US Bridges

US018 over Ck

Good

Lincoln County, South Dakota · 2.0 W of Canton · Structure no. 000000042146140

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
5,972
2024 count
Owner
State
State Highway Agency

About this bridge

US018 over Ck is a concrete continuous culvert carrying US018 over Ck in Lincoln County, South Dakota. It was built in 2024, so it is 1 years old, younger 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 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 5,972 vehicles a day, roughly 9% of them trucks, projected to reach 10,111 by 2044. The structure is 26 ft (8 m) long and 76 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesUS018
CrossesCk
Location2.0 W of Canton
RouteU.S. Route 18
Coordinates43.30096, -96.63709
Functional classRural Principal Arterial - Other

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.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating82.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (8 m)
Longest span13 ft (3.9 m)
Deck width76 ft (23.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,972 (2024)
Projected traffic10,111 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US018 over Ck built?

It was built in 2024, making it 1 years old in 2025.

What condition is US018 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 December 2024.

How much traffic does US018 over Ck carry?

About 5,972 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is US018 over Ck?

The structure is 26 ft (8 m) long with a longest span of 13 ft (3.9 m) and a deck 76 ft wide.

Who owns US018 over Ck?

It is owned by the State Highway Agency.