[CANUFNET] Mature tree retention

[JackRadecki via CANUFNET]

After 42 years of work in the field, I would offer my opinion working with Sugar Maple on projects first hand. They are a very fragile, sensitive species. The roots are there  just below the ground. Even though the prescription will eleviate compaction and allow water and air to the root system, in the end you are still changing the environment after how many years?

Move the road if you can. It was done for the Bronte Road White Oak in Oakville and the tree was still there the last I looked.

 

Jack Radecki RCA 342

 

From: CANUFNET [mailto:canufnet-bounces at list.web.net] On Behalf Of Julian Dunster via CANUFNET
Sent: August 22, 2018 4:21 PM
To: Andrew Boyd via CANUFNET
Subject: Re: [CANUFNET] Mature tree retention

 

Yes you can.... use a geogrid and float the road over the roots. 

http://nilex.com/roads-and-rail

Any engineer worth their salt would know of this and be able to make it work. Key to the design is the coarse rock on the geogrid (allows water in and gas out). 

On Behalf of Dunster and Associates Environmental Consultants Ltd.
 
 
Dr. Julian A Dunster R.P.F., R.P.P.., M.C.I.P., ISA Certified Arborist,
ASCA Registered Consulting Arborist # 378, 
ISA Tree Risk Assessment Qualified
Honourary Life Member ISA + PNWISA
 
North American distributor for Rinntech 
www.dunster.ca

On 8/22/2018 10:35 AM, Andrew Boyd via CANUFNET wrote:

I suspect this situation is all too frequent for some members of this forum: an infill development is given municipal approval on the basis of an insufficient analysis of mature tree retention.  When upon closer scrutiny this analysis is found to be lacking the role of the consulting arborist (brought in at the 11th hour) is essentially to fit a square peg into a round hole.  In short, and without getting into too many specifics, has anyone had experience building a road over the roots of two mature sugar maples – 80-100 cm dbh (distance of road from base of trees is 1.2m!).  And, yes, the trees must remain.  I’m sure many of you can relate to my frustration.

Thank you.

 

Andrew K. Boyd, R.P.F.

Consulting Urban Forester

IFS Associates Inc.

P.O. Box 13593

Ottawa, ON

K2K 1X6

Tel: 613-839-0101

 <http://www.ifsassociates.ca/> www.ifsassociates.ca



 

 

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