US Bridges

SD071 over Ck

Good

Fall River County, South Dakota · 2.2 N JCT Sd 471 · Structure no. 000000024200232

Built
2000
25 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
239
2024 count
Owner
State
State Highway Agency

About this bridge

SD071 over Ck is a concrete continuous culvert carrying SD071 over Ck in Fall River County, South Dakota. It was built in 2000, so it is 25 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 239 vehicles a day, roughly 29% of them trucks, projected to reach 355 by 2044. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 18.6 mi (30 km).

CarriesSD071
CrossesCk
Location2.2 N JCT Sd 471
RouteState Highway 71
Coordinates43.14213, -103.66221
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 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 alignment9: Superior to present desirable criteria
Operating rating82.8 US tons
Inventory rating49.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
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 traffic239 (2024)
Projected traffic355 by 2044
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 SD071 over Ck built?

It was built in 2000, making it 25 years old in 2025.

What condition is SD071 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 March 2024.

How much traffic does SD071 over Ck carry?

About 239 vehicles per day (2024 count), of which roughly 29% are trucks.

How long is SD071 over Ck?

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

Who owns SD071 over Ck?

It is owned by the State Highway Agency.