US Bridges

FM over Trout Creek

Good

Winneshiek County, Iowa · 098083305 · Structure no. 000000000347751

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

About this bridge

FM over Trout Creek is a concrete continuous slab carrying FM over Trout Creek 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 103 ft (31.4 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesTrout Creek
Location098083305
RouteCounty Highway 0
StateIowa
Coordinates43.25905, -91.79926
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.

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 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 alignment6: Equal to present minimum criteria
Operating rating88.2 US tons
Inventory rating52.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span39 ft (11.9 m)
Deck width25 ft (7.7 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 built?

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

What condition is FM over Trout 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 April 2023.

How much traffic does FM over Trout Creek carry?

About 137 vehicles per day (2022 count).

How long is FM over Trout Creek?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 25 ft wide.

Who owns FM over Trout Creek?

It is owned by the County Highway Agency.