US Bridges

Ia 2 over East Nishnabotna River

Fair

Fremont County, Iowa · 3.3 Mi. W of Jct. 59 · Structure no. 000000000602890

Built
1975
50 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
609 ft
7 main spans
Daily traffic
1,910
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 2 over East Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying Ia 2 over East Nishnabotna River in Fremont County, Iowa. It was built in 1975, so it is 50 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 1,910 vehicles a day, roughly 12% of them trucks, projected to reach 1,910 by 2044. The structure is 609 ft (185.6 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesIa 2
CrossesEast Nishnabotna River
Location3.3 Mi. W of Jct. 59
RouteState Highway 2
CountyFremont County
StateIowa
Coordinates40.74676, -95.44698
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.1 US tons
Inventory rating36.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length609 ft (185.6 m)
Longest span96 ft (29.3 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,910 (2022)
Projected traffic1,910 by 2044
Trucks12%
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

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 2 over East Nishnabotna River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Ia 2 over East 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 February 2024.

How much traffic does Ia 2 over East Nishnabotna River carry?

About 1,910 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Ia 2 over East Nishnabotna River?

The structure is 609 ft (185.6 m) long with a longest span of 96 ft (29.3 m) and a deck 47 ft wide.

Who owns Ia 2 over East Nishnabotna River?

It is owned by the State Highway Agency.