FM over Brown Creek

Fair

Emmet County, Iowa · 100332901 · Structure no. 000000000149151

Built: 1981; 44 years old
Condition: Fair; inspected August 2024
Type: Slab; Concrete Continuous
Length: 78 ft; 3 main spans
Daily traffic: 409; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Brown Creek is a concrete continuous slab carrying FM over Brown Creek in Emmet County, Iowa. It was built in 1981, so it is 44 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 409 vehicles a day, roughly 26% of them trucks, projected to reach 409 by 2044. The structure is 78 ft (23.8 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesFM

CrossesBrown Creek

Location100332901

RouteCounty Highway 0

CountyEmmet County

StateIowa

Coordinates43.45969, -94.76451

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.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionAugust 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating58.5 US tons

Inventory rating34.4 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 width33 ft (10.1 m)

Roadway width30 ft (9.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic409 (2022)

Projected traffic409 by 2044

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Brown Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is FM over Brown 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 August 2024.

How much traffic does FM over Brown Creek carry?

About 409 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is FM over Brown Creek?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 33 ft wide.

Who owns FM over Brown Creek?

It is owned by the County Highway Agency.