A semi-truck struck the underside of the Clairemont Mesa Boulevard overcrossing on southbound State Route 163 in Kearny Mesa, San Diego, around noon on Thursday, October 22, sending chunks of concrete falling onto the freeway lanes below, according to NBC 7 San Diego.
Source: NBC 7 San Diego
Caltrans District 11 said the two right lanes of southbound SR-163 at Clairemont Mesa Boulevard were closed so crews could remove the debris, and the California Highway Patrol's San Diego office issued traffic advisories at 3:45 p.m. and 4:15 p.m. warning the lanes would stay shut for an unknown duration. Photos from CHP San Diego showed the overpass with exposed wiring where the concrete broke away and Caltrans crews assessing the damage.
Source: Caltrans District 11 / CHP San Diego (via NBC 7)
The driver has not been publicly identified in the official updates, and no injuries were reported. Truckers and other drivers who use SR-163 through Kearny Mesa should expect continued delays while the overpass is inspected and repaired.