Caltrans is scheduled to install the Mokelumne Trail Bicycle and Pedestrian Overcrossing span over State Route 4 (“SR4”) in Brentwood beginning Friday, March 24 through Wednesday, March 29, 2023.
The Mokelumne Trail in the overcrossing project area is part of the larger Mokelumne Coast to Crest Trail that will, when completed, connect six counties across California from the East Bay to the Sierra Nevada Mountains.
Visit here for more information on the project.
Weather permitting, Caltrans will be closing the highway one-direction at a time between Sand Creek Road and Lone Tree Way as described below:
- March 24th: Eastbound SR4 closure from midnight Friday until 6:00 a.m. Saturday.
- March 25th: No closure on Saturday night.
- March 26th: Westbound SR4 closure on Sunday from 1:00 a.m. to 7:00 a.m.
- March 26th: Westbound SR4 closure on Sunday from 11:00 p.m. until 4:00 a.m. Monday.
- March 27th: Eastbound SR4 closure on Monday from 11:00 p.m. until 4:00 a.m. Tuesday.
- March 28th: Eastbound or westbound SR4 closure on Tuesday from 11:00 p.m. until 4:00 a.m. Wednesday, if needed to complete any remaining work.
Detour Route:
- Westbound traffic will exit Sand Creek Road and proceed eastbound on Sand Creek Road to Shady Willow Lane, proceed northbound on Shady Willow Lane to Lone Tree Way, and proceed westbound on Lone Tree Way to the westbound SR4 on-ramp.
- Eastbound traffic will exit Lone Tree Way, proceed eastbound on Lone Tree Way to Shady Willow Lane, proceed southbound on Shady Willow Lane to Sand Creek Road, and proceed westbound on Sand Creek Road to the eastbound SR4 on-ramp.
About the Project
Overview
The Mokelumne Trail Bicycle and Pedestrian Overcrossing project will construct a bridge spanning Highway 4 in Brentwood, closing a gap in the trail that was created by the highway’s expansion. In connecting two sides of the Mokelumne Trail, the bridge will provide safe access to cyclists and pedestrians for commuting and recreational travel.
Design Highlights
- Multi-span bridge with a column in the Highway 4 median
- Bridge approaches will be constructed on earthen embankments
- Path will range from 12 to 16 feet in width
- Width will accommodate the potential for future autonomous shuttle travel
Schedule
ANTICIPATED COMPLETION: Early 2023
Costs & Funding
The cost to design and build the bridge is approximately $13 million, with funding provided through Measure J taxpayer dollars, the State Route 4 Bypass Authority, and bridge toll funds.
