US Bridges

Wisconsin Ave over I-80

Fair

Scott County, Iowa · 1.4 Mi. W of Jct. Ia 130 · Structure no. 000000000047490

Built
1959
66 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
220 ft
4 main spans
Daily traffic
374
2022 count
Owner
State
State Highway Agency

About this bridge

Wisconsin Ave over I-80 is a prestressed concrete stringer/multi-beam or girder carrying Wisconsin Ave over I-80 in Scott County, Iowa. It was built in 1959, so it is 66 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 374 vehicles a day, projected to reach 374 by 2044. The structure is 220 ft (67.1 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesWisconsin Ave
CrossesI-80
Location1.4 Mi. W of Jct. Ia 130
RouteCity Street 0
CountyScott County
StateIowa
Coordinates41.60137, -90.64646
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating55.3 US tons
Inventory rating16.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length220 ft (67.1 m)
Longest span69 ft (21 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic374 (2022)
Projected traffic374 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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 Wisconsin Ave over I-80 built?

It was built in 1959, making it 66 years old in 2025.

What condition is Wisconsin Ave over I-80 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 March 2024.

How much traffic does Wisconsin Ave over I-80 carry?

About 374 vehicles per day (2022 count).

How long is Wisconsin Ave over I-80?

The structure is 220 ft (67.1 m) long with a longest span of 69 ft (21 m) and a deck 28 ft wide.

Who owns Wisconsin Ave over I-80?

It is owned by the State Highway Agency.