UPDATE: An engineer inspected the bridge and declared it safe for travel.  The bridge will reopen early Monday afternoon when the guardrail has been repaired.

The Stark Street Bridge was closed Monday morning around 7 a.m. when a semi hit the east end of the bridge. 

The bridge will be closed until county inspectors determine it's safe to use.

Alternate routes around the bridge include Interstate 84 and the Historic Columbia River Highway in Troutdale.