The Liberty Bridge is a bascule-type drawbridge located in Bay City, Michigan, United States.

It spans the Saginaw River and connects Vermont Street (on the west side of the river) and Woodside Avenue (on the east side).

[1] Starting June 16, 2023, an electronic toll is charged to motorists either through their BC-Pass,[2] E-ZPass transponder, or via license plate photo.

In order to receive federal funding, the new bridge was required to have four lanes.

A four-lane bridge at the same site would have necessitated the demolition of some historic buildings.