Hello, and thanks for having me in and on your site.
Question, while analizing a possibile site to build a dam for a pond of about an acre of surface area, And 4-1/2' deep, The seasonl creek has scoured the sand and gravel to bedrock, this area is about 16' in lenght. With a 6% downslope.
Should I key into the bed rock, (dense granite), and somewhat smooth, or just go on top with the clay core? This dam will also serve as a bridge with a 20' wide dirt/gravel road on top.
We get 18" of rain a year, except this year...32" to date!!!sl