I-680 Controller Cabinet Upgrades and Loop Detector Replacements Project (EA 04-0V290)

The California Department of Transportation Caltrans proposes upgrading controller cabinets and replacing inductive loop detectors at various location on Interstate I- 680 in Contra Costa County from about 0.67 mile north of the Oak Park Boulevard overcrossing at post mile PM R17.55 to about 0.11 mile south of the southbound SB off-ramp to Contra Costa Boulevard at PM 20.00. Construction will involve slot cutting the pavement to access and replace the inductive loop detectors. Upgrades of the co...