US Bridges

FM 240th Ave over Drainage Ditch #28

Fair

Clay County, Iowa · 097363304 · Structure no. 000000000117471

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
1,228
2022 count
Owner
County
County Highway Agency

About this bridge

FM 240th Ave over Drainage Ditch #28 is a prestressed concrete stringer/multi-beam or girder carrying FM 240th Ave over Drainage Ditch #28 in Clay County, Iowa. It was built in 1987, so it is 38 years old, younger 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 1,228 vehicles a day, roughly 22% of them trucks, projected to reach 1,228 by 2043. The structure is 44 ft (13.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM 240th Ave
CrossesDrainage Ditch #28
Location097363304
RouteCounty Highway 0
CountyClay County
StateIowa
Coordinates43.17938, -95.11161
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.3 US tons
Inventory rating45.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,228 (2022)
Projected traffic1,228 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 240th Ave over Drainage Ditch #28 built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM 240th Ave over Drainage Ditch #28 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 2023.

How much traffic does FM 240th Ave over Drainage Ditch #28 carry?

About 1,228 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is FM 240th Ave over Drainage Ditch #28?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 34 ft wide.

Who owns FM 240th Ave over Drainage Ditch #28?

It is owned by the County Highway Agency.