Ramp still closed after truck hits guardrail on Northbound Highway 101 in San Francisco

SAN FRANCISCO (KGO) -- A closure on Northbound Highway 101 in San Francisco didn't help the afternoon commute. A ramp is still closed after a truck struck a guardrail.

The crash was initially reported shortly after 10:30 a.m. involving a hit-and-run vehicle and a heavy-duty truck that struck the guardrail just north of the split between Highway 101 and Interstate Highway 80 heading toward the Bay Bridge, California Highway Patrol spokesman Officer Bert Diaz said.

The crash caused a chunk of concrete to fall down in the area of 10th and Bryant streets, damaging a few cars, Diaz said. The hit-and-run vehicle remains at large and a description of it was not immediately available.

Crews are at the scene to repair the guardrail, prompting the closure of the two lanes of northbound Highway 101 on the Central Freeway toward Duboce Avenue, according to Diaz.

Traffic is being diverted to the Ninth Street exit.

Bay City News contributed to this report.