T23 Holly Ave over Small Stream

Good

Butler County, Iowa · 090172901 · Structure no. 000000000087131

Built: 2018; 7 years old
Condition: Good; inspected March 2023
Type: Culvert; Concrete Continuous
Length: 38 ft; 3 main spans
Daily traffic: 137; 2022 count
Owner: County; County Highway Agency

About this bridge

T23 Holly Ave over Small Stream is a concrete continuous culvert carrying T23 Holly Ave over Small Stream in Butler County, Iowa. It was built in 2018, so it is 7 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 137 vehicles a day, projected to reach 137 by 2043. The structure is 38 ft (11.6 m) long.

Location

Open in Google Maps

CarriesT23 Holly Ave

CrossesSmall Stream

Location090172901

RouteCounty Highway 0

CountyButler County

StateIowa

Coordinates42.5752, -92.87953

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.

Component	Rating	Meaning
Channel and channel protection	8 Very Good	No problems noted.
Culvert	8 Very Good	No problems noted.

Last inspectionMarch 2023

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourBridge not over waterway

Structural evaluation8: Equal to present desirable criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating47.2 US tons

Inventory rating36.4 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckNot applicable

Main spans3

Design loadHL 93

Structure length38 ft (11.6 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 traffic137 (2022)

Projected traffic137 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesOther

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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNot applicable (no waterway)

Frequently asked questions

When was T23 Holly Ave over Small Stream built?

It was built in 2018, making it 7 years old in 2025.

What condition is T23 Holly 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 March 2023.

How much traffic does T23 Holly Ave over Small Stream carry?

About 137 vehicles per day (2022 count).

How long is T23 Holly Ave over Small Stream?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns T23 Holly Ave over Small Stream?

It is owned by the County Highway Agency.