US Bridges

Ia 38 over Drainage Ditch

Fair

Jones County, Iowa · 1.0 Mi. N of Jct. Ia 64 · Structure no. 000000000032351

Built
1990
35 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
680
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 38 over Drainage Ditch is a concrete continuous culvert carrying Ia 38 over Drainage Ditch in Jones County, Iowa. It was built in 1990, so it is 35 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 680 vehicles a day, roughly 21% of them trucks, projected to reach 680 by 2044. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 24.2 mi (39 km).

CarriesIa 38
CrossesDrainage Ditch
Location1.0 Mi. N of Jct. Ia 64
RouteState Highway 38
StateIowa
Coordinates42.0766, -91.09741
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 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 traffic680 (2022)
Projected traffic680 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 38 over Drainage Ditch built?

It was built in 1990, making it 35 years old in 2025.

What condition is Ia 38 over Drainage Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Ia 38 over Drainage Ditch carry?

About 680 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Ia 38 over Drainage Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns Ia 38 over Drainage Ditch?

It is owned by the State Highway Agency.