US Bridges

180th ST over Little Wapsipinicon Rvr

Good

Howard County, Iowa · 097140101 · Structure no. 000000000181861

Built
2003
22 years old
Condition
Good
inspected April 2024
Type
Culvert
Steel
Length
69 ft
6 main spans
Daily traffic
51
2022 count
Owner
County
County Highway Agency

About this bridge

180th ST over Little Wapsipinicon Rvr is a steel culvert carrying 180th ST over Little Wapsipinicon Rvr in Howard County, Iowa. It was built in 2003, so it is 22 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 51 vehicles a day, projected to reach 51 by 2044. The structure is 69 ft (21 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Carries180th ST
CrossesLittle Wapsipinicon Rvr
Location097140101
RouteCounty Highway 0
StateIowa
Coordinates43.2554, -92.45467
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadUnknown
Structure length69 ft (21 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2022)
Projected traffic51 by 2044
Trucks0%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 180th ST over Little Wapsipinicon Rvr built?

It was built in 2003, making it 22 years old in 2025.

What condition is 180th ST over Little Wapsipinicon Rvr 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 April 2024.

How much traffic does 180th ST over Little Wapsipinicon Rvr carry?

About 51 vehicles per day (2022 count).

How long is 180th ST over Little Wapsipinicon Rvr?

The structure is 69 ft (21 m) long with a longest span of 10 ft (3 m).

Who owns 180th ST over Little Wapsipinicon Rvr?

It is owned by the County Highway Agency.