US Bridges

C33 180th ST over Small Stream

Good

Butler County, Iowa · 092161401 · Structure no. 000000000088531

Built
2015
10 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
805
2022 count
Owner
County
County Highway Agency

About this bridge

C33 180th ST over Small Stream is a concrete continuous culvert carrying C33 180th ST over Small Stream in Butler County, Iowa. It was built in 2015, so it is 10 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 805 vehicles a day, roughly 11% of them trucks, projected to reach 805 by 2043. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesC33 180th ST
CrossesSmall Stream
Location092161401
RouteCounty Highway 0
CountyButler County
StateIowa
Coordinates42.78824, -92.69691
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 protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length27 ft (8.2 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 traffic805 (2022)
Projected traffic805 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was C33 180th ST over Small Stream built?

It was built in 2015, making it 10 years old in 2025.

What condition is C33 180th ST 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 April 2022.

How much traffic does C33 180th ST over Small Stream carry?

About 805 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is C33 180th ST over Small Stream?

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

Who owns C33 180th ST over Small Stream?

It is owned by the County Highway Agency.