US Bridges

240th Ave over Stream

Fair

Dickinson County, Iowa · 099363301 · Structure no. 000000000365890

Built
1963
62 years old, rebuilt 1999
Condition
Fair
inspected March 2021
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
598
2022 count
Owner
County
County Highway Agency

About this bridge

240th Ave over Stream is a steel culvert carrying 240th Ave over Stream in Dickinson County, Iowa. It was built in 1963 and reconstructed in 1999, so it is 62 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 598 vehicles a day, roughly 13% of them trucks, projected to reach 598 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries240th Ave
CrossesStream
Location099363301
RouteCounty Highway 0
CountyDickinson County
StateIowa
Coordinates43.34744, -95.11191
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating80.5 US tons
Inventory rating62.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 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 traffic598 (2022)
Projected traffic598 by 2043
Trucks13%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 240th Ave over Stream built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1999.

What condition is 240th Ave over Stream 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 March 2021.

How much traffic does 240th Ave over Stream carry?

About 598 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is 240th Ave over Stream?

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

Who owns 240th Ave over Stream?

It is owned by the County Highway Agency.