdish 2/20/2019
Page I 26
Appendix G
Environmental Constraints Table
Carlsbad ADA Beach Access
Item #6 F;s7~iMi~5gif'~2
C: -< "' _co N 0 ~ Carlsbad ADA Beach Access Feasibility Study-Environmental Constraints Analysis Table Alternatives Summary The Pine Avenue Americans with Disabilities Act (ADA) Ramp project would involve constructing an ADA compliant ramp that begins at lhe parking lot north of the intersection of Pine Avenue and Carlsbad Boulevard. The 389-foot ramp would change direction once, extending the pathway southward within the btuffs. The ramp would be designed with an incline of 7.8 percent One bench would be installed at the top of the ramp to provide a viewing point for the public. The ramp would be elevated as it descends the bluff, ranging at distances of approximately 2 to 9 feet above the existing bluff below. Two or three disabled parking places would be designated in the existing parking lot. The proposed Tamarack Avenue ADA Ramp is approximately 3,500 feet south of the Pine Avenue ADA Ramp, across from the intersection of Tamarack Avenue and Carlsbad Boulevard. The ramp would begin at the top of the bluff near existing facilities (i.e., showers, plaza, and restrooms) and would extend southward, parallel to the existing access road to the California State Parks (State Parks) parking lot. Current facilities at this access point are not ADA accessible. Construction of the Tamarack Avenue ADA Ramp would create an ADA compliant pathway and would generally improve public access to the beach and Lower Sea Wall at this access point. The existing road/sidewalk south of the proposed ramp would remain the same. Additionally, the existing staircase located perpendicular to the new ramp would be reconstructed. A portion of the ramp would be elevated along the bluff (approximately 60 percent) ranging between 2 and 5 feet above the existing bluff. The ramp would be 196 feet, starting at the access to the existing restroom, and have an incline of 7 .5 percent. The existing ramp down to the restrooms would also be rebuilt to be ADA compliant. The design of the Tamarack Avenue Ramp uses existing access points and disturbed areas to the extent possible in order to minimize impacts to the previously undisturbed bluff. Issue Area Existing Conditions/Assumptions Pine Avenue ADA Ramp Tamarack Avenue ADA Ramp Constraints Summary Aesthetics • The existing bluff is mostly unvegetated at the . Construction of the ramp would • Construction of the ramp and . Overall, the difference in aesthetics between both options proposed Pine Avenue ADA Ramp location, while begin at the existing parking lot staircase would begin al the same would be minimal aside from the existing staircase which the majorily of the bluff is vegetated (planted) near elevation (i.e., would not rise higher level of existing facilities and would would remain built to grade along the bluff. However, the the Tamarack Avenue ADA Ramp. than current bluff elevation). not rise higher than the current bluff Tamarack Avenue ADA Ramp incorporates planting to • There are no designated scenic resources in the . Landscaping of native vegetation elevation. complement the existing facilities area. The raised area. would be established adjacent to . Landscaping of native vegetation structures could be perceived as large from vantage ramp. would be established adjacent to points along the beach. However, these structures would . Design would be less intrusive ramp . be less Intrusive compared to the existing staircases compared to other existing . The existing staircase would be along this section of coastline and impacts would be structures of stairs along this updated, which is built to grade minimal. segment of beach, since this ramp along the bluff. . Both options would not interfere with pedestrian/traffic would be built closer to grade along views of the coastline. the slope of the bluff as compared to existing staircases along the coasUine. Air Quality . It is assumed that no operational sources are . Potential impacts due to . Potential impacts due to . Potential air qualily impacts related to construction of the associated with either option; therefore, only construction would be temporary. construction would be temporary. proposed ramps would be similar between the two construction impacts are evaluated. Standard construction equipment Standard construction equipment projects. . Sensitive receptors are not located in the vicinily of would be used and applicable would be used and applicable • Air quality emissions associated with the proposed the proposed projects. avoidance and minimization avoidance and minimization projects include emissions from construction. However, measures would be implemented. measures would be implemented. operations associated with construction would minimize emissions through standard construction measures, storm water pollution prevention plan measures, and best management practices. . It is assumed impacts would not occur to sensitive receptors as none are located in the vicinity of the orooosed orolects.
Carlsbad ADA Beach Access Feasibility Study-Environmental Constraints Analysis Table Issue Area Existing Conditions/Assumptions Pine Avenue ADA Ramp Tamarack Avenue ADA Ramp Constraints Summary Biological . In the Vegetation Constraints Review Memo . Equipment staging during . Equipment staging during • The Pine Avenue ADA Ramp would have a slightly larger Resources prepared by AECOM for the proposed projects, the construction would most likely construction would most likely impact area compared to the Tamarack Avenue ADA North of Pine Avenue Ramp footprint evaluated occur in existing developed areas occur in existing developed areas. Ramp as the design of the ramp is primarily focused on along this section of bluff is identified as 20% (e.g., parking lot at top of ramp). . Impacts to vegetation may occur an undisturbed segment of bluff. Design of the Tamarack natives, 5% nonnatives, and 75% unvegetated . Impacts to vegetation may occur with installation of the ramp and Avenue ADA Ramp Incorporates the existing access (AECOM 2018a). This area has a ranking of 8 out with Installation of the ramp (e.g., staircase (e.g., vegetation footprint to the extent possible. For example, the existing of 12 (where a rank of 12 is the lowest potential vegetation removal). removal). staircase at the Tamarack Avenue ADA Ramp is in need impact to native plant resources). The Tamarack . Once constructed, the shadow . Once constructed, the shadow of repair and upgrades are proposed to the existing Avenue Ramp footprint covers two areas identified created by the ramp may shade created by the elevated portions of structure within the previously disturbed footprint. in the memo, known as t and J. These areas vegetation and could potentially the ramp may shade vegetation Additionally, the new ramp which would provide access to encompass 80% native, 5% nonnative, 15% inhibit plant growth. and could potentially inhibit plant the existing restrooms and associated improvements are unvegetated and 80% native, 15% nonnative, 5% growth. The existing staircase that within previously disturbed areas. unvegetated, respectively. They rank 1 and 2 for would be updated as part or this . In l:>oth options, vegetation is proposed along the access potential habitat impacts (where a rank of 1 is the design is currently at grade and is ramp. The ramp footprint in the Pine Avenue ADA Ramp highest potential to impact native plant resources). not expected to contril:>ute to would impact more undisturbed bluff than the Tamarack . Endangered, threatened, or proposed for shadowing effects from vegetation . Avenue ADA Ramp. However, while more undisturbed listing/rare wildlife are not known to use the bluff is expected to be impacted at North of Pine Avenue, proposed project site since habitat is low quality, this area is of lesser habitat value than the cover type fragmented vegetation interspersed with sandy bluff existing in the vicinity of the Tamarack Avenue ADA too minimal to support species. Ramp (AECOM 2018a). The Tamarack Avenue ADA . Implementation of both projects would avoid the Ramp design uses existing infrastructure at the staircase aquatic environment. and north of the public facilities, which would minimize • This area is not located within the City of Cartsbad's impacts to previously planted vegetation. Since Habitat Management Plan (HMP) and is not vegetation in the Tamarack Avenue Ramp footprint has designated as a significant wildlife corridor (City of grown in successfully, this recruitment shows temporary Carlsbad 2004). vegetation impacts along the bluff could be successfully established post-construction. Best management practices would be implemented to ensure plant establishment along the bluff in both locations. . Neither proposed project footprint functions as a terrestrial wildlife movement corridor. The movement of marine species would not be affected by the proposed projects' activities, as there would be no permanent or temporary blockage of the open water corridor. No impacts are anticipated to wildlife movement/corridors with implementation of either project. • Avoidance and minimization measures would be implemented to minimize potential impacts to wildlife species, if found, such as clearance surveys for birds or other sensitive species (e.g., silvery legless lizard, a California Department of Fish and Wildlife species of special concern) as required, or vegetation removal outside of the breedina season. CulturaVTribal • A previous records search was conducted in the . The proposed project would be . For the most part, the proposed . Standard surveys, analysis, and mitigation measures Cultural vicinity of the proposed projects for the Carlsl:>ad constructed on previously project would oe constructed on (e.g., consulting a qualified archaeologist and a Native Resources Boulevard and Tamarack Avenue Improvement undisturbed bluffs known as the previously disturbed ground, American representative, if applicable) would be Project in 2017 (AECOM 201 Bb). The records Santiago Formation (AECOM although excavation for implemented prior to and during construction because search area encompassed all of the Tamarack 2018b). Potential for impact could footings/foundations could ex1end cultural sites have been Identified within a 0.5-mile radius Avenue ADA Ramo ootion and a oortion of the Pine occur if a oreviouslv unknown into oreviouslv undisturbed bluff of the orooosed oroiect areas and the coastal reaion of 2
C -< N ,,, N :a a ii 3 .. "' Issue Area Geotechnical/G eology Carlsbad ADA Beach Access Feasibility Study -Environmental Constraints Analysis Table Existing Conditions/Assumptions Pine Avenue ADA Ramp Tamarack Avenue ADA Ramp Constraints Summary Avenue ADA Ramp footprint. The previous records resource was discovered during formations (e.g., Santiago San Diego County retains a high level of cultural search indicated 20 studies have been conducted, ground disturbing activities. Formation). Potential for impact sensitivity to Native American tribes (AECOM 201 Bb). four cultural resources were previously recorded, could occur if a previously unknown . If feasible, project design would avoid the Comfort Station and one cultural resource was identified during a resource was discovered during at the Tamarack Avenue ADA Ramp; the proposed pedestrian survey, all within a 0.5 mile vicinity of the ground disturbing activities. project would provide ADA access as well as improved proposed projects. After consulting with the Native general public access to this structure. American Heritage Council, It was determined that • The Pine Avenue ADA Ramp may present more of an no Native American places or sites were on file in opportunity to encounter unknown resources since more the vicinity of the proposed project sites. ground disturbance would occur on undeveloped bluff. . One cultural resource has been identified within the Both options would follow standard procedures for Tamarack Avenue ADA Ramp option footprint, protecting cultural resources. known as the Tamarack Avenue Comfort Station. A historical background study and determination of eligibility was prepared in 2016 and indicated that the Comfort Station is potentially eligible for listing on the California Register of Historical Resources and National Register of Historic Places (AECOM 2018b; Bevil 2016). . Separate record and Sacred Lands File searches could be completed to confirm cultural and/or tribal cultural resources are not in the proposed footprint for the Pine Avenue ADA Ramp. Given the recent results in the Cultural Resources Phase 1 Survey Report conducted for the Carlsbad Boulevard and Tamarack Avenue Improvement Project, it is assumed cultural and/or tribal cultural resources are not in the vicinity of the Pine Avenue ADA Ramo. • There are no active faults identified through . The proposed project would be . The majority of the proposed • Although loss of topsoil from project implementation is not Carlsbad, and the California Geologic Survey does constructed on a previously project would be constructed on a anticipated to be substantial, and erosion would most not include Carlsbad on list of cities affected by the undeveloped site where soil previously developed site and likely decrease with project implementation due to Alquist-Priolo Earthquake Fault Zones. However, removal would be required to install generally the same footprint as the reduced use of informal trails, in order to minimize the Carlsbad Is in a seismically active region and is piles for the elevated ramp design. existing walkway and staircase. potential impacts of soil erosion or the loss of topsoil, subject to ground-shaking during an earthquake. Potential impacts could occur with Potential impacts could occur with avoidance and minimization measures would be adopted • Geotechnical stability analyses were performed, soil removal, which would be soil removal, required to install with implementation of both options (e.g., erosion control indicating the coastal bluffs In the project area required to install piles for the piles for the elevated ramp design. and revegetalion/planling plan, City review of site grading currently have adequate factors of safety against elevated ramp design. plan to ensure compliance with code requirements). The deep instability and would not be located on an proposed project may decrease informal trail use, unstable geologic unit or on expansive soils especially in the vicinity of the Pine Avenue ADA Ramp, (AECOM 2016a). which contributes to substantial soil erosion estimated to • As stated in the General Plan, the city of Carlsbad be approximately 1 foot per year along the northern part is located within the coastal portion of the of the bluffs (AECOM 2016b). Peninsular Ranges Geomorphic Province, a region • Both options would adhere to all applicable building and characterized by northwest-trending structural seismic codes and regulations therefore, not exposing blocks and intervening fault zones (City of Car1sbad people or structures to potential substantial adverse 201 Sa). The proposed project areas consist of fill effects, including risk of loss, injury, or death due to material and terrace deposits where the base of the severe ground shaking. bluffs is characterized by the Santiago Formation . Due to the nature of the site as described under existing and relativelv resistant sandstone forms the lower conditions imoacts related to increased slooe instabilitv 3
C < N po N 0 ~ .,, ., .. "' ..... 0 g, 00 N Issue Area Greenhouse Gas Emissions Land Use Noise Recreation Carlsbad ADA Beach Access Feasibility Study -Environmental Constraints Analysis Table Existing Conditions/Assumptions Pine Avenue ADA Ramp Tamarack Avenue ADA Ramp Constraints Summary portion of the bluff (AECOM 2016a). Pleistocene landsides, or other adverse seismic-induced geologic terrace deposits compose the upper portion of the hazards are not anticipated. bluff, above an elevation of approximately 8 to 12 feet above mean sea level /AECOM 2016al. . It is assumed that no operational sources are . Standard construction equipment . Standard construction equipment . GHG emissions related to construction of the project associated with either project; therefore, only would be used and standard would be used and standard would be similar between projects. Similar construction construction impacts are evaluated. emissions controls would be emissions controls would be equipment would likely be used, and vehicle trips to the • The City of Carlsbad adopted a Climate Action Plan implemented. implemented. construction site would be similar. {CAP) that outlines actions that the city will . Both options are expected to be in compliance with the undertake to achieve its proportional share of the Carlsbad CAP and would not emit at or above the CAP state greenhouse gas (GHG) emissions reductions. screening threshold of 900 metric tons of CO2 equivalent, The CAP is a plan for the reduction of GHG as outlined in the CAP Consistency Checklist. emissions in accordance with California Additionally, both options' incremental contribution to a Environmental Quality Act {CEQA) Guidelines cumulative GHG emissions effect would not be Section 15183.5. Pursuant to CEQA Guidelines considered cumulatively considerable, because they Sections 15064(h)(3), 15130(d), and 15183(b), a would comply with requirements of the CAP. project's incremental contribution to a cumulative G HG emissions effect may be determined not to be cumulatively considerable if it complies with the reauirements of the CAP. . Both proposed projects are surrounded by . The proposed project would comply . The proposed project would comply . Both options would conform to applicable land use residential development to the east and the Pacific with applicable land use policies with applicable land use policies policies and guidelines (e.g., Coastal Act) and Ocean to the west. Both options are in the coastal and guidelines. and guidelines. appropriate resource agencies would be involved during zone and subject to regulations per the California the permitting process (e.g., California Coastal Coastal Act. Commission, California State Parks). . Proposed ramp improvements are located at . Proposed ramps would establish ADA compliant features Carlsbad State Beach, which State Parks has along the bluff, improve general public access to the jurisdiction over. beach, and would be consistent with existing land use and recreation for the area. . It is assumed that no operational sources are . Noise impacts associated with . Noise impacts associated with . Construction equipment and techniques used would be associated with either option, therefore only construction would be temporary construction would be temporary similar or the same for both projects. Potential impacts construction impacts are evaluated. and standard construction and standard construction due to construction noise would be similar or the same for • The closest noise sensitive receptors to the Pine equipment would be used. equipment would be used. both projects. Avenue ADA Ramp is a single-family residential • During construction of both projects, noise minimization structure located approximately 150 feet north of measures would be implemented and local noise the site and multi-residential units approximately ordinance would be followed as detailed in Chapter 8.4B, 150 feet east of the nearest construction boundary. Noise of the City of Carlsbad Municipal Code, which sets • The closest noise sensitive receptor to the limitations for construction hours. Tamarack Ramp Avenue option is a multi-• While the public using the beach during construction residential structure located approximately 250 feet hours may experience higher noise levels anticipated with southeast of the project limits. construction, other portions of the beach where • Given the open space and recreational nature of temporary construction noise could be avoided will both proposed project sites, public using the beach remain open for use. could be considered a sensitive noise receptor durina construction . . Existing informal trails are located along the Pine . Construction would temporarily . Construction would temporarily • Localized recreation and public access would be Avenue ADA Ramp footprint. interrupt access via informal trails. interrupt recreation and access to temporarily interrupted during construction of both During construction, multiple the beach and facilities at this projects; however, impacts between the two projects access ooints alona the coasmne location. Additionallv. multicle would be similar. Portions of oarkina lots mav be 4
c < N s,o N 0 N 0 ;:; Carlsbad ADA Beach Access Feasibility Study-Environmental Constraints Analysis Table Issue Area Existing Conditions/Assumptions Pine Avenue ADA Ramp Tamarack Avenue ADA Ramp Constraints Summary • There are multiple existing access points along this could continue to be used to access points along the coastline temporarily closed in order to stage equipment. portion of coastline, none of which are currently access the beach. could continue to be used in order Numerous existing access points between the two ADA compliant. to access the beach instead of the proposed project sites would remain available for use current access point at Tamarack during construction, including the ramp at Pine Avenue Avenue. and four staircases. These existing access areas would remain open during construction and would continue to provide adequate access to the beach during construction. If feasible, proposed project work would be conducted outside of the busy summer season. . Post-construction, recreation and access would be enhanced via the nrooosed ADA comoliant ramos. Sea Level . Both structures are subject to influence from sea • To the extent practicable, • To the extent practicable, . Structures are designed to be above the elevation of an Rise/Storm level rise but would be constructed along the structures have been designed to structures have been designed to existing boardwalk and behind a protective sea wall, Damage existing bluff above the elevation of the existing provide resilience to sea level rise provide resilience to sea level rise which protects from potential storm damage and sea level Vulnerabilitv walkwav which is nrotected bv a sea wall. scenarios. scenarios. rise influence. Transportation/ . It is assumed that no operational sources are • Traffic may be temporarily • Traffic may be temporarily • Applicable measures would be implemented during Traffic associated with either option, therefore only interrupted during construction. interrupted during construction. construction to avoid and/or minimize temporary traffic construction impacts are evaluated. impacts (e.g., timing of project work, traffic control plan). . Increased traffic to the site due to improved access is assumed to be minimal and most likely by existing users or residents using this improved route to access the beach, because the proposed project would create an ADA compliant ramp and safer/more direct N>Aestrian access. · References AECOM 2016a Geotechnical Investigations Carlsbad Boulevard and Tamarack Avenue Pedestrian Improvements Project. 2016b Tamarack Area Coastal Improvements Project Mitigated Negative Dedaration. 201 Ba ADA Accessibility -Vegetation Constraints Review. 201 Bb Cultural Resources Phase I Survey Report for the Carlsbad Boulevard and Tamarack Avenue Improvement Project. Bevil,A.D. 2016 The Tamarack Avenue Comfort Station at Carlsbad State Beach Historical Background Study and Determination of Eligibility. On file at the California Department of Parks and Recreation Southern Service Center. 3 City of Carlsbad ~ 2004 Habitat Management Plan for the Natural Communities in the City of Carlsbad. Available at: http://www.carlsbadca.gov/civicax/fllebank/blobdload.aspx?BloblD=27193. Accessed August 2016. ':l "" .. .... ... 2. 00 N 2015a General Plan. Available at: http·/Jwww.carjsbadca.gov/services/depts/planning/general.asp. Accessed July 2019. 2015b General Plan and Climate Action Plan Final Environmental Impact Report. Available at: http·/Jwww.carlsbadca.gov/civicax/filebank/blobdload.aspx?BloblD-28464. Accessed August 2016. 5
'-c: -z------------------------------------------------------------------------1 N CONCEPTUAL PL.ANS FOR: $)0 N 0 N 0 ADA BEACH ACCESS ANB TRAIL CONNECTl'.'1+¥ FEASIBILITY STUDY .,, OJ O'Q l'ROJECT SITE ...:rt ll'T\&IICET aaTl !«'fM4P ~,, ... ~ ........,..,. ~ ... ,. fllHCm)......,..,.,.., .... NINUr: 8&:TI TA.Y.NIAC«NINI.IE ..art """10fNA.A110M•T~M.NUI: ltUT7 ~l¥N:IGIICl:UI a-a:T• c:a..D ... 1tll1\.trML ~• ,,._,1'0 CNAA110N • COION.lllt T\HCl. ..U:1 ,o ~QNUrCTO. IHlaiTII P'\NrlrlMltlllW. ~A BEACH &-ffi-~ff¥ ~asibility Study ~rlsbad, California SOG Pro)cd Number: 1l-io6 D•t•: Januuy 2)1 1.01:0 CITY OF CARLSBAD, CALIFORNIA (i) CITY"°""""-~TTHN...L•""'VCIA KElrH.v.c;QUfl.N•J#.AYOfl l"AO-TCM PAHA~T.PATB.0COUNCL~R CORt IOUMCHiR. CCUfCL ~ •.z-OE'IIIVQ"N--""""""""' ... ,........, DlP\Jl'Y CITY I.WW1€J\. ---CHEN { Cicyof RYAN Carlsbad ••• 1 SCHMIDT •• • DESIGN ••• GIIDUP :::.:;:;---Mii, ........ t,.,.. \C.C,,.M[""'••,1,,1--_._.,._,..,, Shut 1 ofn ~-OJ n ::r 3 (t) :::, ,..... co
'-c: -< N SXJ N 0 N 0 ""O Q,) m : ·'!.: " ~ij . \. ---. .., ·~ ::-~~~I• .. •• .... ~1 • PINE AVENUE A:bA BEACH &,;i;RAI L GQN,N ~Gl=l1/ITY ~asibility Study CGtlsbad, California ~ Proftd Numbt:r: 11-106 Dal~ Ja.nu.a,y 23, ,.010 e TAMARACK STATE BEACH CARLSBAD Bl.VO. Key Map NTS CHEN ,,, --b) {cicyof RYAN Carlstiad ••4if I SCHMIDT •• • 0£SIGN •tile GROUP Sheet 2 or n
t't) ~DA BEACH & TRA-IL CON-Nff=FI-V+Pr'-~asibility Study tliarlsbad, California ~ Profcd Numbtr: ,a.,o6 Oatr. J.anua.ry 2J.: 2010 .. Pine Avenue l<EY 0 PROPOSEDB'-O"RAMPWITH HANDRAILING 0 2% MAX. LANDINGS;TYPICAL C, PROPOSED PLANTING AREA; TYPICAL 0 START OF ELEVATED ACCESSIBLE PATH ON STRUCTURAL COLUMNS 9 END OF ELEVATED ACCESSIBLE PATH ON STRUCTURAL COLUMNS. PATH CONTINUES AT GRADE TO THE SOUTH 9 EXISTING ADA ACCESSIBLE PARKING 0 EXISTING BLUFF & TRAILS TO REMAIN; REPAIR AS NEEDED Q EXISTING STORM DRAIN 9 PROPOSED LOCATION FOR RELOCATED SHOWER '1l) EXISTING SIDEWALK • EXISTING RIP RAP f) EXISTING RESTROOM CD EXISTING SHOWER TO BE RELOCATED []Db) { Cicyof Carlsbad ••• 1 SCHMIOT ~• & DESIGN ••• GROUP CHEN RYAN ==-tl,-..... ._(11 ... ~~NtlolMW Sheet 3 ofn
'-c -< N ,po N 0 N 0 ~A BEACH &TRAIL CON~ ~asibility Study ~lsbad, California ~ Prof.ct Numbtr. 1l•lo6 Daw. JanuaJY l), 102.0 Photo Simulation Pine Avenue Access CHEN ( Cicyof RYAN Carlsbad -'eo I scHM10T ~, • DESIGN ••• GROUP =~•----...c:•---~--•"'""-· --Sheet 4 ofn
'-) C: -< N ,00 ,--__,I 0 N 0 PRO PO SEO ACCESS RAMP ~A BEAC.H &-=FRA-lt-EeN-Nfff-lVlff ~sibility Study <t»lsbad, California strl Pr~ttt Numbf:r: 1l•1o6 O<ltt: J•r"Mmy 1), 1.oao CARLSBAD BLVD. ) TAMARACK STATE BEACH Tamarack Beach Access KEY 0 PROPOSED 8'-0"WIDE CONCRETE RAMP WITH HANDRAIUNG 8 EXISTING PLANTING AREA -_:;::;;:x~.:S.S: e EXISTING GUARDRAIUNG jt ' ,,...-• RELOCATE EXISTING PICNIC TABLE ---.......____ ____ // t!) RELOCATE EXISTING TRASH RECEPTACLES ,,-/ f) EXISTING PICNIC TABLE r,.r--, b) 0 to ,0 «I &CALI: 1'•217.o"' CHEN RYAN • EXISTING SHOWERS AND PLAZA G, EXISTING FENCE C EXISTING PAVING G) EXISTING LIFEGUARD TOWER ¢) EXISTING AC SIDEWALK ( Cicy.of Carlstiad ... Cil I SCHMIOT •• • OESIGH .5). GROUP ___ , ... ...,. ....... ,atJI'"'' .C.c.ui»trN•tM~ Sheet S of n
'-c: -< N ~00 N 0 N 0 ;, . -0 ... DJ }IDA BEACH &IR-A'IC CONl'4ECT1Vtn' ~asibility Study ODrlsbad, California ~ PrcjKt Number. 11,.106 Date: J.anuary2.3, 102.0 Photo Simulation Tamarack Beach Access CHEN (City of RYAN Carlsbad 4ilefl I scHMIDT •• • DESIGN ·~· GROUP ::,:;;:-11--c.""'.._< ... _ ,,C.C,.IOIIWlltJ~MM, --Sheet 6 ofn
N po N 0 N o. . ' .... ~.·----. . ~:---<": ~ PlllOPOSED ACCBSIBU PATH TO CAR.lStAO BOUUVAAO PROPOSED PARKING PATH ;::; (D 3 # en KEY ~A BEACH 8.+RAll:-6E>N-N-EER-v-t=F¥-!?.easibility Study ~rlsbad, California ~ Projtd Number. 1l,1o6 Oatt: J.amary Z), 'IOZO CARLSSAO BOULEVARD o PROPOSED s·-o• CONCRm WAI.KY"AY 8 PROPOSED ACCESSIBLE STRIPING 8 EXISTING PARKING STRIPING TO REMAIN 0 EXISTING SAND TO BE REMOVED AT NEW WALKWAY Tamarack Parking Access n..r,@ o 10 lO 40 ICALC: r•la-0-CH EN RYAN (_ Cicyof Carlsbad ••CJ , 5CHI.IIDT •• 5 DESIGN ••• GROUP =-----. ...... c,o. ...... ::::::::. .... _._, ~ Sheet 7 oh,
\ \ .... ,1·· .~' '" .,,,, ,/ ✓-''_, .,,..,_.. ,, . . :• 7 1/ \ ro ®A BEACH .&r+RM-G~E:Q:1¥1:i:¥-~asibility Study 03rlsbad, California £be l'fojt<I Nun,b.,: 18-106 D~I@: January 23, 2.020 Cold Water Tunnel ·----,s-CHEN RYAN 0 PROPOSED SKYLIGHT OPENING IN MEDIAN 0 PROPOSED 8'-0" INTEGRAL COLOR CONCRITT ADA RAMP 0 PROPOSED RETAINING WALLS & HANDRAILS 0 PROPOSED 18" RCP STORM DRAIN C) PROPOSED CONCRETE "V"GUTTER G EXISTING BRIDGE Q) EXISTING STAIRCASE (_ Cicyof Carlsbad ••• 1 SCHMIDT ~ • DESIGN ••• GROUP Sht.e.t t orn
11) ~A BEACH &-=f-RA+t:.-EE>MN EE'f l'v'l'Fr' ij:asibility Study Oarlsbad, California !bt; Proft<I Nl.Vttbtt: ,g.,o6 Oat~ Janua,y 2.). 2020 Photo Simulation Cold Water Tunnel Access CHEN { City of RYAN Carlsbad W&O I SCHMIDT •• S DESIGN •e@ GROUP ~ .... -c. ......... 1: .. -. I.C.C,11,-IIIJ'M~-
'-c < N po PROPOSED RETAINING WALL TEXTURE ,,...,.':.'Wa._'W&UIIII' .............. ~~ OJ (l) He?ION PROPOSED STAIR RAILING ~DA BEACH &.:f-aAJ.L-CO~N-E--C+l\4:r:¥-~asibility Study CJ:lrlsbad, California ~ Protect Numbtr. 11~1o6 D.at~ J•nua,y .2.1, :tozo PROPOSED STAIR RAILING Design Character CHEN ' ' DRAIL CHARACTER 11.'..11 II • ( Cicyof RYAN Carlsbad ••G I SCIIMIDT ••-Cl DUIGN .f.>0 GROUP -----c-.--.... u ..... ..,,. ... , WC."'1111.!»IH91Al)''" -~ Sheet 10 of n
-0 OJ (0 Agave shawii CHALK LIVEFOREVER Dudleya pulverulenta ISLAND SNAPDRAGON Galvezia speciosa MANZANITA Arctostaphyllos x 'Howard McMinn' SEASIDE DAISY Erigeron g. 'Wayne Roderick' COASTAL GUM PLANT Grindelia stricta ~DA BEACH &..IIW.L c.0N-N-EE=R-VJ:pf-~easibility Study <£nrlsbad, California ~G Ptoj«l Nwnbtr. ,a.,06 01tt: Januuy J:3. z020 DWARF COYOTE BUSH Baccharis p. 'Pigeon Point' SANTA CRUZ ISLAND BUCKWHE~T Eriogonum arborescens ARTEMISIA CALIFORNICA Califomia Sagebrush Plant Material WILD LILAC Ceanothus maritimus RED BUCKWHEAT Eriogonum grande rubescens ISLAND SHRUB MALLOW Lavatera assurgentiflora SEA DAHLIA Coreopsls maritima BEACH STRAWBERRY Fragarla chiloensis COASTAL ENCELIA Encelia californica .,:/. CHEN ( Cicyof RYAN Carlsbad ecet I scHMIDT ., C DESIGN .6). GROUP !:,':'::"'._,_.,~ow.. IIC.(AJCMU.,t,11/l,IIO!l!P Shed H ofn