US Bridges

I-96 WB over M-104

Fair

Ottawa County, Michigan · At SE Limits of Nunica · Structure no. 000000000008796

Built
1961
64 years old, rebuilt 2013
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
180 ft
3 main spans
Daily traffic
15,900
2013 count
Owner
State
State Highway Agency

About this bridge

I-96 WB over M-104 is a steel stringer/multi-beam or girder carrying I-96 WB over M-104 in Ottawa County, Michigan. It was built in 1961 and reconstructed in 2013, so it is 64 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15,900 vehicles a day, roughly 7% of them trucks, projected to reach 19,400 by 2033. The structure is 180 ft (54.9 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-96 WB
CrossesM-104
LocationAt SE Limits of Nunica
RouteInterstate 96
CountyOttawa County
StateMichigan
Coordinates43.07334, -86.07535
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length180 ft (54.9 m)
Longest span78 ft (23.7 m)
Deck width47 ft (14.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,900 (2013)
Projected traffic19,400 by 2033
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-96 WB over M-104 built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2013.

What condition is I-96 WB over M-104 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does I-96 WB over M-104 carry?

About 15,900 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is I-96 WB over M-104?

The structure is 180 ft (54.9 m) long with a longest span of 78 ft (23.7 m) and a deck 47 ft wide.

Who owns I-96 WB over M-104?

It is owned by the State Highway Agency.