US Bridges

1st Street over Dreys Ditch

Fair

Adams County, Iowa · 000000000 · Structure no. 000000000009645

Built
1930
95 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
391
2022 count
Owner
County
County Highway Agency

About this bridge

1st Street over Dreys Ditch is a concrete continuous culvert carrying 1st Street over Dreys Ditch in Adams County, Iowa. It was built in 1930, so it is 95 years old, older 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 391 vehicles a day, roughly 15% of them trucks, projected to reach 391 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries1st Street
CrossesDreys Ditch
Location000000000
RouteCity Street 0
CountyAdams County
StateIowa
Coordinates41.02344, -94.60883
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic391 (2022)
Projected traffic391 by 2043
Trucks15%
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

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

Frequently asked questions

When was 1st Street over Dreys Ditch built?

It was built in 1930, making it 95 years old in 2025.

What condition is 1st Street over Dreys 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 January 2023.

How much traffic does 1st Street over Dreys Ditch carry?

About 391 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1st Street over Dreys Ditch?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m).

Who owns 1st Street over Dreys Ditch?

It is owned by the County Highway Agency.