US Bridges

FM over Small Creek

Fair

Guthrie County, Iowa · 080301801 · Structure no. 000000000168780

Built
1958
67 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
170
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Small Creek is a concrete continuous culvert carrying FM over Small Creek in Guthrie 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 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 170 vehicles a day, projected to reach 170 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFM
CrossesSmall Creek
Location080301801
RouteCounty Highway 0
CountyGuthrie County
StateIowa
Coordinates41.74547, -94.39452
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.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating87.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2022)
Projected traffic170 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Small Creek built?

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

What condition is FM over Small 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 November 2023.

How much traffic does FM over Small Creek carry?

About 170 vehicles per day (2022 count).

How long is FM over Small Creek?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m).

Who owns FM over Small Creek?

It is owned by the County Highway Agency.