US Bridges

I 80 EB over I 235

Fair

Polk County, Iowa · 0.2 Mile E of W JCT I-80 · Structure no. 000000000042160

Built
1966
59 years old, rebuilt 1984
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
222 ft
4 main spans
Daily traffic
15,600
2023 count
Owner
State
State Highway Agency

About this bridge

I 80 EB over I 235 is a steel continuous stringer/multi-beam or girder carrying I 80 EB over I 235 in Polk County, Iowa. It was built in 1966 and reconstructed in 1984, so it is 59 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 15,600 vehicles a day, roughly 22% of them trucks, projected to reach 15,600 by 2043. The structure is 222 ft (67.7 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 80 EB
CrossesI 235
Location0.2 Mile E of W JCT I-80
RouteInterstate 80
CountyPolk County
StateIowa
Coordinates41.59194, -93.77327
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.5 US tons
Inventory rating42.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length222 ft (67.7 m)
Longest span63 ft (19.2 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,600 (2023)
Projected traffic15,600 by 2043
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 80 EB over I 235 built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1984.

What condition is I 80 EB over I 235 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 June 2024.

How much traffic does I 80 EB over I 235 carry?

About 15,600 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I 80 EB over I 235?

The structure is 222 ft (67.7 m) long with a longest span of 63 ft (19.2 m) and a deck 44 ft wide.

Who owns I 80 EB over I 235?

It is owned by the State Highway Agency.