About The Project

Project Benefits

Calistoga Road is a key corridor for residents, businesses, students and commuters. Over time, the roadway and underlying infrastructure have deteriorated and now require significant rehabilitation. This project is designed to:

Improve roadway durability and ride quality

Enhance safety for drivers, cyclists, and pedestrians

Upgrade aging water and sewer infrastructure

Improve accessibility to meet current ADA standards

Support long-term mobility and connectivity in the area

During Construction

What to Expect

The Calistoga Road Pavement Rehabilitation & Utility Improvement Project will include complete roadway rehabilitation from Montecito Avenue to Highway 12. You can expect the following to occur over the course of construction;

Roadway Rehabilitation

  • Full Depth Reclamation (FDR) of travel lanes and center turn lane
  • Mill and overlay for parking and bike lanes
  • Improvements to address pavement deterioration

Bicycle Improvements

  • Buffered bike lanes (Marit Drive to San Luis Avenue)
  • Protected bike lanes with delineators (San Luis Avenue to Montecito Blvd)
  • Maintenance of existing Class II bike lanes in other segments

Pedestrian Improvements

  • Upgrades to curb ramps to meet ADA standards
  • Improved accessibility along the corridor

Utility Upgrades

  • Replacement and upsizing of approximately 7,629 linear feet of water mains
  • Replacement of approximately 1,825 linear feet of sewer lines
  • Installation of new hydrants, valve boxes, and manhole improvements

Construction activities will generate noise, dust, and the presence of heavy equipment within the work zone. The City appreciates the community’s patience as these improvements are completed.

When traveling through the construction area, please watch for workers and equipment, follow posted signage, and obey directions from flaggers. Using alternate routes when possible can help reduce travel delays and improve safety for both workers and motorists.

Thank you for your cooperation and patience as we rehabilitate our roads. For more information please visit the City of Santa Rosa’s Calistoga Road Pavement Rehabilitation & Utility Improvement Project webpage.

Project Schedule

Timeline & Hours

Construction is expected to begin in June 2026 following the contractor’s Notice to Proceed. The project is anticipated to take approximately 320 working days to complete, though the
schedule may be adjusted due to weather conditions or other unforeseen conditions.

Design & Bid

Project design finalized. Contractor selected and awarded March 2026

Notice to Proceed

Official go-ahead issued. Mobilization begins June 2026.

Utility Work

Underground water and sewer replacements completed first.

Roadway Rehab

Full Depth Reclamation, paving, and bike/ped improvements.

Project Complete

All improvements finished. Road reopened.

Work will typically take place from 7:00 a.m. to 7:00 p.m. Monday through Friday. On occasion, if deemed necessary and as approved by the City, periodic night work would take
place from 8:00 PM p.m. to 5:00 a.m. Prior notice will be given for night work, and if periodic weekend work is needed.