[Daniel Phillips]

Also-does anyone have any specific feedback on the sub-irrigation system?  I’m hoping to get them at least 6″ deep with an overflow near the top of that.  I’m wondering if it’s necessary/ideal to have them directly under the root ball or if it’s ok/better to slightly offset.  Any insight would be very helpful. 

Best,

Daniel

[Daniel Phillips]

Thanks Robert, 

I appreciate your insight as well.  We are in the process of getting some material quotes at the moment that will certainly impact the scale/approach.  We are thinking of going with Ginkgo trees (hopefully three)  with an initial trunk diameter of about 6″ and a canopy of 8′.  The total volume of soil is approx 3-4,000 cu. ft.  

Your idea of the mortar sacks is also interesting.  Beyond the increased structural stability, do you suppose those are any cheaper than the sand bags?  

[Daniel Phillips]

Thanks so much Mark, this project is in Rome, IT with a slightly different regime for the marking of utilities (everything is mired in bureaucracy).  Your point about depth/footprint is well taken. Looking forward to making progress. 

Glad to find this forum!

Best,

Daniel

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