SAN JOAQUIN COUNTY – The California Department of Transportation (Caltrans) will perform various lane and ramp closures on State Route 4/Crosstown Freeway (SR-4) for maintenance and construction operations.
Work will occur as follows;
- One-way traffic control on SR-4 at the Old River Bridge (just East of Discovery Bay) for construction beginning Wednesday, January 3, through Friday, January 5, 2024, from 7:00 a.m. until 4:30 p.m.
Notes:
- One-way traffic control is expected to continue Mondays through Fridays, from 7:00 a.m. until 4:30 p.m. through February 9, 2024.
- A 55-hour full highway closure is expected to occur beginning at 10:00 p.m. on Friday, February 9, through 5:00 a.m. on Monday, February 12, 2024, for final testing to ensure safe and proper opening and closing of the swing bridge.
To learn more about ongoing projects in CALTRANS District 10, visit: https://dot.ca.gov/caltrans-near-me/district-10
Old River Bridge
State Route 4 Old River Bridge Additional Maintenance
Project Description: The California Department of Transportation (Caltrans) proposes to preserve the Old River Bridge (Number 29-0045) on post mile 0.01 at the San Joaquin and Contra Costa County line on State Route 4. Preserving the bridge would include a polyester concrete overlay and painting the bridge. The old timber waling and the fenders on the north side of Pier 3 would be replaced, and the south side of Pier 2 would be supported with new high-density polyethylene walers mounted to the existing timber piles. An abandoned Caltrans-owned one-car garage on the southwest levee would be removed. The approach rail on both sides of the bridge would be replaced with the current standard Midwest Guardrail System. — more info
State Route 4 Old River Bridge Maintenance
Project Description: This project proposes to perform mechanical and electrical repairs on the Old River Bridge #29-0045 over Old River east of Discovery Bay at the San Joaquin and Contra Costa County Line. — more info
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