US Bridges

FM over Racoon River

Good

Calhoun County, Iowa · 086342203 · Structure no. 000000000090801

Built
1987
38 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
310 ft
4 main spans
Daily traffic
110
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Racoon River is a prestressed concrete stringer/multi-beam or girder carrying FM over Racoon River in Calhoun County, Iowa. It was built in 1987, so it is 38 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 110 vehicles a day, projected to reach 110 by 2043. The structure is 310 ft (94.5 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesRacoon River
Location086342203
RouteCounty Highway 0
StateIowa
Coordinates42.25011, -94.80227
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length310 ft (94.5 m)
Longest span95 ft (29 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2022)
Projected traffic110 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$60,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Racoon River built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM over Racoon River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does FM over Racoon River carry?

About 110 vehicles per day (2022 count).

How long is FM over Racoon River?

The structure is 310 ft (94.5 m) long with a longest span of 95 ft (29 m) and a deck 32 ft wide.

Who owns FM over Racoon River?

It is owned by the County Highway Agency.