FM over Storm Creek

GoodPosted for load

Carroll County, Iowa · 085343202 · Structure no. 000000000096261

Built: 1984; 41 years old
Condition: Good; inspected October 2023
Type: Slab; Concrete Continuous
Length: 102 ft; 3 main spans
Daily traffic: 1,146; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Storm Creek is a concrete continuous slab carrying FM over Storm Creek in Carroll County, Iowa. It was built in 1984, so it is 41 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 1,146 vehicles a day, roughly 17% of them trucks, projected to reach 1,146 by 2043. The structure is 102 ft (31.1 m) long and 26 ft wide.

Location

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CarriesFM

CrossesStorm Creek

Location085343202

RouteCounty Highway 0

CountyCarroll County

StateIowa

Coordinates42.12673, -94.84184

Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionOctober 2023

Inspection intervalevery 24 months

Operating statusPosted for load restriction

ScourFoundations stable; scour above top of footing

Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is

Deck geometry4: Meets minimum tolerable limits to be left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating39.2 US tons

Inventory rating23.6 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadH 15

Structure length102 ft (31.1 m)

Longest span39 ft (11.9 m)

Deck width26 ft (8 m)

Roadway width24 ft (7.4 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,146 (2022)

Projected traffic1,146 by 2043

Trucks17%

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 proposedRehabilitation because of general structure deterioration or inadequate strength

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Storm Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is FM over Storm 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 October 2023.

How much traffic does FM over Storm Creek carry?

About 1,146 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is FM over Storm Creek?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns FM over Storm Creek?

It is owned by the County Highway Agency.