US Bridges

240th Ave over Wapsipinicon River

Fair

Scott County, Iowa · 080E41208 · Structure no. 000000000303610

Built
1961
64 years old, rebuilt 2005
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
653 ft
6 main spans
Daily traffic
1,140
2022 count
Owner
County
County Highway Agency

About this bridge

240th Ave over Wapsipinicon River is a steel continuous stringer/multi-beam or girder carrying 240th Ave over Wapsipinicon River in Scott County, Iowa. It was built in 1961 and reconstructed in 2005, so it is 64 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 5 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 1,140 vehicles a day, roughly 11% of them trucks, projected to reach 1,140 by 2043. The structure is 653 ft (199 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries240th Ave
CrossesWapsipinicon River
Location080E41208
RouteCounty Highway 0
CountyScott County
StateIowa
Coordinates41.75603, -90.43541
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38 US tons
Inventory rating16.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length653 ft (199 m)
Longest span117 ft (35.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,140 (2022)
Projected traffic1,140 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 240th Ave over Wapsipinicon River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2005.

What condition is 240th Ave over Wapsipinicon River 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 May 2023.

How much traffic does 240th Ave over Wapsipinicon River carry?

About 1,140 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is 240th Ave over Wapsipinicon River?

The structure is 653 ft (199 m) long with a longest span of 117 ft (35.7 m) and a deck 32 ft wide.

Who owns 240th Ave over Wapsipinicon River?

It is owned by the County Highway Agency.