US Bridges

Ia 24 over Turkey River

Good

Winneshiek County, Iowa · 0.5 Mi. E of Jct. SR B32 · Structure no. 000000000052671

Built
2006
19 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
314 ft
3 main spans
Daily traffic
2,860
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 24 over Turkey River is a prestressed concrete stringer/multi-beam or girder carrying Ia 24 over Turkey River in Winneshiek County, Iowa. It was built in 2006, so it is 19 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 2,860 vehicles a day, roughly 11% of them trucks, projected to reach 2,860 by 2044. The structure is 314 ft (95.7 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIa 24
CrossesTurkey River
Location0.5 Mi. E of Jct. SR B32
RouteState Highway 24
StateIowa
Coordinates43.14677, -91.93087
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.8 US tons
Inventory rating62.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length314 ft (95.7 m)
Longest span107 ft (32.6 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,860 (2022)
Projected traffic2,860 by 2044
Trucks11%
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

OwnerState Highway Agency
Maintained byState 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 Ia 24 over Turkey River built?

It was built in 2006, making it 19 years old in 2025.

What condition is Ia 24 over Turkey River 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 October 2024.

How much traffic does Ia 24 over Turkey River carry?

About 2,860 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 24 over Turkey River?

The structure is 314 ft (95.7 m) long with a longest span of 107 ft (32.6 m) and a deck 47 ft wide.

Who owns Ia 24 over Turkey River?

It is owned by the State Highway Agency.