US Bridges

10 Mile RD over I-75 NB

Fair

Chippewa County, Michigan · 1.1 MI S of M-28 · Structure no. 000000000001580

Built
1963
62 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
356 ft
6 main spans
Daily traffic
287
2010 count
Owner
State
State Highway Agency

About this bridge

10 Mile RD over I-75 NB is a steel stringer/multi-beam or girder carrying 10 Mile RD over I-75 NB in Chippewa County, Michigan. It was built in 1963, so it is 62 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 287 vehicles a day, projected to reach 316 by 2025. The structure is 356 ft (108.5 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries10 Mile RD
CrossesI-75 NB
Location1.1 MI S of M-28
RouteCounty Highway 0
CountyChippewa County
StateMichigan
Coordinates46.36022, -84.41846
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.4 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length356 ft (108.5 m)
Longest span77 ft (23.6 m)
Deck width31 ft (9.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic287 (2010)
Projected traffic316 by 2025
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
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$100,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was 10 Mile RD over I-75 NB built?

It was built in 1963, making it 62 years old in 2025.

What condition is 10 Mile RD over I-75 NB 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 April 2023.

How much traffic does 10 Mile RD over I-75 NB carry?

About 287 vehicles per day (2010 count).

How long is 10 Mile RD over I-75 NB?

The structure is 356 ft (108.5 m) long with a longest span of 77 ft (23.6 m) and a deck 31 ft wide.

Who owns 10 Mile RD over I-75 NB?

It is owned by the State Highway Agency.