road closure | 511 Contra Costa

Overnight I-80 Closure June 18, 2016: San Pablo Ave to San Pablo Dam Rd

Overnight on Saturday, June 18, I-80 will be closed in both directions in the Richmond/San Pablo area for construction on the San Pablo Dam Road Interchange. The closure will be between San Pablo Ave and San Pablo Dam Rd and be in effect from 11pm Saturday, June 18 to 7am Sunday, June 19. Temporary detours will be in effect.
For more details on the closure, please visit the San Pablo Dam Road Interchange information page.

Overnight Highway 4 Closure (Antioch): February 25-27, 2015

The California Department of Transportation and the Contra Costa Transportation Authority are constructing two new connector ramps, one connecting westbound State Route 4 (SR-4) to northbound SR-160, and one connecting southbound State Route 160 (SR-160) to eastbound SR-4 in Contra Costa County.
Part of this construction work entails adjustment of temporary bridge supports that span over SR-4. In order to ensure crew and public safety during this work, the contractor will close all lanes of SR-4 in the eastbound and westbound directions between the SR-4/SR-160 connector ramp and Laurel Road.
These closures are scheduled to take place on the evenings of February 25, 26, and 27th from 11:59pm to 5:00 am.
The detour for this work will be as follows:

  • Eastbound motorist will be directed off the highway at the SR-160 off-ramp and redirected to return to eastbound SR-4 via the Laurel Road on-ramp.
  • Westbound motorist will be directed off the highway at Laurel Road on-ramp and redirected to westbound SR-4 via the entrance of southbound SR-160.

Motorists are advised to expect delays and allow extra time for their commute. Please drive with caution through the detours and leave safe traveling distance between your vehicle and the vehicle ahead of you.

Buskirk Ave To Be Partially Closed Monday Sep 23-Friday Sep 27, 2013

Buskirk Avenue will be partially closed and flagged to one-way traffic typically from 7:30 A.M. to 4:00 P.M. from Monday, September 23 to Friday, September 27, 2013. Some work may occur outside these listed times depending on weather, field conditions and work conflicts. Motorists should expect delays during these construction periods. Please use alternate routes or allow for extra travel time.
The City’s contractors, Ghilotti Brothers and Saint Francis Electric, will be installing underground joint trenching across Buskirk Avenue near the Marshalls store from Monday, September 23 to September 27, 2013. This is the final joint trench conduit work required by AT&T and Comcast to complete their installation of underground wiring as part of the conversion of overhead wiring to underground (cutover) through this project area. After all the cutovers are performed, joint utility poles (poles shared by PG&E, AT&T and Comcast) will be removed along Buskirk Avenue and Hookston Road.

Several Caldecott Closures Tuesday Night July 13th

According to, the far right lane (#4) of westbound Route 24, before to the Caldecott Tunnel will be closed Tuesday night, July 13. The closure at 7:30 PM, with full closure in place by 8:30 PM. The closure will be until 4:00 AM.
Also, the Fish Ranch Road off-ramp and on-ramp will be closed from 9:00 PM – 5:00 AM.
That same night, Tunnel Bore #3 will be closed from 10:00 PM – 4:00 AM.

On-Off Ramps and Third Bore Night Closures

July 6-8 the far right lane (#4) of westbound Route 24 will be closed. Work crews will begin the closure at 7:30 PM and full closure will take place at 8:30 PM. The closure will take place until 4:00 AM.
During those nights, the Wilder off-ramp will be closed from 9:30 PM until 5:00 AM. The Wilder on-ramp will be closed from 11:30 PM until 5:00 AM. July 6-8 the Fish Ranch Road off-ramp will be closed from 9:00 PM. Until 5:00 AM.
According to, Caltrans crews will be installing electrical conduit as part of the Fourth Bore Project.

Lane Closure Information for Bay Bridge Eyebar Repair Project


Photo courtesy of Caltrans.
Were you stuck on the bay bridge traffic this week… yet again?
If you were commuting at night, gridlock was most likely due to the lane closures that began on Friday, December 11. (However–come to think of it–we’re not convinced it wasn’t also Lady Gaga and the 49ers).
Why the bottleneck? Labor Day weekend, workers discovered and repaired a crack in an eyebar on the bridge. In late October, the section underwent additional work. Last weekend, workers began a repair project on the eyebar that is expected to last three weeks. Until the completion of the project, factor the nightly closure of three westbound lanes and one eastbound lane into your travel plans.
Detailed information on Bay Bridge lane closures:
Wednesday (12/16/09) afternoon:
Upper deck (westbound) far left lane will be closed from Noon to 3 PM
Thursday (12/17/09) afternoon:
Upper deck (westbound) far left lane will be closed from Noon to 3 PM
Lower deck (eastbound) far left lane will be closed from 7 AM – 2 PM
Upper Deck (Westbound)
Three left lanes will be closed Sunday through Thursday: 10 PM – 5 AM
Friday nights: 11 PM – 8 AM
Saturday nights: 11 PM – 9:30 AM
Lower Deck (Eastbound)
Far right lane will be closed Sunday through Thursday: 10 PM – 7:00 AM
Friday nights: 11 PM – 8:00 AM
Saturday nights: 11:30 PM – 9:30 AM
Additional information:
For daily updates on lane closures, visit the Bay Bridge Closures & Detours page.
Visit’s Bay Bridge information page for a map of alternate routes and transportation alternatives.
You lost me at ‘eyebar’. No worries–view detailed information and illustrations for the repair at:

Lane Closures in Lafayette

East Bay Municipal Utility District will be conducting pipeline work in the vicinity of Pleasant Hill Road near Acalanes High School. In order to conduct the work, single lane closures will be expected on southbound Pleasant Hill Rd from Springhill Rd to Acalanes Rd beginning June 15th, 2009.  Work hours are from 9:15 a.m. to 6:00 p.m.  M-F.  Occasional and intermittent lane closures can be expected in the northbound direction to allow for staging of equipment.  Delays are expected; use of alternate route is suggested.  It is hoped that the work can be completed during the summer months before the fall school term begins in August 2009.