US Bridges

EB I-235 over I 35 West JCT

Fair

Polk County, Iowa · At West JCT I-35 & I-80 · Structure no. 000000000041910

Built
1966
59 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
258 ft
4 main spans
Daily traffic
22,500
2022 count
Owner
State
State Highway Agency

About this bridge

EB I-235 over I 35 West JCT is a prestressed concrete stringer/multi-beam or girder carrying EB I-235 over I 35 West JCT in Polk County, Iowa. It was built in 1966, 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 22,500 vehicles a day, roughly 7% of them trucks, projected to reach 22,500 by 2043. The structure is 258 ft (78.6 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEB I-235
CrossesI 35 West JCT
LocationAt West JCT I-35 & I-80
RouteInterstate 235
CountyPolk County
StateIowa
Coordinates41.5921, -93.77777
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.1 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length258 ft (78.6 m)
Longest span81 ft (24.7 m)
Deck width50 ft (15.3 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,500 (2022)
Projected traffic22,500 by 2043
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 I 35 West JCT built?

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

What condition is EB I-235 over I 35 West JCT 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 December 2023.

How much traffic does EB I-235 over I 35 West JCT carry?

About 22,500 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is EB I-235 over I 35 West JCT?

The structure is 258 ft (78.6 m) long with a longest span of 81 ft (24.7 m) and a deck 50 ft wide.

Who owns EB I-235 over I 35 West JCT?

It is owned by the State Highway Agency.