US Bridges

FM over Dry Creek

Good

Sioux County, Iowa · 096462101 · Structure no. 000000000311961

Built
2004
21 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
115 ft
3 main spans
Daily traffic
857
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Dry Creek is a concrete slab carrying FM over Dry Creek in Sioux County, Iowa. It was built in 2004, so it is 21 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 857 vehicles a day, roughly 26% of them trucks, projected to reach 857 by 2043. The structure is 115 ft (35.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesDry Creek
Location096462101
RouteCounty Highway 0
StateIowa
Coordinates43.12769, -96.28739
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.9 US tons
Inventory rating55.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span44 ft (13.4 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic857 (2022)
Projected traffic857 by 2043
Trucks26%
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 Dry Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is FM over Dry 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 January 2023.

How much traffic does FM over Dry Creek carry?

About 857 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is FM over Dry Creek?

The structure is 115 ft (35.1 m) long with a longest span of 44 ft (13.4 m) and a deck 33 ft wide.

Who owns FM over Dry Creek?

It is owned by the County Highway Agency.