| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date / Builder or Contractor |
| I-94 / I-69 Black River Bridge
| I-69 / I-94 Over Black River and Riverside Drive | Port Huron: St. Clair County, Michigan | Metal Deck Girder, Stationary | 1950 By: Fry and Cain / Walter Toebe Company |
| Technical Facts |
| Structure Length | Roadway Width | Navigation Vertical Clearance | Main Spans | Approach Spans |
| 766 Feet (233.5 Meters) | 56.8 Feet (17.3 Meters) | 19.7 Feet (6 Meters) | 3 | 7 Steel Stringers |
Although not the most beautiful bridge in the world, this is a good example of a bridge that will be missed by people who see this bridge from below when a new bridge is built. This bridge was built in 1950, and was probably part of M-146, a short trunkline road that was long ago decommissioned. The construction date and also the cement detailing above the piers and abutments suggests that this bridge once had standard plan steel guardrails, like on Sigler Road. These have been replaced by ugly new Jersey Barriers, which crippled the aesthetic quality of the bridge, especially on the deck. The bridge is a serious bottleneck for expressway traffic, lacking a merge lane for Water Street, which is further testimony to this bridge's pre-interstate origin. The bridge can be a bit unpleasant to drive across, and is probably partly what is leading MDOT to consider demolishing this bridge. Also, the planned expansion of the toll and customs plaza for the Blue Water Bridge is partly what may result in this bridge's demise, as one of the plans was to make this location have two bridges, to supports the idea of moving the plaza out away from the Blue Water Bridges.
