State Route 4 Operational Improvements (I-680 to Bailey Road) The State Route 4 (SR4) Freeway Performance Initiative (FPI)/Corridor Study Management Plan (CSMP) and the SR4 Integrated Corridor Analysis (ICA) identifi ed several elements to improve operations on SR4. The SR4 Operation Improvements Project includes a continuation of a High Occupancy Vehicle (HOV) lane on eastbound…
State Route 242 / Clayton Road Ramps State Route 242 (SR242) is a 3.4-mile long connector freeway that links I-680 to State Route 4. In addition, the SR242 corridor serves commercial, light industrial and residential land uses in the City of Concord. The interchanges at Clayton Road and Concord Avenue are considered the primary access…
Serving communities in central and southern Contra Costa County, Interstate 680 (I-680) is a backbone corridor for the Bay Area. It extends south to Silicon Valley and north to Fairfield, while providing access to scenic recreational areas, popular retail hubs, and thriving business centers. I-680 is critical to the region’s prosperity as it provides for the movement of goods and services throughout the Bay Area and beyond. Thousands of homes and businesses rely heavily on this corridor for day-to-day travel.
English
Arabic
Bulgarian
Chinese (Simplified)
Croatian
Czech
Dutch
Filipino
French
German
Greek
Hebrew
Hindi
Hungarian
Indonesian
Irish
Italian
Japanese
Korean
Persian
Polish
Portuguese
Romanian
Russian
Spanish
Swedish
Thai
Turkish
Vietnamese