US Bridges

180th ST over Westfield Creek

PoorPosted for load

Plymouth County, Iowa · 092481501 · Structure no. 000000000275630

Built
1948
77 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
37 ft
2 main spans
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

180th ST over Westfield Creek is a wood or timber stringer/multi-beam or girder carrying 180th ST over Westfield Creek in Plymouth County, Iowa. It was built in 1948, so it is 77 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2043. The structure is 37 ft (11.3 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries180th ST
CrossesWestfield Creek
Location092481501
RouteCounty Highway 0
CountyPlymouth County
StateIowa
Coordinates42.79356, -96.50109
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span19 ft (5.8 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$215,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 180th ST over Westfield Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is 180th ST over Westfield Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does 180th ST over Westfield Creek carry?

About 20 vehicles per day (2022 count).

How long is 180th ST over Westfield Creek?

The structure is 37 ft (11.3 m) long with a longest span of 19 ft (5.8 m) and a deck 20 ft wide.

Who owns 180th ST over Westfield Creek?

It is owned by the County Highway Agency.