US Bridges

175th ST over Br Little Wapsipioicon

Fair

Howard County, Iowa · 098143507 · Structure no. 000000000182781

Built
2003
22 years old
Condition
Fair
inspected April 2024
Type
Culvert
Steel
Length
34 ft
6 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

175th ST over Br Little Wapsipioicon is a steel culvert carrying 175th ST over Br Little Wapsipioicon 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 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
Carries175th ST
CrossesBr Little Wapsipioicon
Location098143507
RouteCounty Highway 0
CountyHoward County
StateIowa
Coordinates43.26259, -92.45835
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.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span4 ft (1.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 175th ST over Br Little Wapsipioicon built?

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

What condition is 175th ST over Br Little Wapsipioicon 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 April 2024.

How much traffic does 175th ST over Br Little Wapsipioicon carry?

About 11 vehicles per day (2022 count).

How long is 175th ST over Br Little Wapsipioicon?

The structure is 34 ft (10.4 m) long with a longest span of 4 ft (1.2 m).

Who owns 175th ST over Br Little Wapsipioicon?

It is owned by the County Highway Agency.