Interstate 75 at Junction Street in southwest Detroit was closed Wednesday for a bridge demolition, state officials said.
Michigan Department of Transportation officials said the freeway will be closed until Friday.
A semi-truck crashed into the Junction Street bridge over I-75 on Tuesday. Inspectors found that the bridge had to be replaced.
Northbound I-75 will be closed at Livernois; southbound is closed between Springwells and Northline Road for another project.
Southbound was expected to reopen by rush hour Thursday morning. MDOT will close northbound at 7:30 p.m. Thursday night at Livernois.
It was expected to reopen Friday morning.
Motorists can use east Fort Street as a detour, officials said. Drivers heading south are advised to avoid the freeway and use westbound Interstate 96r.