Flood Adaptation Strategy for State Route 4 Through the San Joaquin Delta River

San Joaquin Council of Governments

Buyer is seeking consultants to develop a Flood Adaptation Strategy for State Route 4 through the San Joaquin Delta River. The strategy will assess flood impact, including evacuation routing, and generate priority flood-resilient capital improvement projects. The project is identified as a Priority Adaptation Strategy in the 2022 Regional Resiliency Implementation Plan. Buyer anticipates the work will be completed within 12 months of notice to proceed.

• 6/19/2025 - Release Date
• 7/8/2025 - Deadline for Questions
• 7/29/2025 - Proposal Due Date
• 8/14/2025 - Evaluation Review Complete
• 8/28/2025 - SJCOG Board Approval

• Assess SR-4 sensitivity and adaptive capacity to flooding
• Develop high-level flood mitigation strategies and project alternatives
• Conduct cost-benefit analysis of adaptation strategies
• Create evacuation routing analysis during flood events
• Conduct literature review of existing flood studies and initiatives
• Facilitate three community engagement events with stakeholders
• Design hosted two-way communication portal for public input
• Develop implementation strategies for critical transportation infrastructure
• Prepare high-quality visual renderings and graphic content
• Identify funding opportunities for recommended adaptation strategies