US Bridges

FM over Small Un-Named Creek

Fair

O'Brien County, Iowa · 095410302 · Structure no. 000000000363580

Built
1992
33 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
917
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Small Un-Named Creek is a concrete continuous culvert carrying FM over Small Un-Named Creek in O'Brien County, Iowa. It was built in 1992, so it is 33 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 917 vehicles a day, roughly 23% of them trucks, projected to reach 917 by 2043. The structure is 26 ft (7.9 m) long.

CarriesFM
CrossesSmall Un-Named Creek
Location095410302
RouteCounty Highway 0
StateIowa
Coordinates43.07914, -95.68359
Functional classRural Major 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating22.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 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 traffic917 (2022)
Projected traffic917 by 2043
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$50,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Small Un-Named Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is FM over Small Un-Named 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 July 2023.

How much traffic does FM over Small Un-Named Creek carry?

About 917 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is FM over Small Un-Named Creek?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m).

Who owns FM over Small Un-Named Creek?

It is owned by the County Highway Agency.