US Bridges

FM over Turkey River

Fair

Winneshiek County, Iowa · 097091808 · Structure no. 000000000347020

Built
1955
70 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
658
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Turkey River is a concrete continuous culvert carrying FM over Turkey River in Winneshiek County, Iowa. It was built in 1955, so it is 70 years old, older 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 5 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 658 vehicles a day, projected to reach 658 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM
CrossesTurkey River
Location097091808
RouteCounty Highway 0
CountyWinneshiek County
StateIowa
Coordinates43.21841, -91.95062
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.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic658 (2022)
Projected traffic658 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Turkey River built?

It was built in 1955, making it 70 years old in 2025.

What condition is FM over Turkey River 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 April 2023.

How much traffic does FM over Turkey River carry?

About 658 vehicles per day (2022 count).

How long is FM over Turkey River?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns FM over Turkey River?

It is owned by the County Highway Agency.