US Bridges

Chippewa Road over Chippewa River

Fair

Isabella County, Michigan · 0.1 M S NE Cor Sec 11 T14 · Structure no. 000000000004327

Built
1980
45 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
216 ft
3 main spans
Daily traffic
502
2002 count
Owner
County
County Highway Agency

About this bridge

Chippewa Road over Chippewa River is a steel stringer/multi-beam or girder carrying Chippewa Road over Chippewa River in Isabella County, Michigan. It was built in 1980, so it is 45 years old, younger 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 502 vehicles a day, projected to reach 612 by 2022. The structure is 216 ft (65.8 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesChippewa Road
CrossesChippewa River
Location0.1 M S NE Cor Sec 11 T14
RouteCounty Highway 0
CountyIsabella County
StateMichigan
Coordinates43.62371, -84.62804
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionMarch 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.8 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length216 ft (65.8 m)
Longest span82 ft (25 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic502 (2002)
Projected traffic612 by 2022
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Chippewa Road over Chippewa River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Chippewa 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 March 2024.

How much traffic does Chippewa Road over Chippewa River carry?

About 502 vehicles per day (2002 count).

How long is Chippewa Road over Chippewa River?

The structure is 216 ft (65.8 m) long with a longest span of 82 ft (25 m) and a deck 32 ft wide.

Who owns Chippewa Road over Chippewa River?

It is owned by the County Highway Agency.