Brentwood: Balfour Road Closures Set for Feb 6-9


The Contra Costa County Transportation Authority announced that road work will begin on Balfour Road Tuesday night and continue through Saturday morning which will result in shutting down the roadway in the City of Brentwood.

Beginning Tuesday night, February 6, crews will work on the electrical systems on Balfour Road and will place girders, which are precast concrete support beams, over Balfour Road.

Nightly closures on Balfour Road, between SR4 and Cortona Way / Eagle Rock Road will take place Tuesday, February 6 through Friday, February 9, 2018. Closures will be in place between 10:00 p.m. and 5:00 a.m., Tuesday through Thursday nights, and between 11:00 p.m. and 6:00 a.m. on Friday night into Saturday morning. One lane of traffic in each direction will be open at all times. One lane of traffic in each direction will be open at all times.

Tuesday and Wednesday – Westbound Balfour Road will be closed.

  • Westbound Balfour Road between Summerset Drive and Eagle Rock / Cortona Way will be closed
  • One lane in each direction will be open on Eastbound Balfour Road for motorists

Thursday and Friday – Eastbound Balfour Road will be closed

  • Eastbound Balfour Road between Eagle Rock / Cortona Way and Summerset Drive will be closed
  • One lane in each direction will be open on Westbound Balfour Road for motorists

The Contra Costa Transportation Authority (CCTA) recently began construction of the new Balfour Road Interchange at Highway 4. The Balfour Road and Highway 4 intersection is currently signalized, resulting in traffic backups during peak commute times. This project will replace the at-grade intersection with a new interchange to reduce traffic congestion and enhance safety for motorists, cyclists and pedestrians. Check out the video below video below to see how the new interchange will look and function.

This is the final phase of traffic flow improvements on Highway 4. The series of improvement projects on Highway 4 were developed cooperatively among the Contra Costa Transportation Authority, and the cities of Brentwood, Antioch, and Oakley.



  1. What is happening at Balfour and Byron Hwy? The new road construction seems all screwed up. The bike lane narrows to the dirt while the other side is two car widths. The stop sign is set with sand bags and everyone has left.

    • Relax American, relax, they’re building that race track from Brentwood to discovery bay. Later better than sooner. Just wait and see.

  2. Ok , I’m relaxed. Nope, what about the stop light at Byron Highway at Camino Diablo ? It never got turned on and the project appears abandoned. Bummer for Byron.

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