US Bridges

Eagle Ave over I-80

Fair

Johnson County, Iowa · 6.1 Mi. W of Jct. I-380 · Structure no. 000000000031950

Built
1963
62 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
226 ft
4 main spans
Daily traffic
140
2022 count
Owner
State
State Highway Agency

About this bridge

Eagle Ave over I-80 is a prestressed concrete stringer/multi-beam or girder carrying Eagle Ave over I-80 in Johnson County, Iowa. It was built in 1963, so it is 62 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 140 vehicles a day, roughly 16% of them trucks, projected to reach 140 by 2044. The structure is 226 ft (68.9 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesEagle Ave
CrossesI-80
Location6.1 Mi. W of Jct. I-380
RouteCounty Highway 0
CountyJohnson County
StateIowa
Coordinates41.69157, -91.75504
Functional classRural Minor Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 alignment7: Better than present minimum criteria
Operating rating53.2 US tons
Inventory rating16 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length226 ft (68.9 m)
Longest span65 ft (19.8 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2022)
Projected traffic140 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 Eagle Ave over I-80 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Eagle 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 May 2024.

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

About 140 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Eagle Ave over I-80?

The structure is 226 ft (68.9 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.

Who owns Eagle Ave over I-80?

It is owned by the State Highway Agency.