US Bridges

8 Mile Road over Chippewa River

Fair

Midland County, Michigan · 0.1 MI S of Chippewa R RD · Structure no. 000000000006948

Built
1976
49 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
3 main spans
Daily traffic
1,554
2021 count
Owner
County
County Highway Agency

About this bridge

8 Mile Road over Chippewa River is a prestressed concrete stringer/multi-beam or girder carrying 8 Mile Road over Chippewa River in Midland County, Michigan. It was built in 1976, so it is 49 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 1,554 vehicles a day, roughly 5% of them trucks, projected to reach 2,309 by 2041. The structure is 212 ft (64.6 m) long and 38 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries8 Mile Road
CrossesChippewa River
Location0.1 MI S of Chippewa R RD
RouteCounty Highway 0
CountyMidland County
StateMichigan
Coordinates43.58751, -84.40937
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length212 ft (64.6 m)
Longest span72 ft (21.9 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,554 (2021)
Projected traffic2,309 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 8 Mile Road over Chippewa River built?

It was built in 1976, making it 49 years old in 2025.

What condition is 8 Mile Road over Chippewa River 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 8 Mile Road over Chippewa River carry?

About 1,554 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 8 Mile Road over Chippewa River?

The structure is 212 ft (64.6 m) long with a longest span of 72 ft (21.9 m) and a deck 38 ft wide.

Who owns 8 Mile Road over Chippewa River?

It is owned by the County Highway Agency.