Quote:
Originally Posted by FerrariEnzo
Looks like the concrete in the memorial plaza is at or near grade with regards to the "brim" of the waterfalls. If that is the case how can they expect to plant white oaks and other large trees... oaks have tap roots that are often at least 50% of their height if not more. I am guessing tree selection has either shifted or I am not seeing evidence of how they engineered to accomidate this.
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I've been wondering this myself.