US Bridges

Marion Ave over North Turkey Creek

Good

Adair County, Iowa · 77313005 · Structure no. 000000000057941

Built
2014
11 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
151 ft
3 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

Marion Ave over North Turkey Creek is a concrete continuous slab carrying Marion Ave over North Turkey Creek in Adair County, Iowa. It was built in 2014, so it is 11 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 35 vehicles a day, projected to reach 35 by 2044. The structure is 151 ft (46.1 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMarion Ave
CrossesNorth Turkey Creek
Location77313005
RouteCounty Highway 0
StateIowa
Coordinates41.4375, -94.47095
Functional classRural Local

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length151 ft (46.1 m)
Longest span59 ft (18 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2044
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Marion Ave over North Turkey Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Marion Ave 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 July 2024.

How much traffic does Marion Ave over North Turkey Creek carry?

About 35 vehicles per day (2022 count).

How long is Marion Ave over North Turkey Creek?

The structure is 151 ft (46.1 m) long with a longest span of 59 ft (18 m) and a deck 27 ft wide.

Who owns Marion Ave over North Turkey Creek?

It is owned by the County Highway Agency.