California Department of Transportation
06/29/2026 | Press release | Distributed by Public on 06/29/2026 10:56
UPDATE: Overnight One Lane Closures at Appian Way Overcrossing Continues and Weekend Closure Delayed
UPDATE: Overnight One Lane Closures at Appian Way Overcrossing Continues and Weekend Closure Delayed
Published: Jun 29, 2026
Contra Costa County - Caltrans has revised its schedule for ongoing construction work at the Appian Way and Cummings Skyway overcrossings above Interstate 80 (I-80) in Contra Costa County. The updated schedule includes planned temporary lane and ramp closures during daytime, nighttime, and weekends.
Closure Schedule & Details
Appian Way Overcrossing Overnight One Lane Closed (Southbound):
- Dates: June 29 - July 3, 2026 & July 6 -July 10, 2026
- Time: 7:00 PM - 5:00 AM (nightly)
- Work: Asbestos removal
- Impact: One lane closed on southbound Appian Way overcrossing near I-80.
Appian Way Overcrossing Extended Weekend One Lane Closure (Southbound):
- Dates: Friday, July 10 - Monday July 13, 2026
- Time: 7:00 PM (Friday) - 7:00 AM (Monday)
- Work: Approach slab reconstruction
- Impact: Continuous one lane closed on southbound Appian Way overcrossing near I 80.
Additional Information
- No mainline lane closures on I-80 or Cummings Skyway Overcrossing closures are planned until after the July 4th holiday weekend
- All work is weather-dependent and subject to change
To view more D4 Projects, visit: Caltrans D4 Traffic Advisory Publications. To search for current District 4 lane closure information, please click here.
For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.
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California Department of Transportation published this content on June 29, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on June 29, 2026 at 16:56 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]