US Bridges

Ia 24 over Drainage Ditch

Good

Chickasaw County, Iowa · 0.1 Mi. W of E JCT SR V56 · Structure no. 000000000019841

Built
2006
19 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
2,690
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 24 over Drainage Ditch is a concrete continuous slab carrying Ia 24 over Drainage Ditch in Chickasaw 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 2,690 vehicles a day, roughly 20% of them trucks, projected to reach 2,690 by 2044. The structure is 128 ft (39 m) long and 41 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIa 24
CrossesDrainage Ditch
Location0.1 Mi. W of E JCT SR V56
RouteState Highway 24
StateIowa
Coordinates43.07209, -92.14228
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.8 US tons
Inventory rating78 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,690 (2022)
Projected traffic2,690 by 2044
Trucks20%
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

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 Drainage Ditch built?

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

What condition is Ia 24 over Drainage Ditch 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 Drainage Ditch carry?

About 2,690 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Ia 24 over Drainage Ditch?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 41 ft wide.

Who owns Ia 24 over Drainage Ditch?

It is owned by the State Highway Agency.