US Bridges

FM over West Creek

PoorPosted for load

Clarke County, Iowa · 073251604 · Structure no. 000000000115150

Built
1958
67 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
150 ft
3 main spans
Daily traffic
459
2022 count
Owner
County
County Highway Agency

About this bridge

FM over West Creek is a steel continuous stringer/multi-beam or girder carrying FM over West Creek in Clarke County, Iowa. It was built in 1958, so it is 67 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 459 vehicles a day, roughly 10% of them trucks, projected to reach 459 by 2043. The structure is 150 ft (45.7 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFM
CrossesWest Creek
Location073251604
RouteCounty Highway 0
StateIowa
Coordinates41.12113, -93.75037
Functional classRural Major Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.7 US tons
Inventory rating20.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length150 ft (45.7 m)
Longest span59 ft (18 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic459 (2022)
Projected traffic459 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$1.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over West Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM over West 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 FM over West Creek carry?

About 459 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is FM over West Creek?

The structure is 150 ft (45.7 m) long with a longest span of 59 ft (18 m) and a deck 26 ft wide.

Who owns FM over West Creek?

It is owned by the County Highway Agency.