What to KnowAll lanes will be closed starting at 9 p.m. Friday at the Interstate 5 split and end at the Governor Drive exit.The portion of the freeway is expected to reopen by 5 a.m. Monday, April 20.Alternate routes to reach southbound I-805 will be available via the I-5, SR-52, and I-8 connectors.
Caltrans is warning drivers that all southbound lanes of a portion of the Interstate 805 will be closed starting on Friday.
The closure will begin at 9 p.m. at the Interstate 5 split and end at the Governor Drive exit. All entrances and exits into the I-805 will be closed at Nobel Drive.
The portion of the freeway is expected to reopen by 5 a.m. Monday, April 20.
Alternate routes to reach southbound I-805 will be available via the I-5, SR-52, and I-8 connectors.
🚧FULL WEEKEND CLOSURE OF I-805🚧
Plan ahead for all lanes of SB I-805 to close from the I-5 split to Governor Dr.
⏰Fri, Apr 17 at 9PM to Mon, Apr 20 at 5AM
👷♀️Crews will conduct culvert replacement, pavement upgrades & roadside safety enhancements.
Use https://t.co/pt1qWYJmgc pic.twitter.com/r55Ilg55Sk
— Caltrans District 11 (@SDCaltrans) April 14, 2026
Caltrans says crews will be conducting culvert replacement underneath the freeway, pavement upgrades and roadside safety enhancements.
The upgrades are part of a $53.7 million State Highway Operation Protection Program project, with $47.6 million from Federal funds and the remaining $6.1 million from State funds.
The closure will not affect bus service nor trolley service in the area.