US Bridges

SD042 over Ck

Good

McCook County, South Dakota · 0.9E JCT US 81 · Structure no. 000000044119210

Built
1998
27 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
1,614
2024 count
Owner
State
State Highway Agency

About this bridge

SD042 over Ck is a concrete continuous culvert carrying SD042 over Ck in McCook County, South Dakota. It was built in 1998, so it is 27 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 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 1,614 vehicles a day, roughly 13% of them trucks, projected to reach 2,416 by 2044. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 16.8 mi (27 km).

CarriesSD042
CrossesCk
Location0.9E JCT US 81
RouteState Highway 42
Coordinates43.54328, -97.36961
Functional classRural Minor Arterial

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.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length27 ft (8.1 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,614 (2024)
Projected traffic2,416 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 SD042 over Ck built?

It was built in 1998, making it 27 years old in 2025.

What condition is SD042 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 August 2024.

How much traffic does SD042 over Ck carry?

About 1,614 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SD042 over Ck?

The structure is 27 ft (8.1 m) long with a longest span of 13 ft (3.9 m).

Who owns SD042 over Ck?

It is owned by the State Highway Agency.