US Bridges

Local over Drainage Ditch

Fair

Madison County, Iowa · 074290501 · Structure no. 000000000232481

Built
1977
48 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Drainage Ditch is a concrete continuous culvert carrying Local over Drainage Ditch in Madison County, Iowa. It was built in 1977, so it is 48 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 45 vehicles a day, projected to reach 45 by 2043. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal
CrossesDrainage Ditch
Location074290501
RouteCounty Highway 0
CountyMadison County
StateIowa
Coordinates41.24374, -94.21692
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 alignment7: Better than present minimum criteria
Operating rating57.3 US tons
Inventory rating34.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length20 ft (6.1 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 traffic45 (2022)
Projected traffic45 by 2043
Trucks0%
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Drainage Ditch built?

It was built in 1977, making it 48 years old in 2025.

What condition is Local 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 August 2023.

How much traffic does Local over Drainage Ditch carry?

About 45 vehicles per day (2022 count).

How long is Local over Drainage Ditch?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m).

Who owns Local over Drainage Ditch?

It is owned by the County Highway Agency.