US Bridges

EB I-235 over 22nd ST

Fair

Polk County, Iowa · 2.1 MI E of W JCT I-35/80 · Structure no. 000000000042200

Built
1968
57 years old, rebuilt 2004
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
183 ft
3 main spans
Daily traffic
48,250
2022 count
Owner
State
State Highway Agency

About this bridge

EB I-235 over 22nd ST is a prestressed concrete stringer/multi-beam or girder carrying EB I-235 over 22nd ST in Polk County, Iowa. It was built in 1968 and reconstructed in 2004, so it is 57 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 48,250 vehicles a day, roughly 7% of them trucks, projected to reach 48,250 by 2044. The structure is 183 ft (55.8 m) long and 55 ft wide.

Location

Open in Google Maps
CarriesEB I-235
Crosses22nd ST
Location2.1 MI E of W JCT I-35/80
RouteInterstate 235
CountyPolk County
StateIowa
Coordinates41.59274, -93.73643
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.2 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span73 ft (22.3 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,250 (2022)
Projected traffic48,250 by 2044
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 22nd ST built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2004.

What condition is EB I-235 over 22nd ST 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 October 2024.

How much traffic does EB I-235 over 22nd ST carry?

About 48,250 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is EB I-235 over 22nd ST?

The structure is 183 ft (55.8 m) long with a longest span of 73 ft (22.3 m) and a deck 55 ft wide.

Who owns EB I-235 over 22nd ST?

It is owned by the State Highway Agency.