US Bridges

US212 over Ck

Fair

Potter County, South Dakota · 0.5M W Jct. SD47 N · Structure no. 000000054306130

Built
2001
24 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
934
2024 count
Owner
State
State Highway Agency

About this bridge

US212 over Ck is a concrete culvert carrying US212 over Ck in Potter County, South Dakota. It was built in 2001, so it is 24 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 934 vehicles a day, roughly 25% of them trucks, projected to reach 1,234 by 2044. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS212
CrossesCk
Location0.5M W Jct. SD47 N
RouteU.S. Route 212
Coordinates45.05717, -99.78539
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating89.9 US tons
Inventory rating53.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length29 ft (8.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic934 (2024)
Projected traffic1,234 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 US212 over Ck built?

It was built in 2001, making it 24 years old in 2025.

What condition is US212 over Ck in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does US212 over Ck carry?

About 934 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is US212 over Ck?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m).

Who owns US212 over Ck?

It is owned by the State Highway Agency.