Caltrans will temporarily close Bore #3 of the Caldecott Tunnel and a 3/4-mile-long stretch of westbound Highway 24 west of the tunnel in Oakland for several hours during the early morning of Sunday, March 2nd. The purpose of the closure is to facilitate the removal of 80-foot-wide highway directional sign that has been replaced by new directional signs.
Eastbound traffic on SR-24 will not be impacted by this closure, and will remain open to traffic.
In order to minimize disruptions to motorists along the SR-24 corridor, Caltrans has scheduled work to occur during a period of typically low traffic volume. We thank motorists in advance for their cooperation during the upcoming closure.
Motorists are encouraged to use alternative routes during this temporary closure.
Pending favorable weather conditions, the following closures and detours are planned:
Sunday, March 2 from 12:01 am – 5 am
- Orinda: The left lanes of westbound SR-24 will be closed
- Bore #3 and westbound SR-24 in Oakland from the Caldecott Tunnel to the westbound 24/northbound 13 connector ramp will be closed to traffic
Saturday, March 1 from 6 pm – Sunday, March 2 at 11 am
- The westbound Caldecott Lane On-Ramp in Oakland will be closed to traffic
- To access Highway 13: Motorists using Bore #4 will be detoured to the Caldecott Lane off-ramp in Oakland to access north and southbound Highway 13. (Please see detour map below)
- To continue westbound: Motorists continuing westbound will be detoured north across the Kay Street Bridge and west on Broadway to the westbound Broadway on-ramp in Oakland (Please see detour map below)
Detour signs will be posted along SR-24 in Oakland during the closure.
Below is a map of the planned detour on Sunday, March 2 from 12:01 – 5 a.m.
On Friday, September 6, 2013, the westbound Fish Ranch Road on-ramp in Orinda, Bore Three and the westbound Caldecott Lane off-ramp in Oakland will be closed, beginning at 10:00 p.m. and reopening at 9:00 a.m. on Saturday, September 7, 2013.
In addition to the excavation of a 3,400-foot-long tunnel north of the existing three bores, the $405 million Caldecott Fourth Bore Project includes traffic improvements on the eastern and western sides of the tunnel. The tunnel is on schedule to open to traffic in late 2013.
View the Caldecott Tunnel Traffic Advisories page
Below is the schedule of traffic advisories for Oakland from Friday evening to Saturday morning associated with work on the Caldecott Fourth Bore Project.
Eastbound (in Oakland)
Broadway On-Ramp: Closed 8 PM on Friday, August 5 to 8 AM on Saturday, August 6 for the installation of K-Rail.
Vehicles will be detoured to Brookside Avenue in Oakland.
Lane #4 Eastbound 24: Closed between Kay Street Overcrossing and the west end of Bore #1 from 10:30 PM on Friday, August 5 to 6 AM on Saturday, August 6. Bore #1 will tentatively close from midnight until 7 AM, Saturday, August 6.
Westbound (in Oakland)
Caldecott Lane On-Ramp Closure: 9 PM on Friday, August 5 to 8 AM on Saturday, August 6 for the removal of K-Rail.
Caldecott Lane Off-Ramp: 8 PM on Friday, August 5 to 10 AM on Saturday, August 6.
Vehicles will be detoured to the State Route 13 connector ramp.
(Pending) Upcoming Closures in Contra Costa County (August 8, 9)
Westbound Fish Ranch Road Off-Ramp: Closed 9 PM on Monday, August 8 to 5 AM on Tuesday, August 9.
The work is being performed as part of the Caldecott Tunnel Fourth Bore Project. In addition to the excavation of a 3,400-foot-long tunnel north of the existing three bores, the project involves traffic improvements on the eastern and western sides of the tunnel.
For more information on the upcoming ramp closure, visit www.caldecott-tunnel.org