US Bridges

Ia 24 over Plum Creek

Good

Chickasaw County, Iowa · 4.0 Mi. E of S.R. B57 · Structure no. 000000000019821

Built
2000
25 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
4,290
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 24 over Plum Creek is a concrete continuous slab carrying Ia 24 over Plum Creek in Chickasaw County, Iowa. It was built in 2000, so it is 25 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 4,290 vehicles a day, roughly 5% of them trucks, projected to reach 4,290 by 2044. The structure is 113 ft (34.4 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIa 24
CrossesPlum Creek
Location4.0 Mi. E of S.R. B57
RouteState Highway 24
StateIowa
Coordinates43.0611, -92.23936
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.3 US tons
Inventory rating57.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span43 ft (13.1 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,290 (2022)
Projected traffic4,290 by 2044
Trucks5%
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 Plum Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Ia 24 over Plum 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 February 2024.

How much traffic does Ia 24 over Plum Creek carry?

About 4,290 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Ia 24 over Plum Creek?

The structure is 113 ft (34.4 m) long with a longest span of 43 ft (13.1 m) and a deck 44 ft wide.

Who owns Ia 24 over Plum Creek?

It is owned by the State Highway Agency.