COVER | Slope Range (2) (percent) | Permissible Velocity (1) | |
Erosion Resistant Soils (feet/sec.) | Easily Eroded Soils (feet/sec.) | ||
COVER | Slope Range (2) (percent) | Permissible Velocity (1) | |
Erosion Resistant Soils (feet/sec.) | Easily Eroded Soils (feet/sec.) | ||
0-5 | 8 | 6 | |
Bermudagrass | 5-10 | 7 | 5 |
over 10 | 6 | 4 | |
Bahia | |||
Buffalograss | 0-5 | 7 | 5 |
Kentucky Bluegrass | 5-10 | 6 | 4 |
Smooth Brome | over 10 | 5 | 3 |
Blue Grama | |||
Grass Mixtures (2) | 0-5 | 5 | 4 |
Reed Canarygrass | 5-10 | 4 | 3 |
Lespediza Sericea | |||
Weeping Lovegrass (3) | |||
Yellow Bluestem | |||
Redtop | 0-5 | 3.4 | 2.5 |
Alfalfa | |||
Red Fescue | |||
Common Lespedeze (4) (5) | |||
Sudangrass (4) | 0-5 | 3.5 | 2.5 |
(1) Use velocities exceeding five (5) feet per second only where good covers and proper maintenance can be obtained.
(2) Do not use on slopes steeper than ten (10) percent except for vegetated side slopes in combination with a stone, concrete, or highly resistant vegetative center section.
(3) Do not use on slopes steeper than five (5) percent except for vegetated side slopes in combination with stone, concrete, or highly resistant vegetative center section.
(4) Annuals - use on mild slopes or as temporary protection until permanent covers are established.
(5) Use on slopes steeper than five (5) percent is not recommended.
(a) From Soil Conservation Service, SCS-TP-61, Handbook of Channel Design for Soil and Water Conservation.