Highway Closure on I-680 at the Mission San Jose (SR-238) Overpass for Bridge Rehabilitation Project and Additional Local Street Closure at Old Canyon Road in Fremont on the Weekend of August 8, 2025
ADDITIONAL LOCAL STREET CLOSURE: OLD CANYON ROAD
Old Canyon Road will be closed at the intersection of Niles Canyon Road starting Friday, August 8 at 3:00 PM until Monday, August 11 at 5:00 AM. With the planned closure of northbound I-680 at the Mission Blvd North interchange for the weekend of August 8-11, the City anticipates heavy traffic along the Caltrans detour route of Mission Boulevard and Niles Canyon Road. To help deter freeway traffic entering local residential roadways, Old Canyon Road at the intersection of Niles Canyon Road will be closed. Please be mindful, as navigation apps may direct some motorists onto local residential roadways to bypass the Mission Blvd Boulevard corridor.
While the City recognizes the I-680 closure will be an inconvenience to nearby residents, this additional road closure aims to provide relief to local residents near Mission Boulevard. The City will report this roadway closure to navigation apps and monitor traffic throughout the weekend. We recognize how disruptive the closure will be and have learned from other cities during previous closures that these smaller measures could help lessen the impact from traffic apps.
NORTHBOUND I-680 FULL HIGHWAY CLOSURE:
A segment of NB I-680 will be closed and traffic will be detoured through the Mission Blvd/SR-238 Off Ramp towards Eastbound SR-84. Closures will start Friday August 8 at 10:00 PM and conclude on the following Monday August 11 at 5:00 AM.
NORTHBOUND I-680 DETOUR:
Motorists traveling northbound on I-680 will need to exit right onto Mission Blvd/SR-238 Off-Ramp; Left towards NB Mission Blvd/SR-238; Continue on Mission Blvd/SR-238; Make a right onto Niles Canyon Rd (SR-84) and continue; Right onto NB I-680/SR-84 On-Ramp; Merge and continue onto NB I-680 towards Sacramento.
I-680 CLOSURE NOTICES AVAILABLE IN SPANISH AND IN CHINESE:
Fremontpolice.gov/I680ClosureSpanishTranslation
Fremontpolice.gov/I680ClosureChineseTranslation
For general information on the I-680 project, please visit: https://dot.ca.gov/680DeckRehab
For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, please visit Caltrans QuickMap: http://quickmap.dot.ca.gov
