California Department of Transportation

The State Route 4 (SR-4) Crosstown Freeway project will extend the Crosstown Freeway west from Fresno Avenue to Navy Drive. The extension will be carried on twin viaduct (bridge) structures that will cross over Fresno Avenue creating a grade separation that will no longer allow highway traffic to enter the Boggs Tract neighborhood at Fresno Avenue. Navy Drive will be converted to a four-lane facility with a partial interchange.

The project is programmed and funded through a combination of the Proposition 1B Trade Corridor Improvement Fund (TCIF) and Measure K (San Joaquin County's one-half cent sales tax). Total project cost is $140 million:
TCIF: $70 million
Measure K: $70 million

The construction project is planned to be completed in three stages to minimize impacts and maintain traffic movement for local and regional travelers. The project will:
Construct SR-4 viaduct (bridge) extension from Fresno Avenue to BNSF Railway
Construct SR-4 viaduct (bridge) over BNSF Railway. Construct fill, road and basins at ramp terminal
Construct Navy Drive widening
Remove Fresno Avenue ramps and finish grading
Construct Tillie Lewis Drive pavement, install signal at Charter Way

Construction is slated for completion in fall 2017.

Construction will generally take place Monday through Friday from 7:00 a.m. to 5:00 p.m. The contractor may also work at night on occasion.

All access to businesses and residences will remain open during construction. Local property owners and the traveling public may experience lane closures, traffic delays or in some cases detours for necessary construction improvements. You may also experience typical construction related noise during scheduled working hours. Traffic detour information will be made available prior to closures to ensure the traveling and impacted public are aware and can adjust their travel plans accordingly. A construction liaison will work closely with property owners throughout the project to inform them of upcoming activities and address any concerns.

Caltrans District 10 Public Information Office,
P.O. Box 2048, Stockton, CA 95201
(209) 948-7977
Fax: (209) 948-3895

SJCOG and Caltrans understand the impacts this project may cause so we thank you for your patience and appreciate your support during this important infrastructure improvement project for our region.