FM over Trout Creek Branch

Good

Winneshiek County, Iowa · 098083305 · Structure no. 000000000347761

Built: 1995; 30 years old
Condition: Good; inspected April 2023
Type: Slab; Concrete Continuous
Length: 91 ft; 3 main spans
Daily traffic: 137; 2022 count
Owner: County; County Highway Agency

About this bridge

FM over Trout Creek Branch is a concrete continuous slab carrying FM over Trout Creek Branch in Winneshiek County, Iowa. It was built in 1995, so it is 30 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 137 vehicles a day, projected to reach 137 by 2043. The structure is 91 ft (27.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFM

CrossesTrout Creek Branch

Location098083305

RouteCounty Highway 0

CountyWinneshiek County

StateIowa

Coordinates43.25904, -91.79611

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	8 Very Good	No problems noted.
Superstructure	8 Very Good	No problems noted.
Substructure	8 Very Good	No problems noted.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionApril 2023

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation8: Equal to present desirable criteria

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment7: Better than present minimum criteria

Operating rating83.3 US tons

Inventory rating49.8 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length91 ft (27.7 m)

Longest span34 ft (10.4 m)

Deck width26 ft (7.8 m)

Roadway width25 ft (7.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic137 (2022)

Projected traffic137 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.7 mi (6 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 Trout Creek Branch built?

It was built in 1995, making it 30 years old in 2025.

What condition is FM over Trout Creek Branch 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 April 2023.

How much traffic does FM over Trout Creek Branch carry?

About 137 vehicles per day (2022 count).

How long is FM over Trout Creek Branch?

The structure is 91 ft (27.7 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns FM over Trout Creek Branch?

It is owned by the County Highway Agency.