US Bridges

Four Corner Road over Luis Ck

Good

Ziebach County, South Dakota · 4.0W Bridger · Structure no. 000000069002640

Built
2005
20 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
14
2022 count
Owner
County
County Highway Agency

About this bridge

Four Corner Road over Luis Ck is a concrete continuous culvert carrying Four Corner Road over Luis Ck in Ziebach County, South Dakota. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14 vehicles a day, roughly 9% of them trucks, projected to reach 22 by 2032. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 19.9 mi (32 km).

CarriesFour Corner Road
CrossesLuis Ck
Location4.0W Bridger
RouteCounty Highway 0
Coordinates44.54522, -101.99787
Functional classRural Local

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.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length28 ft (8.5 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14 (2022)
Projected traffic22 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Four Corner Road over Luis Ck built?

It was built in 2005, making it 20 years old in 2025.

What condition is Four Corner Road over Luis 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 July 2024.

How much traffic does Four Corner Road over Luis Ck carry?

About 14 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Four Corner Road over Luis Ck?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4.1 m).

Who owns Four Corner Road over Luis Ck?

It is owned by the County Highway Agency.