I-680 Paving Project | Caltrans (2024)

Current Traffic Advisories

Southbound I-680 between Alcosta Boulevard in San Ramon and I-580/I-680 Connector Re-Opened at Approximately 4:00 AM on Monday, June 3, 2024

Caltrans reopened all lanes on southbound Interstate 680 (I-680) between Alcosta Boulevard in San Ramon and the I-580/I-680 connector in Pleasantonat approximately 4:00 AM on Monday, June 3.

During this weekend’s partial lane closure, workers removed deteriorated pavement, replacing it with concrete for a smooth ride for motorists for decades to come.

Caltrans shrank 40 nights of nighttime closures into one weekend, sparing motorists three months of nighttime closures. Weekend closures also enhance safety for workers and motorists.

Learn more about the closure atwww.680paving.comor leave a question on our project hotline at (510) 286-0319.
Caltrans thanks the motoring public for its patience as Caltrans works to operate and maintain our state’s highway bridges and tunnels including I-680.

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Additional project resources including downloadable maps, image galleries, and video clips can be found on themedia resources page.

Caltrans Repaving Northbound Interstate 680 Between Sunol and San Ramon

Caltrans is embarking upon a major improvement project that will repave northbound Interstate 680 and replace entire sections of the roadway to enhance safety and provide a smoother ride to motorists.

The project will take place on I-680 between Koopman Road in Sunol and Alcosta Boulevard in San Ramon.

Caltrans will need to close freeway lanes and entire sections of the freeway to do the work. The work is scheduled to begin in December, starting in the Sunol area and working northward, and will last about a year and a half.

Additionally, in 2023, work will necessitate closing I-680 for 72 hours on the following holidays:

1. Martin Luther King holiday (mid-January 2023)
2. President’s Day (mid-February 2023)
3. Memorial Day (late May 2023)

These closures will shorten the time needed to complete the project. Caltrans will provide additional holiday closure information as soon it becomes available. The public will be notified in advance via traffic advisories, a webpage and social media.

The first part of the project is located in the City of Sunol.

To perform this work, Caltrans has scheduled to close northbound Interstate 680 overnight from the I-680/State Route 84 junction to the Sunol Boulevard exit starting in December 2022 and anticipated to complete in April 2023.

All lanes of northbound I-680 will be closed from 10 p.m. to 5 a.m. Monday through Friday. Weekend closures are not anticipated, barring unforeseen circ*mstances. All work is weather-dependent.

Caltrans is aware that the closures will impact the motoring public and every step is being taken to minimize inconvenience.

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

Detours

• Regional detours will be activated to advise motorists coming from the South Bay to take I-880/SR-238/I-580 instead of I-680.
• For closures between the Koopman Road and Sunol Boulevard interchanges:
  680 North Traffic
  Exit I-680 at Calaveras, take Paloma Way, take Pleasanton Sunol Road and re-enter northbound I-680 at Sunol Boulevard.
  580 East Traffic
  Take eastbound SR-84 to I-580.
  
• For closures between Sunol Boulevard and Bernal Avenue:
  680 North Traffic
  Exit I-680 at Sunol Boulevard, take Bernal Avenue and re-enter the freeway from Bernal Avenue
  580 East Traffic
  Take eastbound SR-84 to I-580.
  

  

Caltrans thanks the motoring public in advance for your patience as we work to improve I-680.

Traffic Advisories

• Partial Closure of Southbound I-680 between Alcosta Boulevard in San Ramon and I-580/I-680 Connector in Pleasanton May 31-June 3, 2024
• Full Closure of Southbound I-680 in Pleasanton between I-580/I-680 Connector and Koopman Road President’s Day Weekend, Feb. 16-20, 2024
• Full Closure of Southbound I-680 in Pleasanton between I-580/I-680 Connector and Koopman Road MLK Jr. Weekend, Jan. 12-16, 2024
• Full Closure of Northbound I-680 in Sunol/Pleasanton Between State Route 84 and Sunol Boulevard Three Consecutive Weekends in February 2023
• UPDATE: POSTPONED:Full Closure of Northbound I-680 in Sunol Between State Route 84 and Sunol Boulevard on MLK Holiday Weekend Jan. 13-17, 2023
• Northbound I-680 Closures Between SR-84 and Sunol Boulevard In Pleasanton Sunday through Thursday Nights Starting January 8, 2023
• Full Closure of Northbound I-680 in Sunol Between State Route 84 and Sunol Boulevard on MLK Holiday Weekend Jan. 13-17, 2023 (In Case of Rain, Closure Will be Rescheduled)
• ACTUALIZACION: Cierre de el I-680 en dirección norte durante la noche entre la Ruta Estatal 84 y Sunol Boulevard en Sunol Diciembre 12, 2022-Abril 2023
• Northbound I-680 Overnight Closures Between State Route 84 and Sunol Boulevard in Sunol December 2022-April 2023 (UPDATE: 12/5/2022)