US Bridges

US 65 over Drainage Ditch

Good

Jasper County, Iowa · 1.3 Mi. S of Jct. Ia 117 · Structure no. 000000000030531

Built
1978
47 years old, rebuilt 2001
Condition
Good
inspected February 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
11,100
2022 count
Owner
State
State Highway Agency

About this bridge

US 65 over Drainage Ditch is a concrete continuous culvert carrying US 65 over Drainage Ditch in Jasper County, Iowa. It was built in 1978 and reconstructed in 2001, so it is 47 years old, older 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 11,100 vehicles a day, roughly 11% of them trucks, projected to reach 11,100 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 65
CrossesDrainage Ditch
Location1.3 Mi. S of Jct. Ia 117
RouteU.S. Route 65
StateIowa
Coordinates41.79428, -93.32802
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,100 (2022)
Projected traffic11,100 by 2044
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 65 over Drainage Ditch built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2001.

What condition is US 65 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 February 2024.

How much traffic does US 65 over Drainage Ditch carry?

About 11,100 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is US 65 over Drainage Ditch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns US 65 over Drainage Ditch?

It is owned by the State Highway Agency.