Wetland Berm Design
Wetland Berm Design
(OP)
I am in the process of designing a small berm to be located along the edge of existing wetlands at the back of private lots. Currently when the WWTP discharges into the basin (series of interconnected ponds/pipe/wetlands) the water encroaches onto the private property. The intent is to design the berm to keep the water out of the yards. However, the yard slope is from the road to the back of the lot (wetlands)so we also need to direct the storm water to the wetlands.
The challenge will be to design the berm to keep the water out of the backyard but also allow for drainage from the lots into the wetlands. To put it in perspective we are looking at a 2' high berm approximately 500 lf across the back of 4 lots. Any and all suggestions are welcome.
Thanks
The challenge will be to design the berm to keep the water out of the backyard but also allow for drainage from the lots into the wetlands. To put it in perspective we are looking at a 2' high berm approximately 500 lf across the back of 4 lots. Any and all suggestions are welcome.
Thanks
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RE: Wetland Berm Design
If so, turn the back of your lots into a detention basin with a check valve on the outflow pipe. Actually I've seen devices as simple as a rubber sheath on the end of the pipe that opens in response to flow down the pipe but doesn't allow return flow. Well, I've seen them in catelogues, not actually in use, but presumably you'd be able to remove the rubber sheath pretty easily to flush the pipe if it gets blocked.
RE: Wetland Berm Design
RE: Wetland Berm Design
Also I have seen trash holding them open so a screen is sometimes needed.
My friend's house is in a similar situation. They keep a pretty good sized pump in their garage. Is the wetland the natural drainage path or just a depression?