US Bridges

SD079 over Deadman Ck

Fair

Butte County, South Dakota · 0.6 N Newell & JCT 212 E · Structure no. 000000010310336

Built
1962
63 years old
Condition
Fair
inspected May 2022
Type
Culvert
Concrete Continuous
Length
25 ft
3 main spans
Daily traffic
692
2024 count
Owner
State
State Highway Agency

About this bridge

SD079 over Deadman Ck is a concrete continuous culvert carrying SD079 over Deadman Ck in Butte County, South Dakota. It was built in 1962, so it is 63 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 6 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 692 vehicles a day, roughly 24% of them trucks, projected to reach 993 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 24.9 mi (40 km).

CarriesSD079
CrossesDeadman Ck
Location0.6 N Newell & JCT 212 E
RouteState Highway 79
Coordinates44.72679, -103.42557
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length25 ft (7.6 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic692 (2024)
Projected traffic993 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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$14,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SD079 over Deadman Ck built?

It was built in 1962, making it 63 years old in 2025.

What condition is SD079 over Deadman 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 May 2022.

How much traffic does SD079 over Deadman Ck carry?

About 692 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is SD079 over Deadman Ck?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m).

Who owns SD079 over Deadman Ck?

It is owned by the State Highway Agency.