A collision on westbound Interstate 80 just east of Treasure Island Road at 7:36 a.m. Wednesday blocked at least one lane and caused delays on the Bay Bridge.

A no-injury collision occurred at the intersection of Guerrero and 18th streets in the Mission district at 7:37 a.m.

The Muni 1X-California Express, 19-Polk, 28-19th Avenue, 43-Masonic and 49-Mission/Van Ness lines had longer than usual wait times as of 6:14 a.m.

A hit-and-run involving no injuries occurred on northbound Interstate 280 south of the Alemany Boulevard offramp at 8:01 a.m.

A collision occurred on U.S. Highway 101 at the Third Street offramp at 8:10 a.m.

The eastbound N-Judah line was delayed at 8:04 a.m. at Duboce Avenue and Noe Street due to an issue with a vehicle's steps.