US Bridges

SD010 over Ck

Fair

McPherson County, South Dakota · 5.6 E JCT Sd 45 · Structure no. 000000045438150

Built
1957
68 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
770
2024 count
Owner
State
State Highway Agency

About this bridge

SD010 over Ck is a concrete continuous culvert carrying SD010 over Ck in McPherson County, South Dakota. It was built in 1957, so it is 68 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 fair condition with a lowest component rating of 5 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 770 vehicles a day, roughly 21% of them trucks, projected to reach 1,063 by 2044. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 39.1 mi (63 km).

CarriesSD010
CrossesCk
Location5.6 E JCT Sd 45
RouteState Highway 10
Coordinates45.72252, -98.81383
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.3 US tons
Inventory rating45.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.3 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 traffic770 (2024)
Projected traffic1,063 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.1 mi (63 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$12,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SD010 over Ck built?

It was built in 1957, making it 68 years old in 2025.

What condition is SD010 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 April 2024.

How much traffic does SD010 over Ck carry?

About 770 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is SD010 over Ck?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns SD010 over Ck?

It is owned by the State Highway Agency.