Originally posted by GW:
........
To make it easier to design I've been thinking in terms of a pond within a pond...............
Any ideas or comments would be appreciated.
GW, following photos illustrates the way we handled a �pond within a pond.
Not conceived nor planned on an engineering basis, but by necessity to control massive cattail invasion created by leaving a �shelf� on the upper end, perhaps similar to your design.
When pond was at full level, the �shelf� area was 3 ft deep.
As the water receded, cattails spread with the lowering water level
I�m sure with an aggressive and expensive approach for control of weeds and cattails with liners/ rimed banks, etc, the problem could have been solved.
We decided to bring in a dozer to remove the cattails and a track hoe create a �dugout� pond that would be a part of main pond at high water, and a separate 5 ft deep pond in drought conditions.
It has worked well in spite of steep eroded banks due to numerous spring �flash flooding�, and so far cattails are well controlled.
Banks are too steep to mow � will fence within goat pasture for weed control
We could have installed a siphon but elected go with berm/levee instead.
Before.. Cattails on �shelf �area.
