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Santa Rosa Selects Substrate for $37.6M Highway 101 Bike/Pedestrian Crossing
The new overcrossing project aims to improve safety, reduce travel times, and encourage active transportation.
Published on Feb. 26, 2026
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The City of Santa Rosa has selected Substrate, a construction management firm, to oversee the $37.6 million Highway 101 Bicycle & Pedestrian Overcrossing project. The new crossing, spanning Edwards and Elliott Avenues, will provide a dedicated, high-comfort route for people walking, biking, and using mobility devices to access key destinations on both sides of the highway.
Why it matters
The overcrossing project is seen as a critical link in Santa Rosa's bicycle and pedestrian network, improving safety, reducing travel times, and encouraging active transportation to support the city's climate goals. The project will also strengthen east-west connectivity, especially for underserved communities who rely on non-vehicle travel.
The details
Ghilotti Construction Company was selected as the construction company for the project, which was awarded on February 10, 2026. Substrate is supported by a team of subconsultants including Hill International, AZAD Engineering PC, BSK Associates, OPAC, and Cinquini & Passarino.
- The City of Santa Rosa awarded the Construction and Construction Management on February 10, 2026.
- The Highway 101 overcrossing project has long been identified as a critical link in Santa Rosa's bicycle and pedestrian network.
The players
Substrate
A construction management firm selected as the prime consultant for the Highway 101 Bicycle & Pedestrian Overcrossing project.
Ghilotti Construction Company
The construction company selected for the $37.6 million project.
City of Santa Rosa
The local government agency that awarded the construction and construction management contracts for the Highway 101 Bicycle & Pedestrian Overcrossing project.
What they’re saying
“The new crossing, spanning Edwards and Elliott Avenues, will provide a dedicated, high‑comfort route for people walking, biking, using mobility devices, and accessing key destinations on both sides of Highway 101.”
— City transportation planners
What’s next
The project is expected to begin construction in the coming months, with an anticipated completion date in 2027.
The takeaway
This major infrastructure investment in Santa Rosa's active transportation network will improve safety, reduce travel times, and encourage more residents to choose walking, biking, and other sustainable modes of travel, supporting the city's climate and equity goals.
