US Bridges

Grange Hall RD over I-75

Fair

Oakland County, Michigan · 3.3 MI SE of Genesee Col · Structure no. 000000000008037

Built
1961
64 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
237 ft
4 main spans
Daily traffic
7,410
1974 count
Owner
State
State Highway Agency

About this bridge

Grange Hall RD over I-75 is a steel stringer/multi-beam or girder carrying Grange Hall RD over I-75 in Oakland County, Michigan. It was built in 1961, so it is 64 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 7,410 vehicles a day, roughly 3% of them trucks, projected to reach 7,410 by 1977. The structure is 237 ft (72.2 m) long and 36 ft wide.

Location

Open in Google Maps
CarriesGrange Hall RD
CrossesI-75
Location3.3 MI SE of Genesee Col
RouteCounty Highway 6388
CountyOakland County
StateMichigan
Coordinates42.8155, -83.56956
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length237 ft (72.2 m)
Longest span80 ft (24.5 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,410 (1974)
Projected traffic7,410 by 1977
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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$188,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Grange Hall RD over I-75 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Grange Hall RD over I-75 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 December 2024.

How much traffic does Grange Hall RD over I-75 carry?

About 7,410 vehicles per day (1974 count), of which roughly 3% are trucks.

How long is Grange Hall RD over I-75?

The structure is 237 ft (72.2 m) long with a longest span of 80 ft (24.5 m) and a deck 36 ft wide.

Who owns Grange Hall RD over I-75?

It is owned by the State Highway Agency.