US Bridges

I-94 over Greenfield RD

Good

Wayne County, Michigan · In Dearborn · Structure no. 000000000011133

Built
1971
54 years old, rebuilt 2004
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
178 ft
2 main spans
Daily traffic
98,506
2007 count
Owner
State
State Highway Agency

About this bridge

I-94 over Greenfield RD is a steel stringer/multi-beam or girder carrying I-94 over Greenfield RD in Wayne County, Michigan. It was built in 1971 and reconstructed in 2004, so it is 54 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 98,506 vehicles a day, roughly 16% of them trucks, projected to reach 89,700 by 2018. The structure is 178 ft (54.2 m) long and 122 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-94
CrossesGreenfield RD
LocationIn Dearborn
RouteInterstate 94
CountyWayne County
StateMichigan
Coordinates42.30001, -83.18309
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83.2 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length178 ft (54.2 m)
Longest span89 ft (27.1 m)
Deck width122 ft (37.2 m)
Roadway width120 ft (36.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98,506 (2007)
Projected traffic89,700 by 2018
Trucks16%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-94 over Greenfield RD built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2004.

What condition is I-94 over Greenfield RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does I-94 over Greenfield RD carry?

About 98,506 vehicles per day (2007 count), of which roughly 16% are trucks.

How long is I-94 over Greenfield RD?

The structure is 178 ft (54.2 m) long with a longest span of 89 ft (27.1 m) and a deck 122 ft wide.

Who owns I-94 over Greenfield RD?

It is owned by the State Highway Agency.