Roadway Impact &
Adaptation Study
A rigorous technical assessment of State Route 1 and supporting coastal transportation networks.
Client Profile: Mendocino Council of Governments
The Mendocino Council of Governments (MCOG) serves as the Regional Transportation Planning Agency (RTPA). This project is funded via the Sustainable Transportation Planning Grant Program. The study area covers 150 miles of coastline where State Route 1 serves as the primary north-south artery.
Scope of Technical Services (Tasks 1-6)
Task 1: Project Management & Coordination
The consultant will manage the project schedule, facilitate Technical Advisory Committee (TAC) meetings, and provide monthly progress reports. Strict adherence to the June 30, 2025 completion date is required.
Task 2: Literature Review & Data Compilation
Synthesis of Caltrans District 1 Climate Change Vulnerability Assessments, USGS CoSMoS SLR modeling, and local Coastal Program (LCP) updates. This includes identifying data gaps in current hazard mapping and groundwater rise projections.
Task 3: Stakeholder & Community Outreach
Development of an Engagement Plan focused on coastal residents and Tribal governments. Must include at least two public workshops and targeted outreach to disadvantaged communities (DACs) as per Caltrans requirements.
Task 4: Coastal Vulnerability & Risk Analysis
High-resolution mapping of SLR impacts using 1.0, 2.0, 3.0, and 6.6-foot scenarios. Analysis must account for permanent inundation, cliff retreat, and storm events impacting roadway structural integrity.
Task 5: Adaptation Strategies & Multi-Criteria Assessment (MCA)
Development of adaptation options including realignment, nature-based stabilization, and structural armoring. Each option will be ranked using an MCA framework considering environmental, economic, and equity factors.
Task 6: Final Study & Prioritized Action Plan
Comprehensive report delivery, conceptual design recommendations, and a formal presentation to the MCOG Board of Directors.
Technical Evaluation Criteria
Technical Glossary
MCOG / RTPA
Mendocino Council of Governments; Regional Transportation Planning Agency.
DBE Requirement
1.25% Disadvantaged Business Enterprise participation goal.
LAPM
Caltrans Local Assistance Procedures Manual; Chapter 5 compliance is mandatory.