Construction from 10:00 PM to 5:00 AM beginning April 7 through April 9 on westbound SR4 on-ramp from Sand Creek Road. Plan alt. routes. 
The Contra Costa Transportation Authority (CCTA) is constructing the State Route 4 (SR4) Sand Creek Road Interchange and 4-Lane Widening through Antioch and Brentwood. As part of the SR4 Widening, the contractor will be performing work on the westbound SR4 on-ramp from Sand Creek Road. The work will consist of demolition of the existing barrier and overhang on the bridge over Sand Creek for widening. In order to ensure crew and public safety during this work, the contractor will be closing the westbound SR4 on-ramp from Sand Creek Road from 10:00 PM to 5:00 AM starting Monday April 7th and ending on Wednesday April 9th.
Motorists are advised to use the provided detour or alternate routes and should allow extra time for their commute.
This work is weather dependent. If it is delayed due to weather conditions, it will be rescheduled for a later time.
Please drive with caution through the work area and leave a safe traveling distance between your vehicle and the vehicle ahead of you. For the most current information please contact the project hotline number at (925)206-3002 or go to www.4eastcounty.org
Address/Location
Brentwood Police Department
9100 Brentwood Boulevard
Brentwood, CA 94513
Contact
Emergency: 9-1-1
Lieutenant Benjamin Tolero
Patrol
[email protected]
925-809-7713