T16 Douglas Ave over Small Stream

Good

Butler County, Iowa · 091181502 · Structure no. 000000000088091

Built: 2017; 8 years old
Condition: Good; inspected March 2023
Type: Culvert; Concrete Continuous
Length: 25 ft; 2 main spans
Daily traffic: 579; 2022 count
Owner: County; County Highway Agency

About this bridge

T16 Douglas Ave over Small Stream is a concrete continuous culvert carrying T16 Douglas Ave over Small Stream in Butler County, Iowa. It was built in 2017, so it is 8 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 579 vehicles a day, roughly 27% of them trucks, projected to reach 579 by 2043. The structure is 25 ft (7.6 m) long.

Location

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CarriesT16 Douglas Ave

CrossesSmall Stream

Location091181502

RouteCounty Highway 0

CountyButler County

StateIowa

Coordinates42.69676, -92.96681

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 inspectionMarch 2023

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating49.6 US tons

Inventory rating38.3 US tons

Structure

Structure typeCulvert

MaterialConcrete Continuous

DeckOther

Main spans2

Design loadHL 93

Structure length25 ft (7.6 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 traffic579 (2022)

Projected traffic579 by 2043

Trucks27%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesRelief for waterway

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—

NavigationNo navigation control on waterway

Frequently asked questions

When was T16 Douglas Ave over Small Stream built?

It was built in 2017, making it 8 years old in 2025.

What condition is T16 Douglas 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 T16 Douglas Ave over Small Stream carry?

About 579 vehicles per day (2022 count), of which roughly 27% are trucks.

How long is T16 Douglas Ave over Small Stream?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns T16 Douglas Ave over Small Stream?

It is owned by the County Highway Agency.