US Bridges

SD079 over South Canal

Fair

Meade County, South Dakota · 0.6 S Butte CO Line · Structure no. 000000047070306

Built
1954
71 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
31 ft
3 main spans
Daily traffic
1,935
2024 count
Owner
State
State Highway Agency

About this bridge

SD079 over South Canal is a concrete continuous culvert carrying SD079 over South Canal in Meade County, South Dakota. It was built in 1954, so it is 71 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 1,935 vehicles a day, roughly 8% of them trucks, projected to reach 3,084 by 2044. The structure is 31 ft (9.6 m) long. If it were closed, the detour would be 32.9 mi (53 km).

CarriesSD079
CrossesSouth Canal
Location0.6 S Butte CO Line
RouteState Highway 79
Coordinates44.59654, -103.42754
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating109.6 US tons
Inventory rating65.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length31 ft (9.6 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,935 (2024)
Projected traffic3,084 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 km)
TollOn a free road
National Highway SystemYes

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 SD079 over South Canal built?

It was built in 1954, making it 71 years old in 2025.

What condition is SD079 over South Canal 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 April 2024.

How much traffic does SD079 over South Canal carry?

About 1,935 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SD079 over South Canal?

The structure is 31 ft (9.6 m) long with a longest span of 10 ft (3.1 m).

Who owns SD079 over South Canal?

It is owned by the State Highway Agency.