When is the submission deadline?

Submissions are due October 27, 2026. Questions must be submitted by September 4, 2026.

What is the budget for this RFP?

Settle estimates the budget at $500,000 – $700,000. The issuer has not published an official figure.

It was issued by California Department of Transportation. The work is located in California, United States.

Salton Sea West Flood Resilience Study (Due October 27, 2026)

Overview

Architecture, Engineering & Urban Planning

California, United States; California, United StatesPosted: August 20, 2026Deadline: October 27, 2026

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SUMMARY

The California Department of Transportation (Caltrans) is seeking a consultant to conduct a flood resilience study for roadway segments along the west side of the Salton Sea in Imperial and Riverside Counties.

KEY REQUIREMENTS

Must have at least three years of substantive experience performing hydrograph analysis utilizing HEC-HMS
Must have at least three years of substantive experience performing SRH2D floodplain modeling
Must have experience conducting public and targeted stakeholder engagement activities inclusive of Native American tribal communities within the last ten years
Must have experience applying FEMA and FHWA flood risk analysis and hydraulic modeling guidance on at least one project
Must have experience analyzing how hydraulic processes and hazards may be altered and intensified by climate stressors on at least one project
Must have experience in transportation planning and related issues including safe and accessible bicycle and pedestrian facility planning on at least one project
Must have experience analyzing the impacts and efficacy of nature-based adaptation and armoring methods on at least one project
Must have an accounting system capable of accumulating and segregating reasonable, allocable, and allowable costs
Must be able to provide an original proposal and one PDF copy on a thumb drive

BUDGET

Estimate

$500,000 – $700,000

CONTRACT DURATION

26 months

TIMELINE

Optional Pre-Proposal Conference: August 31st, 2026

Written Question Submittal: September 4th, 2026

Final Date for Proposal Submission: October 27th, 2026

Oral Presentation: Week of November 16th, 2026

Posting of Notice of Intent to Award: Week of December 7th, 2026

Proposed Agreement Award Date: Week of December 14th, 2026

QUESTION DEADLINE

September 4, 2026

CONTACTS

Primary procurement contact — name, title, email, and phone

Additional decision-makers and their departments

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Issuing Agency

California Department of Transportation

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DESCRIPTION

The California Department of Transportation (Caltrans) is soliciting proposals for the Salton Sea West Flood Resilience Study. The study area covers routes 78 and 86 in Imperial County and extends 10 miles into Riverside County, focusing on addressing recurring washouts and flooding events that impact transportation infrastructure, tribal lands, and disadvantaged communities. The selected consultant will perform hydrological and hydraulic modeling, climate resilience analysis, and stakeholder engagement, including tribal outreach. The contract term is estimated to be from January 26, 2027, to April 3, 2029.

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Frequently asked questions

When is the submission deadline?: Submissions are due October 27, 2026. Questions must be submitted by September 4, 2026.
What is the budget for this RFP?: Settle estimates the budget at $500,000 – $700,000. The issuer has not published an official figure.
Who issued this RFP?: It was issued by California Department of Transportation. The work is located in California, United States.

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