I-94
I-94 in In Detroit, Wayne County, Michigan received a condition grade of C (56/100). Built in 1962, the bridge carries 180K vehicles daily on I-94 over I-75.
I-94 carries a C on the BridgeSafety Condition Score with 56/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
The bridge was built in 1962 and is now 64 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. I-94 carries an average daily traffic count of 180,032 vehicles, with 7 lane(s) crossing I-75. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I-94 is a 64-year-old bridge located In Detroit in Wayne County, Michigan. The bridge carries I-94 over I-75 with 7 traffic lanes, handling approximately 180K vehicles per day. Built in 1962 and reconstructed in 1996, the structure spans 57.3 meters.
The bridge received a Condition Grade of C (56/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-94 has a Condition Score of 56/100 (Grade C). Its deck is rated 6/9, superstructure 6/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-94 was built in 1962 and reconstructed in 1996, making it 64 years old. The average bridge age in the United States is 48 years.
I-94 carries approximately 180K vehicles per day (average daily traffic). The bridge has 7 traffic lanes. It is 57.3 meters long and located on I-94 in In Detroit, Wayne County, Michigan.
No, I-94 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I-94 is located In Detroit in Wayne County, Michigan. The bridge carries I-94 over I-75. Its coordinates are 42.368572, -83.057717. It is maintained by State Highway Agency.
I-94 carries I-94 over I-75. The bridge is 57.3 meters long and was built in 1962, with reconstruction in 1996.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.