by Jessica KwongA collision occurred on northbound U.S. Highway 101 just south of the Silver Avenue offramp at 7:35 a.m. Friday, blocking at least one lane and causing delays.
Due to construction work, Muni's westbound F-Market streetcar line was switching back at Noe Street at 5:16 a.m. Riders looking to travel eastbound should board at Dolores Street.
There may be residual delays on the outbound N-Judah and J-Church lines after a delay by the switchback at Church Street at 6:57 a.m.
The Muni 1X-California Express, 9-San Bruno and 54-Felton lines had longer than usual wait times at 5:08 a.m.