The California Department of Transportation (Caltrans) announced an extended weekend closure of northbound State Route 57 (SR-57) from Tonner Canyon Road to the Los Angeles/Orange County line for paving work. The closure is scheduled to begin Friday and will last from Jan. 28 through Monday, Jan. 31.
Closures include:
- Full closure of northbound SR-57 from Tonner Canyon Road to Los Angeles/Orange County line on Friday, Jan. 28 from 11:59 p.m. to 6 a.m. and Sunday, Jan. 30 from 10 p.m. to 4 a.m.
- Northbound SR-57 right lane closed from Tonner Canyon Road to Los Angeles/Orange County line on Saturday, Jan. 29 through Sunday, Jan. 30 from 6 a.m. to 10 p.m.
Closures, however, are weather permitting and subject to change.
This closure is part of a pavement replacement project to remove and replace concrete slabs in both directions of SR-57 which will enhance ride quality and maximize the service of the roadway.
Residents and businesses located near the freeway are advised to anticipate noise, vibrations, and dust associated with construction activities.
Vanguard Construction of Livermore and Griffith Company of Brea are the contractors on this $98.9 million project, which is anticipated to be completed in late 2023. This project is funded by Senate Bill 1 (SB 1), the Road Repair and Accountability Act of 2017.
Motorists should expect delays and are strongly advised to use alternate routes. Detours will be posted. Additionally, motorists can check traffic conditions before they leave by visiting the Caltrans Quickmap at quickmap.dot.ca.gov.
