US Bridges

SD015 over Ck

Fair

Grant County, South Dakota · 0.5 N JCT Sd 20 · Structure no. 000000026290144

Built
2022
3 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
1,756
2024 count
Owner
State
State Highway Agency

About this bridge

SD015 over Ck is a concrete continuous culvert carrying SD015 over Ck in Grant County, South Dakota. It was built in 2022, so it is 3 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 1,756 vehicles a day, roughly 20% of them trucks, projected to reach 2,399 by 2044. The structure is 26 ft (8 m) long and 40 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesSD015
CrossesCk
Location0.5 N JCT Sd 20
RouteState Highway 15
Coordinates45.11557, -96.6396
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 alignment9: Superior to present desirable criteria
Operating rating52.1 US tons
Inventory rating40 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 width40 ft (12.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,756 (2024)
Projected traffic2,399 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 km)
TollOn a free road
National Highway SystemNo

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 SD015 over Ck built?

It was built in 2022, making it 3 years old in 2025.

What condition is SD015 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 November 2024.

How much traffic does SD015 over Ck carry?

About 1,756 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is SD015 over Ck?

The structure is 26 ft (8 m) long with a longest span of 13 ft (3.9 m) and a deck 40 ft wide.

Who owns SD015 over Ck?

It is owned by the State Highway Agency.