Diablo Road in Danville to See Traffic Disruptions for Tree Removal and Signal Upgrades

One-way traffic control and closures expected along portions of the road over the next few months.

Published on Mar. 9, 2026

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The town of Danville has announced that tree removal work and traffic signal upgrades will cause intermittent one-way traffic control and closures along Diablo Road between Clydesdale Drive and Avenida Nueva over the next several weeks. The work is expected to last through late March for the tree removal and approximately 12 weeks until early June for the traffic signal upgrades.

Why it matters

Diablo Road is a major thoroughfare in Danville, so the upcoming work and resulting traffic disruptions will impact many local residents and commuters who rely on this route. The town is aiming to improve safety and efficiency along the corridor through the tree removal and signal upgrades, but the project will require drivers to plan for delays and seek alternate routes when possible.

The details

The tree removal work will take place Monday through Friday from 7 a.m. to 7:30 p.m., with one-way traffic control limited to 9 a.m. to 2:30 p.m. Some Saturday work from 7 a.m. to 7 p.m. may also occur. Additionally, on Saturday, March 14, there will be brief 20-minute road closures between Clydesdale Drive and Fairway Drive to remove overhanging trees. The Contra Costa County traffic signal upgrades as part of the countywide Smart Signals Project are expected to last approximately 12 weeks, with lane closures limited to 9 a.m. to 2:30 p.m. Monday through Friday.

  • The tree removal work will continue through March 27.
  • The traffic signal upgrades are anticipated to last for approximately 12 weeks until the first week of June.
  • On Saturday, March 14, there will be brief 20-minute road closures between Clydesdale Drive and Fairway Drive.

The players

Town of Danville

The local government entity responsible for managing infrastructure and public works projects in Danville, California.

Contra Costa County

The county government overseeing the traffic signal upgrade project as part of the countywide Smart Signals Project.

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What’s next

Drivers should plan for delays and use alternate routes when possible during the upcoming tree removal and traffic signal upgrade work along Diablo Road.

The takeaway

The upcoming disruptions along Diablo Road highlight the need for ongoing infrastructure maintenance and improvements in growing suburban communities like Danville. While the work may cause temporary inconveniences for local residents and commuters, the long-term benefits of enhanced safety and efficiency along this major thoroughfare will benefit the entire community.