Closure of I-680 between I-580/I-680 connector coming March 15-18

Full closure of I-680 between I-580/I-680 connector coming March 15-18
Map courtesy Caltrans.

CONTRA COSTA COUNTY, CA (Mar. 13, 2024) — Caltrans is scheduled to close southbound Interstate 680 in Pleasanton between the I-580/I-680 Connector and Koopman Road on Friday, March 15 through Monday morning, March 18, 2024.

During the closure, contractor will replace a portion of the existing deteriorated roadway with new pavement on southbound I-680, between the I-580/I-680 Connector and Koopman Road. The work will repair deteriorating existing pavement and enhance motorist safety while reducing the number of nightly closures needed on the project.

The I-680 freeway will be closed in the southbound direction between the I-580/I-680 Connector and Koopman Road from 9:00 p.m. Friday, March 15 to 4:00 a.m. the following Monday, March 18.

This weekend closure will rehabilitate the pavement an entire year ahead of schedule, giving motorists a smooth ride starting in January 2024 instead of having to drive on deteriorated pavement until 2025. It also will accomplish the amount of work that otherwise would require an estimated 40 nighttime closures.

Caltrans will place portable changeable message signs prior to closure advising motorists of this closure. This will remain in effect throughout the weekend while the work continues.

Northbound I-680 will remain open and the closure will not affect it.

Caltrans knows that the closures will impact the motoring public and have taken measures to minimize inconvenience. Caltrans thanks the motoring public in advance for your patience.

Detours

California Highway Patrol officers and message signs will guide motorists. Detours for the closures include:

  1. Motorists driving west on Interstate 80 in Vacaville and Fairfield will remain on I-80 to southbound I-880.
  2. Motorists on southbound I-680 near the Benicia Bridge can take I-780 west to I-80 to southbound I-880.
  3. Motorists on southbound I-680 in Concord can take SR-4 to I-80 to southbound I-880.
  4. Motorists on southbound I-680 in Walnut Creek can take SR-24 to I-80 to southbound I-880.
  5. Motorists on Southbound I-680 in Danville take westbound I-580 to SR-238 to southbound I-880.
  6. Motorists on Southbound I-680 in Danville take eastbound I-580 to SR-84 to southbound I-680.
  7. Motorists on westbound I-580 coming from Tracy can exit onto southbound SR-84 and get back on southbound I-680 just south of Calaveras Road near Sunol.
  8. Motorists on westbound Sunol Boulevard can only take northbound I-680. (Access to Southbound I-680 is restricted in Pleasanton City and Sunol City)
  9. Full Shutdown of southbound Foothill Road and southbound Pleasanton Sunol Road at Castlewood Drive: Motorists on southbound Foothill can only turn left onto Castlewood Drive and only turn left again onto Pleasanton Sunol Road to northbound I-680. (Access to Southbound I-680 is restricted in Pleasanton city and Sunol City)

Full Shutdown Locations:

    1. I-580/I-680 Connectors onto southbound I-680
    2. Southbound Saint Patrick Way on ramp onto southbound I-680
    3. Southbound Stoneridge Drive on ramp onto southbound I-680
    4. Southbound Bernal Avenue on ramp onto southbound I-680
    5. Southbound Sunol boulevard on ramp onto southbound I-680
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