Ed,
Thanks for the tune-up on Toe Drain -101. We likely encroached on the advanced course; my advantage.
Now, back to big_pond....
Would these engineering decisions and construction practice provide any clues to what may be going on with his dam? The decision to install the toe drain might indicate fore-knowledge of potential compromise, whether it be in the dam soils or active springs within the damsite. Are they a clue, or is focus an over-reaction? Big_pond noted the toe drain activity:
Now there is some trickle of water coming out of both of these, and it is rust color BUT NOT MUDDY.
What is the guesstimated volume? History and frequency of flow? Is this a clue to hydrolic activity within the dam mass (and perhaps the entire site)?
