US Bridges

Ia 24 over Turkey River Overflow

Good

Winneshiek County, Iowa · 0.7 Mi. E of Jct. SR B32 · Structure no. 000000000052681

Built
2006
19 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
2,970
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 24 over Turkey River Overflow is a concrete continuous slab carrying Ia 24 over Turkey River Overflow 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 2,970 vehicles a day, roughly 11% of them trucks, projected to reach 2,970 by 2044. The structure is 130 ft (39.6 m) long and 46 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesIa 24
CrossesTurkey River Overflow
Location0.7 Mi. E of Jct. SR B32
RouteState Highway 24
StateIowa
Coordinates43.14894, -91.92857
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 protection8 Very GoodNo 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 rating98.8 US tons
Inventory rating59.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span51 ft (15.5 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,970 (2022)
Projected traffic2,970 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Overflow built?

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

What condition is Ia 24 over Turkey River Overflow 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 Overflow carry?

About 2,970 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 24 over Turkey River Overflow?

The structure is 130 ft (39.6 m) long with a longest span of 51 ft (15.5 m) and a deck 46 ft wide.

Who owns Ia 24 over Turkey River Overflow?

It is owned by the State Highway Agency.