US Bridges

FM over Small Creek

Good

Sioux County, Iowa · 097472902 · Structure no. 000000000313305

Built
1976
49 years old
Condition
Good
inspected November 2022
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
718
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Small Creek is a concrete continuous slab carrying FM over Small Creek in Sioux County, Iowa. It was built in 1976, so it is 49 years old, older 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 718 vehicles a day, roughly 36% of them trucks, projected to reach 718 by 2042. The structure is 78 ft (23.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesSmall Creek
Location097472902
RouteCounty Highway 0
StateIowa
Coordinates43.19533, -96.43242
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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 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 alignment8: Equal to present desirable criteria
Operating rating57.8 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length78 ft (23.8 m)
Longest span29 ft (8.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic718 (2022)
Projected traffic718 by 2042
Trucks36%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Small Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is FM over Small 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 November 2022.

How much traffic does FM over Small Creek carry?

About 718 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is FM over Small Creek?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 32 ft wide.

Who owns FM over Small Creek?

It is owned by the County Highway Agency.