US Bridges

M-14 Ann Arbor RD over I-275

Fair

Wayne County, Michigan · 0.5 MI W of Livonia · Structure no. 000000000011966

Built
1972
53 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
262 ft
2 main spans
Daily traffic
30,420
2007 count
Owner
State
State Highway Agency

About this bridge

M-14 Ann Arbor RD over I-275 is a steel stringer/multi-beam or girder carrying M-14 Ann Arbor RD over I-275 in Wayne County, Michigan. It was built in 1972, so it is 53 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 30,420 vehicles a day, roughly 4% of them trucks, projected to reach 50,181 by 2018. The structure is 262 ft (79.9 m) long and 103 ft wide.

CarriesM-14 Ann Arbor RD
CrossesI-275
Location0.5 MI W of Livonia
RouteState Highway 14
Coordinates42.35957, -83.43575
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 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 rating95 US tons
Inventory rating56.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length262 ft (79.9 m)
Longest span133 ft (40.5 m)
Deck width103 ft (31.3 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,420 (2007)
Projected traffic50,181 by 2018
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 M-14 Ann Arbor RD over I-275 built?

It was built in 1972, making it 53 years old in 2025.

What condition is M-14 Ann Arbor RD over I-275 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 October 2024.

How much traffic does M-14 Ann Arbor RD over I-275 carry?

About 30,420 vehicles per day (2007 count), of which roughly 4% are trucks.

How long is M-14 Ann Arbor RD over I-275?

The structure is 262 ft (79.9 m) long with a longest span of 133 ft (40.5 m) and a deck 103 ft wide.

Who owns M-14 Ann Arbor RD over I-275?

It is owned by the State Highway Agency.