Full Closure of Southbound I-680 in Pleasanton between I-580/I-680 Connector and Koopman Road April 26-29, 2024

Published: Apr 18, 2024

PLEASANTON / ALAMEDA COUNTY - A full weekend closure of southbound Interstate 680 between the I-580/I-680 connector in Pleasanton and Koopman Road in Sunol will take place Friday, April 26 through Monday morning, April 29.

Southbound Interstate 680 will be closed between the I-580/I-680 Connector in Pleasanton and Koopman Road in Sunol from 9 p.m. Friday, April 26 through 4 a.m. Monday morning, April 29, 2024.

During the closure, the 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. This weekend closure will accomplish the amount of work that otherwise would require an estimated 40 nighttime closures.

There will be no more full weekend closures of southbound I-680 in this specific area. However, there will be weekend lane closures of southbound I-680 in the San Ramon area in May. These will not be full closures.

In the case of rain or unanticipated developments, the closures will be rescheduled and the public will be notified.

Portable changeable message signs will be placed prior to closure advising motorists of this closure and will remain in effect throughout the weekend while work is being performed.

Northbound I-680 will remain open and will not be affected by the closure.

Caltrans is aware that the closures will impact the motoring public and measures are being taken to minimize inconvenience. Caltrans thanks the motoring public in advance for your patience as we work to improve I-680.

California Highway Patrol officers and message signs will be on hand to guide motorists. Detours for the closures are as follows:

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)
10. 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

For more information, please visit the Alameda County Transportation Commission website at https://bit.ly/43dKwg1.

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