US Bridges

EB I-235 over Guthrie Ave

Fair

Polk County, Iowa · 1.2 Miles E of JCT Ia 163 · Structure no. 000000000043001

Built
2006
19 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
178 ft
3 main spans
Daily traffic
33,900
2022 count
Owner
State
State Highway Agency

About this bridge

EB I-235 over Guthrie Ave is a prestressed concrete stringer/multi-beam or girder carrying EB I-235 over Guthrie Ave in Polk County, Iowa. It was built in 2006, so it is 19 years old, younger 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 33,900 vehicles a day, roughly 8% of them trucks, projected to reach 33,900 by 2043. The structure is 178 ft (54.3 m) long and 66 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEB I-235
CrossesGuthrie Ave
Location1.2 Miles E of JCT Ia 163
RouteInterstate 235
CountyPolk County
StateIowa
Coordinates41.61469, -93.57748
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2023
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 rating99.8 US tons
Inventory rating82.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length178 ft (54.3 m)
Longest span106 ft (32.3 m)
Deck width66 ft (20 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,900 (2022)
Projected traffic33,900 by 2043
Trucks8%
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 Guthrie Ave built?

It was built in 2006, making it 19 years old in 2025.

What condition is EB I-235 over Guthrie 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 December 2023.

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

About 33,900 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is EB I-235 over Guthrie Ave?

The structure is 178 ft (54.3 m) long with a longest span of 106 ft (32.3 m) and a deck 66 ft wide.

Who owns EB I-235 over Guthrie Ave?

It is owned by the State Highway Agency.