US Bridges

FM over Middle Raccoon River

Good

Carroll County, Iowa · 084342802 · Structure no. 000000000095331

Built
2005
20 years old
Condition
Good
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
151 ft
3 main spans
Daily traffic
1,623
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Middle Raccoon River is a prestressed concrete continuous stringer/multi-beam or girder carrying FM over Middle Raccoon River in Carroll County, Iowa. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,623 vehicles a day, roughly 10% of them trucks, projected to reach 1,623 by 2043. The structure is 151 ft (46 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesMiddle Raccoon River
Location084342802
RouteCounty Highway 0
StateIowa
Coordinates42.05239, -94.82281
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating82.1 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span56 ft (17.1 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,623 (2022)
Projected traffic1,623 by 2043
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Middle Raccoon River built?

It was built in 2005, making it 20 years old in 2025.

What condition is FM over Middle Raccoon 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 August 2022.

How much traffic does FM over Middle Raccoon River carry?

About 1,623 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is FM over Middle Raccoon River?

The structure is 151 ft (46 m) long with a longest span of 56 ft (17.1 m) and a deck 32 ft wide.

Who owns FM over Middle Raccoon River?

It is owned by the County Highway Agency.