US Bridges

FM over Soldier River

Good

Crawford County, Iowa · 085410102 · Structure no. 000000000130791

Built
1971
54 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
178 ft
3 main spans
Daily traffic
219
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Soldier River is a prestressed concrete stringer/multi-beam or girder carrying FM over Soldier River in Crawford County, Iowa. It was built in 1971, so it is 54 years old, older 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 219 vehicles a day, roughly 11% of them trucks, projected to reach 219 by 2044. The structure is 178 ft (54.3 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesFM
CrossesSoldier River
Location085410102
RouteCounty Highway 0
StateIowa
Coordinates42.20176, -95.57457
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating73.6 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length178 ft (54.3 m)
Longest span65 ft (19.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic219 (2022)
Projected traffic219 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Soldier River built?

It was built in 1971, making it 54 years old in 2025.

What condition is FM over Soldier 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 May 2024.

How much traffic does FM over Soldier River carry?

About 219 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is FM over Soldier River?

The structure is 178 ft (54.3 m) long with a longest span of 65 ft (19.8 m) and a deck 32 ft wide.

Who owns FM over Soldier River?

It is owned by the County Highway Agency.