US Bridges

Stockwell LN over Small Stream

Good

Clinton County, Iowa · 082062401 · Structure no. 000000000502671

Built
1994
31 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
887
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stockwell LN over Small Stream is a concrete continuous culvert carrying Stockwell LN over Small Stream in Clinton County, Iowa. It was built in 1994, so it is 31 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 887 vehicles a day, projected to reach 887 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesStockwell LN
CrossesSmall Stream
Location082062401
RouteCity Street 0
StateIowa
Coordinates41.89563, -90.20463
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum 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 length22 ft (6.7 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 traffic887 (2022)
Projected traffic887 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Stockwell LN over Small Stream built?

It was built in 1994, making it 31 years old in 2025.

What condition is Stockwell LN 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 May 2024.

How much traffic does Stockwell LN over Small Stream carry?

About 887 vehicles per day (2022 count).

How long is Stockwell LN over Small Stream?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Stockwell LN over Small Stream?

It is owned by the City or Municipal Highway Agency.