US Bridges

NE 38th ST over Drainage Ditch

Poor

Polk County, Iowa · 080230902 · Structure no. 000000000281790

Built
1914
111 years old
Condition
Poor
inspected April 2023
Type
Arch - Deck
Concrete
Length
23 ft
1 main span
Daily traffic
459
2022 count
Owner
County
County Highway Agency

About this bridge

NE 38th ST over Drainage Ditch is a concrete arch - deck carrying NE 38th ST over Drainage Ditch in Polk County, Iowa. It was built in 1914, so it is 111 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 459 vehicles a day, roughly 10% of them trucks, projected to reach 459 by 2043. The structure is 23 ft (7 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNE 38th ST
CrossesDrainage Ditch
Location080230902
RouteCounty Highway 0
StateIowa
Coordinates41.75744, -93.54138
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57 US tons
Inventory rating41 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic459 (2022)
Projected traffic459 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NE 38th ST over Drainage Ditch built?

It was built in 1914, making it 111 years old in 2025.

What condition is NE 38th ST over Drainage Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does NE 38th ST over Drainage Ditch carry?

About 459 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is NE 38th ST over Drainage Ditch?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 23 ft wide.

Who owns NE 38th ST over Drainage Ditch?

It is owned by the County Highway Agency.