US Bridges

FM RD F32 over West Nishnabotna River

Good

Shelby County, Iowa · 080382205 · Structure no. 000000000362640

Built
1985
40 years old
Condition
Good
inspected April 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
167 ft
3 main spans
Daily traffic
319
2022 count
Owner
County
County Highway Agency

About this bridge

FM RD F32 over West Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying FM RD F32 over West Nishnabotna River in Shelby County, Iowa. It was built in 1985, so it is 40 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 319 vehicles a day, roughly 12% of them trucks, projected to reach 319 by 2043. The structure is 167 ft (50.9 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM RD F32
CrossesWest Nishnabotna River
Location080382205
RouteCounty Highway 0
StateIowa
Coordinates41.73224, -95.25985
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 inspectionApril 2022
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.1 US tons
Inventory rating36.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length167 ft (50.9 m)
Longest span59 ft (18 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic319 (2022)
Projected traffic319 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 RD F32 over West Nishnabotna River built?

It was built in 1985, making it 40 years old in 2025.

What condition is FM RD F32 over West Nishnabotna 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 April 2022.

How much traffic does FM RD F32 over West Nishnabotna River carry?

About 319 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is FM RD F32 over West Nishnabotna River?

The structure is 167 ft (50.9 m) long with a longest span of 59 ft (18 m) and a deck 33 ft wide.

Who owns FM RD F32 over West Nishnabotna River?

It is owned by the County Highway Agency.