RFP 2025-06 Preparation of Project Approval and Environmental Documentation (PA&ED), as well as Plans, Specifications, and Estimate (PS&E) for the Solano Rail Hub Project Pedestrian Crossing and Station Area Improvements Project

The STA intends to retain a qualified and committed professional engineering firm/team to provide services required for the preparation and completion of the PA&ED and PS&E phases of the Solano Rail Hub Project Pedestrian Crossing and Station Area Improvements. The selected consultant will work closely with STA, the cities of Suisun City and Fairfield, and County of Solano. Additionally, coordination will be required with other agencies, including CCJPA and Amtrak, to align efforts on a separate, but related ADA Station Upgrades Project at the Solano Rail Hub. As this work will involve crossing Union Pacific Railroad (UPRR) right of way (R/W), approvals from this entity will be required as well.

Release Date: Friday, June 13, 2025

Pre-Proposal Meeting via Zoom: Tuesday, July 1, 2025 at 11:00 a.m.

[RSVP to Cecilia at cdeleon@sta.ca.gov by Friday, June 27, 2025]

Deadline to Submit Questions about RFP: Monday, July 7, 2025

Proposals Due: Friday, August 1, 2025 no later than 4:00PM PST

Staff Contact:

Jasper Alve, Project Manager

jalve@sta.ca.gov

(707) 399-3204

The RFP and related materials are provided below:

The Solano Transportation Authority (STA), in partnership with the Napa Valley Transportation Authority (NVTA) are seeking a Traffic Modeling Consultant to update the base year of the Solano Napa Activity Based Model (SNABM) from 2015 to 2025. This effort will factor in new traffic counts essential to validate the new base year. Additional components of the scope of work will include evaluating the model’s Traffic Analysis Zones (TAZs) and potentially redistributing the boundaries to reflect traffic conditions at the local level, along with corroborating consistency with MTC’s Regional Model and the upcoming Plan Bay Area 2060 update.

Release Date: June 20, 2025

Deadline to Submit Questions about RFP: July 7, 2025

Proposals Due: July 28, 2025, at 4:00PM

Staff Contact:

Robert Guerrero

Deputy Executive Director/Director of Planning

rguerrero@sta.ca.gov

(707) 399-3211

OR

Dulce Jimenez

Assistant Planner

djimenez@sta.ca.gov

(707) 399-3214

The RFP and related materials are provided below: