1. Home
  2. Caltrans Near Me
  3. District 4
  4. What You Need to Know
  5. Full Closure of The Stenmark Drive On-Ramp to Westbound I-580, Located Near The Richmond–San Rafael Bridge, has Been Delayed by One Week

Full Closure of The Stenmark Drive On-Ramp to Westbound I-580, Located Near The Richmond–San Rafael Bridge, has Been Delayed by One Week

Published:

District 4 Caltrans Logo and Building California Logo

Beginning at 7 PM, Monday, June 8, 2026, through 5:30 AM Friday, July 10, 2026.

Contra Costa County — Caltrans District 4 construction has revised its scheduled for the full Closure of Stenmark Drive on-ramp to westbound I-580, due to coordination delays. For the protection of both construction workers and motoring public during the ongoing I-580 Richmond–San Rafael Bridge Open Road Tolling Project. Work will is no set to begin Monday, June 8, 2026, all vehicles must use the detour to WB I-580 via EB I-580 until July 10, 2026. This closure allows crews to safely prepare and modify the toll plaza area, which may require working near traffic lanes, moving heavy materials, or operating machinery. Please observe the reduced speed limit. A long term full closure of the Stenmark Drive on-ramp to WB I-580 will be implemented at a later date. Sign up for closure updates here: Richmond San Rafael Bridge Open Road Tolling Project. Or visit the Richmond San Rafael Bridge Website.

Trailer Restrictions Detour for Stenmark Drive on-ramp to Westbound I-580

  • Beginning at 7:00 PM, Monday, June 8th through 5:30 AM Friday, July 10th

Detour Information from Stenmark Drive to Westbound I-580:

  • Go east on Stenmark Drive
  • Take on-ramp to Eastbound I-580
  • Take off-ramp to Canal Boulevard
  • Go northbound on Canal Boulevard
  • Take Canal Boulevard on-ramp onto Westbound I-580

Detour map of the Stenmark Drive on-ramp to Westbound I-580 near the Richmond– San Rafael Bridge is scheduled for a complete closure. Detour Information from Stenmark Drive to Westbound I-580: • Go east on Stenmark Drive • Take on-ramp to Eastbound I-580 • Take off-ramp to Canal Boulevard • Go northbound on Canal Boulevard • Take Canal Boulevard on-ramp onto Westbound I-580.

Changeable Message Signs (CMS) will provide advance notice for motorists traveling in the area. Drivers may experience minor delays and are advised to plan ahead, prepare to merge and allow extra travel time. Be work zone alert, drive with caution through the work zone.

For 24/7 traffic updates, follow 511.org on X. For real-time traffic, visit Caltrans QuickMap at Quickmap.dot.ca.gov. To view more D4 Projects, visit: Caltrans D4 Traffic Advisory Publications.

To search for current District 4 lane closure information, please click here.

**All work is weather dependent and subject to change**