FM over Wolf Creek

Fair

Union County, Iowa · 073292403 · Structure no. 000000000326611

Built: 2001; 24 years old
Condition: Fair; inspected October 2023
Type: Slab; Wood or Timber
Length: 27 ft; 1 main span
Daily traffic: 100; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Wolf Creek is a wood or timber slab carrying FM over Wolf Creek in Union County, Iowa. It was built in 2001, so it is 24 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 100 vehicles a day, projected to reach 100 by 2043. The structure is 27 ft (8.2 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFM

CrossesWolf Creek

Location073292403

RouteCounty Highway 0

CountyUnion County

StateIowa

Coordinates41.10149, -94.13913

Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionOctober 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating43.9 US tons

Inventory rating35.5 US tons

Structure

Structure typeSlab

MaterialWood or Timber

DeckConcrete, cast-in-place

Main spans1

Design loadUnknown

Structure length27 ft (8.2 m)

Longest span26 ft (7.9 m)

Deck width25 ft (7.6 m)

Roadway width24 ft (7.4 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)

Projected traffic100 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 statusPossibly eligible for the National Register; requires further investigation

Work proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Wolf Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is FM over Wolf Creek 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 October 2023.

How much traffic does FM over Wolf Creek carry?

About 100 vehicles per day (2022 count).

How long is FM over Wolf Creek?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.

Who owns FM over Wolf Creek?

It is owned by the County Highway Agency.