US Bridges

FM over Little Creek

Fair

Mahaska County, Iowa · 077172216 · Structure no. 000000000238480

Built
1967
58 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
1,130
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Little Creek is a concrete continuous culvert carrying FM over Little Creek in Mahaska County, Iowa. It was built in 1967, so it is 58 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 5 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 1,130 vehicles a day, roughly 14% of them trucks, projected to reach 1,130 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM
CrossesLittle Creek
Location077172216
RouteCounty Highway 0
CountyMahaska County
StateIowa
Coordinates41.45496, -92.79994
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.6 US tons
Inventory rating36.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,130 (2022)
Projected traffic1,130 by 2043
Trucks14%
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Little Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is FM over Little 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 December 2023.

How much traffic does FM over Little Creek carry?

About 1,130 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is FM over Little Creek?

The structure is 29 ft (8.8 m) long with a longest span of 10 ft (3 m).

Who owns FM over Little Creek?

It is owned by the County Highway Agency.