US Bridges

275th ST over Small Stream

Good

Buchanan County, Iowa · 8810319050 · Structure no. 000000000365770

Built
2011
14 years old
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
20 ft
2 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

275th ST over Small Stream is a steel culvert carrying 275th ST over Small Stream in Buchanan County, Iowa. It was built in 2011, so it is 14 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 25 vehicles a day, projected to reach 25 by 2044. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries275th ST
CrossesSmall Stream
Location8810319050
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.39195, -92.04801
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2044
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 275th ST over Small Stream built?

It was built in 2011, making it 14 years old in 2025.

What condition is 275th 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 January 2024.

How much traffic does 275th ST over Small Stream carry?

About 25 vehicles per day (2022 count).

How long is 275th ST over Small Stream?

The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m).

Who owns 275th ST over Small Stream?

It is owned by the County Highway Agency.