Construction Update - July 2, 2026

• Water Main Installation to Begin Monday
• Project Overview
• Construction Notes

Water Main Installation to Begin Monday

[new!] With sewer pipeline work scheduled to be largely completed this week, next on the schedule is installation of 2,600 feet of 16” water main pipeline. This is expected to begin on Monday July 6, as crews start work on Calistoga Road near Monte Verde Drive, and work their way south to Marit Drive. The 16” pipeline open-trench installation is anticipated to continue through approximately July 14.

Traffic control measures will be in place during this work, including lane shifts - motorists should expect traffic delays. Please follow all posted construction signage and directions from flaggers on-site. Use extra caution when driving in the vicinity of construction, and watch for trucks, equipment, and work crews.

Note that the flashing red light at the Calistoga Road/Dupont Drive intersection will remain in that mode, since the water pipeline work will soon be approaching that location. REMINDER: when approaching a flashing red signal, treat it as a four-way stop. Come to a complete stop, yield to vehicles and pedestrians already in the intersection, and proceed when it is safe to do so.

Once the water main work reaches Dupont Drive, traffic from Dupont to Calistoga will be detoured onto Grove Avenue, then Marit Drive and back onto Calistoga. Motorists using the detour are reminded to observe posted speed limits while traveling through the surrounding residential streets.

Thank you for your continued patience as we work to improve this corridor - we apologize for disruptions and traffic delays this project may be causing.

Schedules are subject to change due to weather and other unforeseen circumstances

Installation of sewer lateral to serve Fire Station 6

Excavator with compaction wheel to compact base rock over pipeline

Project Overview

The Calistoga Road Pavement Rehabilitation & Utility Improvement project will repair and restore approximately 1.1 miles of Calistoga Road using Full Depth Reclamation and mill and fill paving techniques to address worn and deteriorating road conditions.

Improvements will also include adding buffered and protected bike lanes in select locations while maintaining existing bike lanes elsewhere, improvements to bus stop infrastructure, and pedestrian curb ramps upgraded to current ADA standards.

In addition to roadway improvements, the project includes  water and sewer system upgrades, including approximately 7,629 linear feet of water pipe replacement and 1,825 linear feet of sewer pipe replacement.

Construction Notes

As with all large construction projects, there will be unavoidable disruptions to nearby neighbors and to motorists traveling in the area – we apologize in advance for noise, dust, lane closures, traffic delays, and any other impacts or inconveniences. When driving, cycling, or walking in the area, always be aware of construction crews and equipment, flaggers, special signage, slower traffic, and changing roadway conditions. Use an alternate route if possible, and allow for additional time to get to and from your destination.

Typical working hours are 7:00 a.m to 5:30 p.m. During those hours traffic control measures and lane closures may be in effect.

Night work (8:00 p.m. to 5:00 a.m.) and weekend work may occur with advance notice.

 Please share this information with your neighbors.

If you have questions or concerns about this project, send an email to [email protected] or call the project information line at (707) 387-4031.

Thank you for your patience and cooperation!