A big rig blocked the Treasure Island offramp on westbound Interstate 80 of the Bay Bridge at 7:57 a.m. Monday.

Outbound Muni subway service was delayed at Civic Center station at 7:38 a.m. Monday due to a train with an intermittent power issue that went out of service.

The Muni 9-San Bruno, 43-Masonic and 71-Haight/Noriega lines had normal than usual wait times as of 6:25 a.m.

A no-injury collision occurred on southbound Interstate 280 just north of the Avalon Drive onramp at 8:32 a.m.

A collision occurred on eastbound I-80 just west of the Seventh Street offramp at 8:51 a.m.

The northbound Muni F-Market and Wharves line was delayed at Fourth and King streets at 8:34 a.m. due to a signal issue.