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Regional Transportation Infrastructure Sea Level Rise Assessment and Adaptation GuidanceP R E S E N T E D B Y S A R A H P I E R C EShoreline Preservation Working Group

D E C E M B E R 5 , 2 0 1 9

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Overview

Project Team, Goals, and Key Definitions

Vulnerability Assessment

Best Practices

Adaptation Pathways

Conclusions and Next Steps

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Stakeholder Comments and Working Group Recommendation

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Project Team, Goals, and Key Definitions01

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Project Team

SANDAG (Sarah Pierce, Katie Hentrich)Dudek (Zoë Carlson, Sarah Richmond, Kaitlin Carney)Moffatt & Nichol (Chris Webb, Conor Ofsthun)Caltrans Shoreline Preservation Working Group Local jurisdictions and agencies

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Project Goals

Assess vulnerabilities and risk to regional facilities (e.g. highways, bikeways, trails, light and heavy rail)Document sea-level rise (SLR) best practices/lessons learnedAdaptation “toolkit” – local and regional measures to mitigate sea-

level rise impacts (policies, projects, and funding sources)

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Regional Transportation Infrastructure

Any transportation asset that crosses jurisdictional boundaries including highways, bikeways, and trails (ATPs), light and heavy rail.

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Vulnerability Assessment02

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Vulnerability Assessment02

Local SLR Planning

CoSMoS

VAST

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Vulnerability Assessment02

CoSMoS

VAST

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Vulnerability Assessment02

Local SLR Planning

CoSMoS

VAST

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Vulnerability Assessment02

Local SLR Planning

CoSMoS

VAST

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Vulnerability Assessment02

Local SLR Planning

CoSMoS

VAST

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Vulnerability Assessment02

Local SLR Planning

CoSMoS

VAST

Most effective comparing within a specific category VAST indicators not appropriate across asset

categories Stakeholder feedback important to gauge value VAST is transparent and user friendly Uniquely suited for transportation

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Adaption Planning Best Practices03

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Adaptation Planning Best Practices03

Interviews

Best Practices

Nine interviews Best practices

identified in two or more interviews

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Adaptation Planning Best Practices03

Interviews

Best Practices

Collaborate Conduct outreach Conduct vulnerability and risk assessments Develop adaptation polices Pursue multi-jurisdictional planning efforts

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Adaptation Pathways04

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Adaptation Pathways04

Policies

Projects

Funding

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Adaptation Pathways04

Policies

Projects

Funding

Potential Sea-Level Rise Adaptation Strategies

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Adaptation Pathways04

Policies

Projects

Funding

Lagoon and Harbor Sediment Sources

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Adaptation Pathways04

Policies

Projects

Funding

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Conclusions and Next Steps05

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Conclusions and Next Steps05

Local Jurisdictions

SANDAG

Regional Planning

Pursue funding for feasibility study for RBSP III Consider update to the SPS to account for SLR Consider adding biological monitoring to RSMP Discuss sand retention pilot with SPWG and

jurisdictions Implement improvements to I-5 and the LOSSAN

corridor

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Comments and Recommendation06

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Shoreline erosion and cliff retreat

Include additional facilities in VA and/or VAST (i.e. Harbor Drive; Jimmy Durante Blvd.)

Sediment sources discussion and analysis

Comments and Feedback06

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Timeline and Next Steps06

December 2019 SPWG Meeting

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The Shoreline Preservation Working Group is asked to recommend that the Regional Planning Committee recommend acceptance of the Regional Transportation Infrastructure Sea-Level Rise Assessment and Adaptation Guidance by the SANDAG Board of Directors.

Recommendation06