Knife River – South Dakota Product #40983, #40984, #40985, #40988, and #40989
SD DOT Class A, Class B, Class C, Class D, and Class E
Description
Color: Tifton Pink (Pink, Light Red, Light Purple)
Shape: Angular/Cubical
Size: Varies by class
Weight: Approx. 1.4 tons per loose cubic yard
Source: Sioux Falls Quarry, Sioux Falls, SD
Available at: Sioux Falls Quarry, Yankton Gravel Pit
Applications
- Retaining walls
- Erosion control
- Drainage fill
Mechanical Analysis Data – South Dakota
| SD DOT Rip Rap Class | Rock size in feet | Rock size in pounds | Gradation |
|---|---|---|---|
| A | 1.30 0.95 0.40 | 200 75 5 | 100 50 15 |
| B | 1.80 1.30 0.40 | 500 200 5 | 100 50 15 |
| C | 2.25 1.80 0.95 | 1000 500 75 | 100 50 15 |
| D | 2.85 2.25 1.80 | 2000 1000 500 | 100 50 15 |
| E | 3.60 2.85 2.25 | 4000 2000 1000 | 100 50 15 |
(above information is subject to change but will still be within specification range)