CALIFORNIA STATE EDITION
A Supplement to:
April 20 2025 Vol. VI • No. 8
“The Nation’s Best Read Construction Newspaper… Founded in 1957.” Your California Connection – Sharon Swanson – 1-760-518-4336 – sswanson@cegltd.com
Contractors Progress On SR 52 Pavement Project
A conveyor transfers roadway materials to a roadbed.
By Irwin Rapoport CEG CORRESPONDENT
Compaction shafts are drilled every few feet.
The California Department of Transportation’s (Caltrans) $54 million State Route 52 Pavement Improvement and Auxiliary Lane Project is bringing numerous improvements to a 3.9-mi. stretch of the highway near Convoy Street in San Diego. Work by the joint venture of Coffman Specialties Inc. and Condon-Johnson & Associates began in March 2024. Project completion is anticipated by spring 2027. The project is financed through the Federal Highway Trust Fund and the State Highway Fund. The project is designed to resolve pavement issues near Convoy Street between Interstate 805 and State Route 163 and is adding an eastbound auxiliary lane from Interstate 15 to Santo Road. In addition, eight maintenance vehicle pull-
outs (MVP) will be installed to reduce highway work exposure during landscaping activities, and 13 existing metal beam guardrails will be upgraded to Midwest Guardrail Systems with steel posts. “The settlement over the Old Miramar Landfill is causing uneven pavement conditions,” said Steve Welborn, Caltrans public affairs manager. “Construction crews have performed compaction grouting as ground improvement mitigation and will place an asphalt overlay, and that will level the uneven pavement and improve ride quality. “This will provide comfort and safety for drivers and improve the structural performance of the pavement. Additionally, by implementing the subsurface ground improvement, projects will not be needed to correct the uneven pavement using frequent emergency overlay projects in the near future.” see SR52 page 6