180th Ave over Creek

Fair

Winneshiek County, Iowa · .25 MI North of 107th St. · Structure no. 000000000346261

Built: 2012; 13 years old
Condition: Fair; inspected November 2023
Type: Culvert; Concrete Continuous
Length: 24 ft; 2 main spans
Daily traffic: 70; 2022 count
Owner: County; County Highway Agency

About this bridge

180th Ave over Creek is a concrete continuous culvert carrying 180th Ave over Creek in Winneshiek County, Iowa. It was built in 2012, so it is 13 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 70 vehicles a day, projected to reach 70 by 2043. The structure is 24 ft (7.3 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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Carries180th Ave

CrossesCreek

Location.25 MI North of 107th St.

RouteCounty Highway 0

CountyWinneshiek County

StateIowa

Coordinates43.09694, -91.7505

Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionNovember 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating74.4 US tons

Inventory rating44.5 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadHS 20

Structure length24 ft (7.3 m)

Longest span12 ft (3.7 m)

Deck width42 ft (12.8 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)

Projected traffic70 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed5 mi (8 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—

NavigationNot applicable (no waterway)

Frequently asked questions

When was 180th Ave over Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is 180th Ave over Creek 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 November 2023.

How much traffic does 180th Ave over Creek carry?

About 70 vehicles per day (2022 count).

How long is 180th Ave over Creek?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m) and a deck 42 ft wide.

Who owns 180th Ave over Creek?

It is owned by the County Highway Agency.