US Bridges

FM over West Creek

Good

Warren County, Iowa · 074242705 · Structure no. 000000000333221

Built
1987
38 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
278 ft
3 main spans
Daily traffic
499
2022 count
Owner
County
County Highway Agency

About this bridge

FM over West Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over West Creek in Warren County, Iowa. It was built in 1987, so it is 38 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 499 vehicles a day, roughly 19% of them trucks, projected to reach 499 by 2043. The structure is 278 ft (84.7 m) long and 32 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

CarriesFM
CrossesWest Creek
Location074242705
RouteCounty Highway 0
StateIowa
Coordinates41.18709, -93.61352
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.2 US tons
Inventory rating46.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length278 ft (84.7 m)
Longest span97 ft (29.6 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic499 (2022)
Projected traffic499 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over West Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM over West Creek 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 October 2023.

How much traffic does FM over West Creek carry?

About 499 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FM over West Creek?

The structure is 278 ft (84.7 m) long with a longest span of 97 ft (29.6 m) and a deck 32 ft wide.

Who owns FM over West Creek?

It is owned by the County Highway Agency.