Print This Page

Lone Tree Way / A Street

LoneTreeWay_FormworkThe Lone Tree Way/A Street segment is the fourth segment along the corridor, between Contra Loma Boulevard/L Street and Hillcrest Avenue. The project will expand the highway from four to eight lanes, including three mixed flow lanes and one High Occupancy Vehicle (HOV) lane, from just west of Lone Tree Way/A Street to just west of Hillcrest Avenue. The project includes reconstruction of the Lone Tree Way/A Street Interchange and widening the highway median to accommodate mass transit (eBART).

Lone Tree Way / A Street Map

CONTRACTOR

Bay Cities/Myers, Joint Venture

CONSTRUCTION ALLOCATED BUDGET

$59.8 million

SCHEDULE

Construction began in August 2012 and the segment is expected to be open to traffic in late 2015.

PROJECT UPDATE – JULY 2014

Milestone Activities:

  • Switch westbound Highway 4 traffic onto eastbound roadway to accommodate westbound roadway widening – Summer 2014

Recently Completed Work:

    • Completed first phase of the widening of Lone Tree Way/A Street.
    • Continued construction of retaining walls and sound walls at various locations on the project.
    • Poured jointed plane concrete pavement for eastbound and westbound widening of Highway 4.
    • Placed masonry block for sound wall construction at various locations on the project.
    • Began work on eBART median barrier

Upcoming Work:

Removal of Retaining Wall Forms - Photo courtesy of Caltrans
    • Continue pouring jointed plane concrete pavement for eastbound and westbound widening of Highway 4.
    • Continue placing masonry block for sound wall construction at various locations on the project.
    • Continue work on eBART median barrier
    • Prepare for the upcoming milestone traffic switch