<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">See Page 195 in Up By Roots. I believe that you can build a very substantial rod over tree roots Just have to build up with no cutting of existing grade and be vigilant in site inspections and specification to keep compaction out of the rootzone. But the engineer will go bonkers. Geogrids are the most important part of the section detailed.<br class=""><div><br class=""></div><div>Jim Urban<br class=""><blockquote type="cite" class=""><div class="">On Aug 22, 2018, at 1:35 PM, Andrew Boyd via CANUFNET <<a href="mailto:canufnet@list.web.net" class="">canufnet@list.web.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: ArialMT; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">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 11<sup class="">th</sup><span class="Apple-converted-space"> </span>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.<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Thank you.<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(31, 73, 125);" class="">Andrew K. Boyd, R.P.F.<o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(31, 73, 125);" class="">Consulting Urban Forester<o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(31, 73, 125);" class="">IFS Associates Inc.<o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(31, 73, 125);" class="">P.O. Box 13593<o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(31, 73, 125);" class="">Ottawa, ON<o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(31, 73, 125);" class="">K2K 1X6<o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(31, 73, 125);" class="">Tel: 613-839-0101<o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><i class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; font-variant-ligatures: normal; font-variant-numeric: normal; font-variant-caps: small-caps; font-variant-alternates: normal; font-variant-position: normal; font-variant-east-asian: normal; color: rgb(83, 129, 53);" class=""><a href="http://www.ifsassociates.ca/" style="color: purple; text-decoration: underline;" class=""><span style="color: rgb(83, 129, 53);" class="">www.ifsassociates.ca</span></a><o:p class=""></o:p></span></i></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: "Times New Roman", serif;" class=""><span style="font-size: 11pt; font-family: "Bradley Hand ITC"; color: rgb(31, 73, 125);" class=""><span id="cid:image003.png@01D43A1D.0B57C0F0"><image003.png></span></span></div></div></div></div></blockquote></div><br class=""></body></html>