US Bridges

Eagle over Winnebago River

Good

Worth County, Iowa · 000000000 · Structure no. 000000000004831

Built
2004
21 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete Continuous
Length
125 ft
1 main span
Daily traffic
909
2022 count
Owner
County
County Highway Agency

About this bridge

Eagle over Winnebago River is a concrete continuous slab carrying Eagle over Winnebago River in Worth County, Iowa. It was built in 2004, so it is 21 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 909 vehicles a day, roughly 17% of them trucks, projected to reach 909 by 2043. The structure is 125 ft (38.1 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesEagle
CrossesWinnebago River
Location000000000
RouteCity Street 0
StateIowa
Coordinates43.26284, -93.41824
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.4 US tons
Inventory rating58.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span124 ft (37.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic909 (2022)
Projected traffic909 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Eagle over Winnebago River built?

It was built in 2004, making it 21 years old in 2025.

What condition is Eagle over Winnebago River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Eagle over Winnebago River carry?

About 909 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Eagle over Winnebago River?

The structure is 125 ft (38.1 m) long with a longest span of 124 ft (37.8 m) and a deck 32 ft wide.

Who owns Eagle over Winnebago River?

It is owned by the County Highway Agency.