US Bridges

EB I-235 over NE 46 Ave

Fair

Polk County, Iowa · 0.5 Mile S of I-35/80 JCT · Structure no. 000000000043051

Built
1967
58 years old, rebuilt 2006
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
3 main spans
Daily traffic
36,450
2022 count
Owner
State
State Highway Agency

About this bridge

EB I-235 over NE 46 Ave is a prestressed concrete stringer/multi-beam or girder carrying EB I-235 over NE 46 Ave in Polk County, Iowa. It was built in 1967 and reconstructed in 2006, so it is 58 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 6 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 36,450 vehicles a day, roughly 8% of them trucks, projected to reach 36,450 by 2044. The structure is 154 ft (46.9 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEB I-235
CrossesNE 46 Ave
Location0.5 Mile S of I-35/80 JCT
RouteInterstate 235
CountyPolk County
StateIowa
Coordinates41.64388, -93.57555
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.1 US tons
Inventory rating48.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span73 ft (22.3 m)
Deck width60 ft (18.3 m)
Roadway width57 ft (17.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,450 (2022)
Projected traffic36,450 by 2044
Trucks8%
Lanes on structure3
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 EB I-235 over NE 46 Ave built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2006.

What condition is EB I-235 over NE 46 Ave 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 January 2024.

How much traffic does EB I-235 over NE 46 Ave carry?

About 36,450 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is EB I-235 over NE 46 Ave?

The structure is 154 ft (46.9 m) long with a longest span of 73 ft (22.3 m) and a deck 60 ft wide.

Who owns EB I-235 over NE 46 Ave?

It is owned by the State Highway Agency.