US Bridges

Thomas Ave over Small Stream

Good

Buchanan County, Iowa · 087073106 · Structure no. 000000000080951

Built
2014
11 years old
Condition
Good
inspected December 2024
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Thomas Ave over Small Stream is a steel culvert carrying Thomas Ave over Small Stream in Buchanan County, Iowa. It was built in 2014, so it is 11 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 59 vehicles a day, projected to reach 59 by 2043. The structure is 23 ft (7 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesThomas Ave
CrossesSmall Stream
Location087073106
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.3096, -91.70027
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than 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 length23 ft (7 m)
Longest span9 ft (2.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2043
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Thomas Ave over Small Stream built?

It was built in 2014, making it 11 years old in 2025.

What condition is Thomas Ave 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 December 2024.

How much traffic does Thomas Ave over Small Stream carry?

About 59 vehicles per day (2022 count).

How long is Thomas Ave over Small Stream?

The structure is 23 ft (7 m) long with a longest span of 9 ft (2.7 m) and a deck 24 ft wide.

Who owns Thomas Ave over Small Stream?

It is owned by the County Highway Agency.