Kingbird Ave over Small

Good

Sioux County, Iowa · 096433002 · Structure no. 000000000365615

Built: 2010; 15 years old
Condition: Good; inspected November 2022
Type: Culvert; Concrete Continuous
Length: 22 ft; 2 main spans
Daily traffic: 578; 2022 count
Owner: County; County Highway Agency

About this bridge

Kingbird Ave over Small is a concrete continuous culvert carrying Kingbird Ave over Small in Sioux County, Iowa. It was built in 2010, so it is 15 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 578 vehicles a day, roughly 22% of them trucks, projected to reach 578 by 2042. The structure is 22 ft (6.8 m) long.

Location

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CarriesKingbird Ave

CrossesSmall

Location096433002

RouteCounty Highway 0

CountySioux County

StateIowa

Coordinates43.10378, -95.97849

Functional classRural Major Collector

Condition and inspection

Good

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

Component	Rating	Meaning
Channel and channel protection	8 Very Good	No problems noted.
Culvert	8 Very Good	No 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 adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating48.2 US tons

Inventory rating37.5 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans2

Design loadHL 93

Structure length22 ft (6.8 m)

Longest span10 ft (3 m)

Deck width0 ft (0 m)

Roadway width0 ft (0 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic578 (2022)

Projected traffic578 by 2042

Trucks22%

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—

NavigationNot applicable (no waterway)

Frequently asked questions

When was Kingbird Ave over Small built?

It was built in 2010, making it 15 years old in 2025.

What condition is Kingbird Ave over Small 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 Kingbird Ave over Small carry?

About 578 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is Kingbird Ave over Small?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m).

Who owns Kingbird Ave over Small?

It is owned by the County Highway Agency.