US Bridges

240th ST over Small Stream

Good

Buchanan County, Iowa · 8807152100 · Structure no. 000000000081781

Built
2016
9 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
29
2022 count
Owner
County
County Highway Agency

About this bridge

240th ST over Small Stream is a concrete culvert carrying 240th ST over Small Stream in Buchanan County, Iowa. It was built in 2016, so it is 9 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 29 vehicles a day, projected to reach 29 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries240th ST
CrossesSmall Stream
Location8807152100
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.44228, -91.65228
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2022)
Projected traffic29 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 240th ST over Small Stream built?

It was built in 2016, making it 9 years old in 2025.

What condition is 240th ST over Small Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2022.

How much traffic does 240th ST over Small Stream carry?

About 29 vehicles per day (2022 count).

How long is 240th ST over Small Stream?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns 240th ST over Small Stream?

It is owned by the County Highway Agency.