US Bridges

SD071 over Horse Ck

Good

Fall River County, South Dakota · 3.5 N JCT Sd 471 · Structure no. 000000024200222

Built
2000
25 years old
Condition
Good
inspected May 2022
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
239
2024 count
Owner
State
State Highway Agency

About this bridge

SD071 over Horse Ck is a concrete continuous culvert carrying SD071 over Horse 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 25 ft (7.5 m) long. If it were closed, the detour would be 19.3 mi (31 km).

CarriesSD071
CrossesHorse Ck
Location3.5 N JCT Sd 471
RouteState Highway 71
Coordinates43.15568, -103.66222
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 inspectionMay 2022
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 alignment9: Superior 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 length25 ft (7.5 m)
Longest span12 ft (3.7 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 closed19.3 mi (31 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 Horse Ck built?

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

What condition is SD071 over Horse 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 May 2022.

How much traffic does SD071 over Horse Ck carry?

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

How long is SD071 over Horse Ck?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns SD071 over Horse Ck?

It is owned by the State Highway Agency.