US Bridges

State Road over Grand River

Fair

Clinton County, Michigan · 0.1 MI E of Grange RD · Structure no. 000000000001895

Built
1979
46 years old, rebuilt 2012
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
248 ft
4 main spans
Daily traffic
875
2012 count
Owner
County
County Highway Agency

About this bridge

State Road over Grand River is a prestressed concrete box beam or girders - multiple carrying State Road over Grand River in Clinton County, Michigan. It was built in 1979 and reconstructed in 2012, so it is 46 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 875 vehicles a day, roughly 2% of them trucks, projected to reach 1,490 by 2032. The structure is 248 ft (75.6 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesState Road
CrossesGrand River
Location0.1 MI E of Grange RD
RouteCounty Highway 0
CountyClinton County
StateMichigan
Coordinates42.78496, -84.79859
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.2 US tons
Inventory rating48.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadGreater than HL 93
Structure length248 ft (75.6 m)
Longest span62 ft (18.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic875 (2012)
Projected traffic1,490 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was State Road over Grand River built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2012.

What condition is State Road over Grand 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 October 2024.

How much traffic does State Road over Grand River carry?

About 875 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is State Road over Grand River?

The structure is 248 ft (75.6 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.

Who owns State Road over Grand River?

It is owned by the County Highway Agency.