Contra Costa Air Quality

Click image to enlarge As part of the City’s Golf Club Road/Old Quarry Road Improvement Project, there will be road closures (near Diablo Valley College) between November 10 and November 19. Old Quarry Road Closure Old Quarry Road will be temporarily closed between Golf Club Road and Chilpancingo Parkway starting at 8 a.m. on November 10 (Friday) through 6 p.m. on November 12 (Sunday), and between 8 a.m. on November 17 (Friday) through 6 p.m.... Read the rest
BART will be closing the Pittsburg Park & Ride starting Monday, May 15 for construction of the Pittsburg BART station. Duration of the closure is unknown. During the closure, Tri Delta Transit buses will not stop at this location. Buses cannot stop on Bliss Avenue. For details including alternate bus stops near the Park & Ride, click here.... Read the rest
This weekend, Interstate 80 will be closed in both directions between San Pablo Ave and San Pablo Dam Rd for construction work. The closure will start 11pm Saturday, August 20th and end 7am Sunday, August 21st. Temporary detours will be in effect. For more information, visit: ccta.net/sanpablodamroad ... Read the rest
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 has scheduled lane closures along eastbound State Route 24, between Acalanes Road and Oak Hill Road, from Sunday April 19 at 9pm to Monday, April 20 at 8am. This work is in preparation for a slope stability project in that area. Motorists are advised to expect delays and allow extra time for their commute. Please drive with caution through the construction zone. For more information about the slope stability construction project, please visit the project webpage.... 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
The California Department of Transportation and the Contra Costa Transportation Authority are constructing two new connector ramps, one connecting westbound State Route 4 (SR-4) to northbound SR-160, and one connecting southbound State Route 160 (SR-160) to eastbound SR-4 in Contra Costa County. Part of this construction work entails adjustment of temporary bridge supports that span over SR-4. In order to ensure crew and public safety during this work, the contractor will close all lanes of SR-4 in the eastbound and westbound directions between the SR-4/SR-160 connector ramp and Laurel Road.... Read the rest
8/6/14 – CONSTRUCTION HAS BEEN RESCHEDULED FOR A LATER DATE. TRAFFIC ADVISORY – Nighttime Closures on Westbound I-80 to Begin in Early August – Plan for Detours Caltrans will soon install the first in a series of eleven approximately 25-foot-high overhead sign frames that will span the width of the westbound I-80 lanes. In the coming months, the sign frames will be installed between Cutting Boulevard in Richmond and Powell Street in Emeryville, necessitating lane and full westbound freeway closures in the vicinity of the installations.... Read the rest
HWY 4 Caltrans will close Lane #1 of SR-160  in Antioch, in the northbound direction between SR-4 and the 18th Street/Main Street off-ramp on Thursday evening, April 24, from 6:00 pm to 6:00 am. Calrtrans and the Contra Costa Transportation Authority (CCTA) are constructing two new connector ramps, one connecting westbound Highway 4 to northbound SR-160, and one connecting southbound SR-160 to eastbound Highway 4 as part of the Highway 4 improvements. The Highway 4 projects include improvements that will help revitalize eastern Contra Costa County.... Read the rest