closure – 511 Contra Costa

Southbound I-680 Marina Vista Ramp Closure: May 4 – October, 2015 (Martinez)

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. Marina Vista and Waterfront Road will remain open during the extended ramp closure.
Please allow extra travel time when driving through this area and make sure to Slow for the Cone Zone. For more information about the project, visit the Caltrans Mococo Overhead Bridge Project webpage.
NOTE: Post edited to reflect postponement of closure to Monday, May 4.

Overnight/Early Morning Hwy 24 Lane Closures – April 19 & 20, 2015 (Lafayette)

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.

Advisory: I-680 Mococo Overhead Bridge Project Lane & Ramp Closures (Mar. 2015)

CaltransHorizCaltrans 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. The closure will remain in effect for about five months while the contractor removes the old off-ramp structure and builds a new structure.

  • Detour: During this 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
  • Marina Vista and Waterfront Road will remain open during the extended ramp closure

Please drive cautiously through the construction zone, follow the directions of flaggers, leave a safe traveling distance between your vehicle and the vehicle ahead of you, and Slow for the Cone Zone. The California Highway Patrol will be on site during these closures.
For more information about the project visit the Caltrans I-680 Mococo Bridge Rehabilitation Project page.

Overnight Highway 4 Closure (Antioch): February 25-27, 2015

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.
These closures are scheduled to take place on the evenings of February 25, 26, and 27th from 11:59pm to 5:00 am.
The detour for this work will be as follows:

  • Eastbound motorist will be directed off the highway at the SR-160 off-ramp and redirected to return to eastbound SR-4 via the Laurel Road on-ramp.
  • Westbound motorist will be directed off the highway at Laurel Road on-ramp and redirected to westbound SR-4 via the entrance of southbound SR-160.

Full-Freeway-Closure-betwee
Motorists are advised to expect delays and allow extra time for their commute. Please drive with caution through the detours and leave safe traveling distance between your vehicle and the vehicle ahead of you.

I-80 Closure WB at Carlson Blvd in Richmond (Aug. 2014)

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.
I-80 Overhead Sign Graphic
Travelers are advised of nighttime lane closures and full westbound closures beginning August 7, 2014.   Motorists are advised to expect detours and delays during the nighttime closures.
Beginning Tuesday, August 5: To facilitate sign frame installation, portions of westbound I-80 will be closed from 1 a.m. to 3 a.m. on Tuesdays and Thursdays. The first installation will occur at Carlson Boulevard in Richmond. During this time, westbound lanes will be closed to traffic in the vicinity of the installation, and motorists will be detoured to a local frontage road.  Eastbound and westbound lane closures of I-80 will continue on Sundays through Thursdays, beginning at 9 p.m. and ending at 5 a.m.
Every Tuesday and Thursday Continuing Until October:
Caltrans will continue to implement closures on Tuesdays and Thursdays between 9 p.m. the previous evening – 5 a.m. (lane closures) and 1 a.m. – 3 a.m. (full closures) on portions of westbound I-80 until all eleven sign frames have been installed. The second closure and sign frame installation will occur at Cutting Boulevard in Richmond.
Caltrans anticipates that the closures will continue through October 2014. However, this work is weather-dependent, and the schedule is subject to change.
Roadway work entails installing large overhead sign frames that will feature new electronic signage. The signage will be activated in early 2015 as part of a larger network of I-80 SMART Corridor strategies to ease traffic congestion and enhance safety on this heavily travelled corridor between the Bay Bridge Toll Plaza in Alameda County and the Carquinez Bridge in Contra Costa County.
Read the full press release
 
I-80 Smart Corridor Logo

Lane #1 of SR-160 in Antioch to Be Closed Temporarily (Apr. 2014)

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. The projects expand Highway 4 from four to eight lanes between Loveridge Road and SR-160, add two connector ramps between Highway 4 and Highway 160, and add a BART extension from Pittsburg to Antioch (eBART). This will greatly improve transit accessibility for the region and help reduce traffic congestion and enhance the quality of life for the more than 250,000 residents of eastern Contra Costa County. The projects have been carefully staged to keep 130,000 vehicles per day moving as major construction and demolition work continue, and include over *$1.3 billion in State, Federal, Contra Costa Measure C & J sales tax, regional bridge tolls, and other local funds.
HWY 4