US Bridges

I-275 NB over Huron R & Metropark Path

Fair

Wayne County, Michigan · New Boston Village · Structure no. 000000000011885

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
285 ft
4 main spans
Daily traffic
23,572
2007 count
Owner
State
State Highway Agency

About this bridge

I-275 NB over Huron R & Metropark Path is a steel stringer/multi-beam or girder carrying I-275 NB over Huron R & Metropark Path 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 23,572 vehicles a day, roughly 18% of them trucks, projected to reach 18,841 by 2018. The structure is 285 ft (86.9 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-275 NB
CrossesHuron R & Metropark Path
LocationNew Boston Village
RouteInterstate 275
CountyWayne County
StateMichigan
Coordinates42.14325, -83.38183
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.2 US tons
Inventory rating61.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length285 ft (86.9 m)
Longest span85 ft (25.8 m)
Deck width56 ft (17.2 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,572 (2007)
Projected traffic18,841 by 2018
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-275 NB over Huron R & Metropark Path built?

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

What condition is I-275 NB over Huron R & Metropark Path 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 2024.

How much traffic does I-275 NB over Huron R & Metropark Path carry?

About 23,572 vehicles per day (2007 count), of which roughly 18% are trucks.

How long is I-275 NB over Huron R & Metropark Path?

The structure is 285 ft (86.9 m) long with a longest span of 85 ft (25.8 m) and a deck 56 ft wide.

Who owns I-275 NB over Huron R & Metropark Path?

It is owned by the State Highway Agency.