US Bridges

FM over North Turkey Creek

Good

Adair County, Iowa · 077321402 · Structure no. 000000000058091

Built
1985
40 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

FM over North Turkey Creek is a concrete continuous culvert carrying FM over North Turkey Creek in Adair County, Iowa. It was built in 1985, so it is 40 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.

It carries about 60 vehicles a day, projected to reach 60 by 2043. The structure is 27 ft (8.2 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFM
CrossesNorth Turkey Creek
Location077321402
RouteCounty Highway 0
StateIowa
Coordinates41.46503, -94.50943
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 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 alignment7: Better than present minimum criteria
Operating rating37.7 US tons
Inventory rating22.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width30 ft (9.1 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic60 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over North Turkey Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is FM over North Turkey 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 May 2023.

How much traffic does FM over North Turkey Creek carry?

About 60 vehicles per day (2022 count).

How long is FM over North Turkey Creek?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 30 ft wide.

Who owns FM over North Turkey Creek?

It is owned by the County Highway Agency.