US Bridges

I-275 NB Collector over M-14

Fair

Wayne County, Michigan · 0.3 MI W of Livonia · Structure no. 000000000011974

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
453 ft
4 main spans
Daily traffic
11,680
1982 count
Owner
State
State Highway Agency

About this bridge

I-275 NB Collector over M-14 is a steel stringer/multi-beam or girder carrying I-275 NB Collector over M-14 in Wayne County, Michigan. It was built in 1971, 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 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 11,680 vehicles a day, roughly 7% of them trucks, projected to reach 11,680 by 2002. The structure is 453 ft (138.1 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-275 NB Collector
CrossesM-14
Location0.3 MI W of Livonia
RouteInterstate 275
CountyWayne County
StateMichigan
Coordinates42.38695, -83.43585
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.6 US tons
Inventory rating58.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length453 ft (138.1 m)
Longest span134 ft (40.8 m)
Deck width39 ft (11.8 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,680 (1982)
Projected traffic11,680 by 2002
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-275 NB Collector over M-14 built?

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

What condition is I-275 NB Collector over M-14 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 August 2024.

How much traffic does I-275 NB Collector over M-14 carry?

About 11,680 vehicles per day (1982 count), of which roughly 7% are trucks.

How long is I-275 NB Collector over M-14?

The structure is 453 ft (138.1 m) long with a longest span of 134 ft (40.8 m) and a deck 39 ft wide.

Who owns I-275 NB Collector over M-14?

It is owned by the State Highway Agency.