US Bridges

I-275 SB over Schoolcraft RD

Fair

Wayne County, Michigan · 0.3 MI W of Livonia · Structure no. 000000000011970

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
293 ft
4 main spans
Daily traffic
65,653
2007 count
Owner
State
State Highway Agency

About this bridge

I-275 SB over Schoolcraft RD is a steel stringer/multi-beam or girder carrying I-275 SB over Schoolcraft RD 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 65,653 vehicles a day, roughly 6% of them trucks, projected to reach 74,210 by 2018. The structure is 293 ft (89.3 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-275 SB
CrossesSchoolcraft RD
Location0.3 MI W of Livonia
RouteInterstate 275
CountyWayne County
StateMichigan
Coordinates42.38273, -83.43711
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.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length293 ft (89.3 m)
Longest span100 ft (30.4 m)
Deck width66 ft (20.1 m)
Roadway width63 ft (19.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65,653 (2007)
Projected traffic74,210 by 2018
Trucks6%
Lanes on structure4
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$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-275 SB over Schoolcraft RD built?

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

What condition is I-275 SB over Schoolcraft RD 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 SB over Schoolcraft RD carry?

About 65,653 vehicles per day (2007 count), of which roughly 6% are trucks.

How long is I-275 SB over Schoolcraft RD?

The structure is 293 ft (89.3 m) long with a longest span of 100 ft (30.4 m) and a deck 66 ft wide.

Who owns I-275 SB over Schoolcraft RD?

It is owned by the State Highway Agency.