US Bridges

Douglas Ave. over Small Stream

Good

Butler County, Iowa · 091183402 · Structure no. 000000000088191

Built
1992
33 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
501
2022 count
Owner
County
County Highway Agency

About this bridge

Douglas Ave. over Small Stream is a concrete continuous culvert carrying Douglas Ave. over Small Stream in Butler County, Iowa. It was built in 1992, so it is 33 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 501 vehicles a day, roughly 25% of them trucks, projected to reach 501 by 2043. The structure is 27 ft (8.2 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesDouglas Ave.
CrossesSmall Stream
Location091183402
RouteCounty Highway 0
CountyButler County
StateIowa
Coordinates42.65576, -92.96687
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.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic501 (2022)
Projected traffic501 by 2043
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Douglas Ave. over Small Stream built?

It was built in 1992, making it 33 years old in 2025.

What condition is 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 Douglas Ave. over Small Stream carry?

About 501 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Douglas Ave. over Small Stream?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns Douglas Ave. over Small Stream?

It is owned by the County Highway Agency.