US Bridges

180th ST over Wapsipinicon River

Good

Howard County, Iowa · 097140601 · Structure no. 000000000366535

Built
2019
6 years old
Condition
Good
inspected March 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
205 ft
3 main spans
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

180th ST over Wapsipinicon River is a prestressed concrete stringer/multi-beam or girder carrying 180th ST over Wapsipinicon River in Howard County, Iowa. It was built in 2019, so it is 6 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 21 vehicles a day, projected to reach 21 by 2043. The structure is 205 ft (62.5 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries180th ST
CrossesWapsipinicon River
Location097140601
RouteCounty Highway 0
CountyHoward County
StateIowa
Coordinates43.25543, -92.5373
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length205 ft (62.5 m)
Longest span73 ft (22.3 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 180th ST over Wapsipinicon River built?

It was built in 2019, making it 6 years old in 2025.

What condition is 180th ST over Wapsipinicon 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 March 2022.

How much traffic does 180th ST over Wapsipinicon River carry?

About 21 vehicles per day (2022 count).

How long is 180th ST over Wapsipinicon River?

The structure is 205 ft (62.5 m) long with a longest span of 73 ft (22.3 m) and a deck 27 ft wide.

Who owns 180th ST over Wapsipinicon River?

It is owned by the County Highway Agency.