US Bridges

I-275 NB over S Huron River Drive

Fair

Wayne County, Michigan · In Romulus · Structure no. 000000000011911

Built
1974
51 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
137 ft
1 main span
Daily traffic
35,403
2007 count
Owner
State
State Highway Agency

About this bridge

I-275 NB over S Huron River Drive is a steel stringer/multi-beam or girder carrying I-275 NB over S Huron River Drive in Wayne County, Michigan. It was built in 1974, so it is 51 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 6 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 35,403 vehicles a day, roughly 9% of them trucks, projected to reach 37,380 by 2018. The structure is 137 ft (41.9 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-275 NB
CrossesS Huron River Drive
LocationIn Romulus
RouteInterstate 275
CountyWayne County
StateMichigan
Coordinates42.21239, -83.40477
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating65.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length137 ft (41.9 m)
Longest span137 ft (41.9 m)
Deck width56 ft (17.2 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,403 (2007)
Projected traffic37,380 by 2018
Trucks9%
Lanes on structure3
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$106,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-275 NB over S Huron River Drive built?

It was built in 1974, making it 51 years old in 2025.

What condition is I-275 NB over S Huron River Drive 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 September 2023.

How much traffic does I-275 NB over S Huron River Drive carry?

About 35,403 vehicles per day (2007 count), of which roughly 9% are trucks.

How long is I-275 NB over S Huron River Drive?

The structure is 137 ft (41.9 m) long with a longest span of 137 ft (41.9 m) and a deck 56 ft wide.

Who owns I-275 NB over S Huron River Drive?

It is owned by the State Highway Agency.