US Bridges

Ia 92 over W Fork of Nodaway River

Fair

Adair County, Iowa · 1.6 Mi. E of SR N-51 · Structure no. 000000000013010

Built
1950
75 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
183 ft
3 main spans
Daily traffic
1,090
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 92 over W Fork of Nodaway River is a steel continuous stringer/multi-beam or girder carrying Ia 92 over W Fork of Nodaway River in Adair County, Iowa. It was built in 1950, so it is 75 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 5 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 1,090 vehicles a day, roughly 18% of them trucks, projected to reach 1,090 by 2044. The structure is 183 ft (55.8 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesIa 92
CrossesW Fork of Nodaway River
Location1.6 Mi. E of SR N-51
RouteState Highway 92
CountyAdair County
StateIowa
Coordinates41.25883, -94.63879
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length183 ft (55.8 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,090 (2022)
Projected traffic1,090 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ia 92 over W Fork of Nodaway River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Ia 92 over W Fork of Nodaway 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 2024.

How much traffic does Ia 92 over W Fork of Nodaway River carry?

About 1,090 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Ia 92 over W Fork of Nodaway River?

The structure is 183 ft (55.8 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns Ia 92 over W Fork of Nodaway River?

It is owned by the State Highway Agency.