US Bridges

Ia 44 over West Nishnabotna River

Fair

Shelby County, Iowa · 5.8 E of Jct. U.S. 59 · Structure no. 000000000048021

Built
1984
41 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
281 ft
3 main spans
Daily traffic
2,690
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 44 over West Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying Ia 44 over West Nishnabotna River in Shelby County, Iowa. It was built in 1984, so it is 41 years old, younger 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 2,690 vehicles a day, roughly 8% of them trucks, projected to reach 2,690 by 2044. The structure is 281 ft (85.6 m) long and 39 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesIa 44
CrossesWest Nishnabotna River
Location5.8 E of Jct. U.S. 59
RouteState Highway 44
CountyShelby County
StateIowa
Coordinates41.64542, -95.22892
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.1 US tons
Inventory rating40.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length281 ft (85.6 m)
Longest span97 ft (29.6 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,690 (2022)
Projected traffic2,690 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 44 over West Nishnabotna River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Ia 44 over West 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 2024.

How much traffic does Ia 44 over West Nishnabotna River carry?

About 2,690 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Ia 44 over West Nishnabotna River?

The structure is 281 ft (85.6 m) long with a longest span of 97 ft (29.6 m) and a deck 39 ft wide.

Who owns Ia 44 over West Nishnabotna River?

It is owned by the State Highway Agency.