Contra Costa Air Quality

On May 4, a closure and detour will go into effect for the southbound I-680 Marina Vista/Waterfront Rd off-ramp in Martinez. The closure will remain in effect until October 2015. Between April and October, a seismic retrofit will be performed on the Mococo Overhead Bridge and the I-680 off-ramp will be replaced. During the closure, southbound I-680 traffic will detour to the Arthur Road interchange, exit and cross under the freeway, return to northbound I-680, and exit at Marina Vista/Waterfront Road.... Read the rest
Caltrans District 4 has scheduled the following lane and ramp closures for the Interstate 680 Mococo Overhead Bridge Rehabilitation Project: On-Ramp Closures The Marina Vista on-ramp to southbound I-680 will be closed: Thursday night, March 26, from 6pm-6am 6pm Friday night, March 27 until 12pm Saturday, March 28 Lane/Shoulder Closures at the Marina Vista/Waterfront Road Interchange: One northbound lane will be closed from 8pm Friday, March 27 to 5am Monday, March 30 The left shoulder of southbound I-680 will be closed from 8pm Friday, March 27 through 5am Monday, March 30 Upcoming Closure of Southbound I-680 Off-Ramp to Marina Vista/Waterfront Road In late April 2015 Caltrans will close the southbound off-ramp from I-680 to Marina Vista/Waterfront Road.... Read the rest