US Bridges

392 Ave over Ck

Good

Aurora County, South Dakota · 1.4S 1W Storla · Structure no. 000000002220064

Built
1935
90 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
65
2022 count
Owner
County
County Highway Agency

About this bridge

392 Ave over Ck is a concrete culvert carrying 392 Ave over Ck in Aurora County, South Dakota. It was built in 1935, so it is 90 years old, older than the South Dakota average of 48.9 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 65 vehicles a day, roughly 3% of them trucks, projected to reach 65 by 2032. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Carries392 Ave
CrossesCk
Location1.4S 1W Storla
RouteCounty Highway 0
Coordinates43.84527, -98.36577
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length20 ft (6.1 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 traffic65 (2022)
Projected traffic65 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 392 Ave over Ck built?

It was built in 1935, making it 90 years old in 2025.

What condition is 392 Ave over Ck 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 July 2023.

How much traffic does 392 Ave over Ck carry?

About 65 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is 392 Ave over Ck?

The structure is 20 ft (6.1 m) long with a longest span of 10 ft (3 m).

Who owns 392 Ave over Ck?

It is owned by the County Highway Agency.