US Bridges

Ia 38 over Drainage Ditch

Good

Cedar County, Iowa · 1 Mi. N. of US 30 · Structure no. 000000000018371

Built
2020
5 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
1,360
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 38 over Drainage Ditch is a concrete culvert carrying Ia 38 over Drainage Ditch in Cedar County, Iowa. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,360 vehicles a day, roughly 11% of them trucks, projected to reach 1,360 by 2044. The structure is 33 ft (10 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIa 38
CrossesDrainage Ditch
Location1 Mi. N. of US 30
RouteState Highway 38
StateIowa
Coordinates41.90283, -91.15193
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
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating36.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length33 ft (10 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 traffic1,360 (2022)
Projected traffic1,360 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 2020, making it 5 years old in 2025.

What condition is Ia 38 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 August 2024.

How much traffic does Ia 38 over Drainage Ditch carry?

About 1,360 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 38 over Drainage Ditch?

The structure is 33 ft (10 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.