US Bridges

175th Ave over Small Stream

Fair

Buchanan County, Iowa · 089100703 · Structure no. 000000000083061

Built
1995
30 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
33
2022 count
Owner
County
County Highway Agency

About this bridge

175th Ave over Small Stream is a concrete slab carrying 175th Ave over Small Stream in Buchanan County, Iowa. It was built in 1995, so it is 30 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 33 vehicles a day, projected to reach 33 by 2044. The structure is 31 ft (9.4 m) long and 31 ft wide.

Location

Open in Google Maps
Carries175th Ave
CrossesSmall Stream
Location089100703
RouteCounty Highway 0
CountyBuchanan County
StateIowa
Coordinates42.53341, -92.06642
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than 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 typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2022)
Projected traffic33 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 175th Ave over Small Stream built?

It was built in 1995, making it 30 years old in 2025.

What condition is 175th Ave over Small Stream 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 January 2024.

How much traffic does 175th Ave over Small Stream carry?

About 33 vehicles per day (2022 count).

How long is 175th Ave over Small Stream?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 31 ft wide.

Who owns 175th Ave over Small Stream?

It is owned by the County Highway Agency.