US Bridges

EB I-80 over E.Br.W.Nishnabotna River

Fair

Pottawattamie County, Iowa · 1.2 Mi. E of Jct. US 59 · Structure no. 000000000045570

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
3 main spans
Daily traffic
11,900
2022 count
Owner
State
State Highway Agency

About this bridge

EB I-80 over E.Br.W.Nishnabotna River is a steel continuous stringer/multi-beam or girder carrying EB I-80 over E.Br.W.Nishnabotna River in Pottawattamie County, Iowa. It was built in 1965, so it is 60 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 11,900 vehicles a day, roughly 41% of them trucks, projected to reach 11,900 by 2042. The structure is 244 ft (74.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEB I-80
CrossesE.Br.W.Nishnabotna River
Location1.2 Mi. E of Jct. US 59
RouteInterstate 80
CountyPottawattamie County
StateIowa
Coordinates41.49798, -95.31311
Functional classRural Principal Arterial - Interstate

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.5 US tons
Inventory rating32.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length244 ft (74.4 m)
Longest span94 ft (28.7 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,900 (2022)
Projected traffic11,900 by 2042
Trucks41%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 EB I-80 over E.Br.W.Nishnabotna River built?

It was built in 1965, making it 60 years old in 2025.

What condition is EB I-80 over E.Br.W.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 April 2024.

How much traffic does EB I-80 over E.Br.W.Nishnabotna River carry?

About 11,900 vehicles per day (2022 count), of which roughly 41% are trucks.

How long is EB I-80 over E.Br.W.Nishnabotna River?

The structure is 244 ft (74.4 m) long with a longest span of 94 ft (28.7 m) and a deck 42 ft wide.

Who owns EB I-80 over E.Br.W.Nishnabotna River?

It is owned by the State Highway Agency.