(cross-posted to earthwork and storm forums)
I have two ponds in the center of a residential neighborhood that have slumping banks. The soil has eroded in 12" x 12" chunks in the steeper sections, and a more uniform erosion in the shallower sections. The side slopes of the pond range from 3:1 to 1:1.
A couple options I have been considering include filter fabric/rip rap along the pond perimeter (12" avg. diameter, with stone both above and below normal water surface level), and vegetative stabilization using permanent erosion control blankets and a seed mix that will withstand constant inundation of water.
The vegetative option seems attractive from a cost perspective (no need to get a truck in between buildings for stone install), but I worry that the root structure won't be deep enough and soil will erode underneath root level. Will the stone be sturdy enough, or will freeze-thaw action move the stone into the pond?
Thanks for your input.
I have two ponds in the center of a residential neighborhood that have slumping banks. The soil has eroded in 12" x 12" chunks in the steeper sections, and a more uniform erosion in the shallower sections. The side slopes of the pond range from 3:1 to 1:1.
A couple options I have been considering include filter fabric/rip rap along the pond perimeter (12" avg. diameter, with stone both above and below normal water surface level), and vegetative stabilization using permanent erosion control blankets and a seed mix that will withstand constant inundation of water.
The vegetative option seems attractive from a cost perspective (no need to get a truck in between buildings for stone install), but I worry that the root structure won't be deep enough and soil will erode underneath root level. Will the stone be sturdy enough, or will freeze-thaw action move the stone into the pond?
Thanks for your input.