US Bridges

FM over W Fk W Nishnabotna River

Fair

Crawford County, Iowa · 082381202 · Structure no. 000000000126420

Built
1963
62 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
816
2022 count
Owner
County
County Highway Agency

About this bridge

FM over W Fk W Nishnabotna River is a concrete continuous slab carrying FM over W Fk W Nishnabotna River in Crawford County, Iowa. It was built in 1963, so it is 62 years old, older than the Iowa average of 45.5 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 816 vehicles a day, projected to reach 816 by 2043. The structure is 126 ft (38.4 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM
CrossesW Fk W Nishnabotna River
Location082381202
RouteCounty Highway 0
CountyCrawford County
StateIowa
Coordinates41.92732, -95.22788
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length126 ft (38.4 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic816 (2022)
Projected traffic816 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over W Fk W Nishnabotna River built?

It was built in 1963, making it 62 years old in 2025.

What condition is FM over W Fk W Nishnabotna 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 May 2023.

How much traffic does FM over W Fk W Nishnabotna River carry?

About 816 vehicles per day (2022 count).

How long is FM over W Fk W Nishnabotna River?

The structure is 126 ft (38.4 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns FM over W Fk W Nishnabotna River?

It is owned by the County Highway Agency.