HomeMy WebLinkAbout2024-02-22; South Carlsbad Boulevard Climate Adaptation Study Conceptual Designs (Districts 2 & 3); Gomez, PazTo the members of the:
CITY COUNCIL
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February 22, 2024
Council Memorandum
To:
From:
Honorable Mayor Blackburn and Members of the City Council
Paz Gomez, Deputy City Manager, Public Works
Via:
{cityof
Carlsbad
Memo ID# 2024014
Re:
Geoff Patnoe, Assistant City Manager~
South Carlsbad Boulevard Climate Adaptation Study Conceptual Designs (Districts 2 & 3)
This memorandum provides the conceptual design plans for the South Carlsbad Boulevard
Climate Adaptation Study.
Background
The city is working on a California State Coastal Conservancy grant-funded study to demonstrate
how a portion of Carlsbad Boulevard could be relocated to avoid hazards caused by sea level rise.
On June 20, 2023, the City Council unanimously approved Resolution No. 2023-184 to accept the
recommendations of the Traffic & Mobility Commission and the Beach Preservation Commission
and approve the roundabout option as the preferred design to satisfy the grant requirements.
The Coastal Conservancy grant does not include funding for the required environmental analysis,
the new road, or to design beach access points or to study potential uses for the land that could
be repurposed as a result of moving the road to the east. The conceptual designs are a required
deliverable for the grant funding for the study and must be submitted prior to the grant end date
of February 28, 2024.
Discussion
The study demonstrates how a one-mile portion of southbound Carlsbad Boulevard from
Manzano Drive to Island Way could be moved to the east, to:
• Move and protect infrastructure from hazards caused by sea level rise
• Provide a safe and efficient roadway for all modes of travel
• Promote walking, biking and other forms of active transportation
• Calm traffic along the coastline for safety
The preferred design option approved by the City Council is a two-vehicle Iane road with
roundabouts. The conceptual design plans incorporate guiding principles from other city policies
and plans, such as the Mobility Element of the General Plan, the Sustainable Mobility Plan, and
the Climate Action Plan.
Public Works Branch
Transportation Department
1635 Faraday Avenue I Carlsbad, CA 92008 I 442-339-2980 t
Council Memo -S. Carlsbad Blvd Climate Adaptation Study Conceptual Designs (Districts 2 & 3}
February 22, 2024
Page 2
The completed conceptual design plans for the study are included in Attachment A. Designs at
this early stage normally include rough layouts, traffic volumes and preliminary estimates of
construction costs. More details and coordination with nearby property owners will occur as the
design process progresses.
Next Steps
Staff will submit the conceptual designs to the Coastal Conservancy, along with other grant
deliverables, by the grant end date of February 28, 2024.
At this time, no additional funding has been included in the city's fiscal year 2023-24 budget, and
no additional funding is plan ned for the fiscal year 2024-25 budget. For future phases of this
project, additional funding will be required to complete conducting an environmental analysis,
complete the final design, permitting and construction.
There are several funding opportunities at the state and federal level to support future project
phases, such as the additional engineering and environmental analysis, and staff will continue to
pursue available funding opportunities. For example, staff requested additional funding from the
California State Coastal Conservancy to prepare technical studies for the project area. Staff
requested $200,000 in additional funding, which would be used to prepare a geotechnical
survey, biologi ca I survey and topographical analysis. At the time of writing, this request is still
pending but an update from the California State Coastal Conservancy is expected by the end of
the month, at which point the city could decide whether to accept the funds.
At the June 20, 2023, meeting, the City Council directed staff to return to the Beach Preservation
Commission (BPC} and the City Council to discuss the retreat options within the study area in
March 2024. Due to the availability and regular scheduling of the BPC meetings on even months
only, staff plan to present this item to both the BPC and the City Council in early April 2024.
Attachment: A. Conceptual designs for the South Carlsbad Boulevard Climate Adaptation Project
cc: Scott Chadwick, City Manager
Cindie McMahon, City Attorney
Gary Barberio, Deputy City Manager, Community Services
Laura Rocha, Deputy City Manager, Administrative Services
Gina Herrera, Assistant City Attorney
Tom Frank, Transportation Director/City Engineer
Kyle Lancaster, Parks & Recreation Director
Kristina Ray, Community & Engagement Director
James Wood, Environmental Sustainability Director
Hossein Ajideh, Engineering Manager
Nikki Matosian, Community Relations Manager
Katie Hentrich, Senior Program Manager
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