US Bridges

Fairplains Street over Flat River

Fair

Montcalm County, Michigan · In Greenville · Structure no. 000000000007530

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
120 ft
2 main spans
Daily traffic
5,032
1997 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fairplains Street over Flat River is a prestressed concrete box beam or girders - single or spread carrying Fairplains Street over Flat River in Montcalm County, Michigan. It was built in 1972, so it is 53 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 5,032 vehicles a day, roughly 10% of them trucks, projected to reach 5,250 by 2010. The structure is 120 ft (36.5 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFairplains Street
CrossesFlat River
LocationIn Greenville
RouteCity Street 2041
Coordinates43.17021, -85.25081
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length120 ft (36.5 m)
Longest span60 ft (18.2 m)
Deck width48 ft (14.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,032 (1997)
Projected traffic5,250 by 2010
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Fairplains Street over Flat River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Fairplains Street over Flat 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 April 2024.

How much traffic does Fairplains Street over Flat River carry?

About 5,032 vehicles per day (1997 count), of which roughly 10% are trucks.

How long is Fairplains Street over Flat River?

The structure is 120 ft (36.5 m) long with a longest span of 60 ft (18.2 m) and a deck 48 ft wide.

Who owns Fairplains Street over Flat River?

It is owned by the City or Municipal Highway Agency.