SAN DIEGO (KGTV) — The right lanes of 163 south at Clairemont Mesa Boulevard were closed after a semi-truck struck the underside of the Clairemont Mesa overcrossing Thursday morning, according to Caltrans.
As of 10:45 p.m., all lanes on southbound 163 have reopened.
The incident was first reported around 7:05 a.m., according to a post by the California Highway Patrol San Diego.
🚧TRAFFIC ADVISORY 🚧 As of 7:05 a.m., on 10/22/26., The two right lanes of State Route 163 Southbound at Clairemont Mesa Boulevard will be closed for an unknown duration. Please expect delays in the area. https://t.co/J0OMe3rUcs
— California Highway Patrol San Diego (@CHP_San_Diego) October 23, 2026