US Bridges

215th ST over Small Stream

Good

Clayton County, Iowa · 094043303 · Structure no. 000000000120411

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
49
2022 count
Owner
County
County Highway Agency

About this bridge

215th ST over Small Stream is a concrete culvert carrying 215th ST over Small Stream in Clayton County, Iowa. It was built in 1986, so it is 39 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 49 vehicles a day, projected to reach 49 by 2044. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries215th ST
CrossesSmall Stream
Location094043303
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates42.91368, -91.32656
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.4 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 traffic49 (2022)
Projected traffic49 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 215th ST over Small Stream built?

It was built in 1986, making it 39 years old in 2025.

What condition is 215th 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 October 2024.

How much traffic does 215th ST over Small Stream carry?

About 49 vehicles per day (2022 count).

How long is 215th ST over Small Stream?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns 215th ST over Small Stream?

It is owned by the County Highway Agency.