US Bridges

FM over W Fork Nodaway River

Good

Adair County, Iowa · 074330401 · Structure no. 000000000055311

Built
2009
16 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
179 ft
3 main spans
Daily traffic
71
2022 count
Owner
County
County Highway Agency

About this bridge

FM over W Fork Nodaway River is a prestressed concrete stringer/multi-beam or girder carrying FM over W Fork Nodaway River in Adair County, Iowa. It was built in 2009, so it is 16 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 71 vehicles a day, projected to reach 71 by 2042. The structure is 179 ft (54.6 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesW Fork Nodaway River
Location074330401
RouteCounty Highway 0
StateIowa
Coordinates41.24421, -94.65739
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating44.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length179 ft (54.6 m)
Longest span64 ft (19.5 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic71 (2022)
Projected traffic71 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over W Fork Nodaway River built?

It was built in 2009, making it 16 years old in 2025.

What condition is FM over W Fork Nodaway 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 2024.

How much traffic does FM over W Fork Nodaway River carry?

About 71 vehicles per day (2022 count).

How long is FM over W Fork Nodaway River?

The structure is 179 ft (54.6 m) long with a longest span of 64 ft (19.5 m) and a deck 27 ft wide.

Who owns FM over W Fork Nodaway River?

It is owned by the County Highway Agency.