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. � <br /> Christine Mattson �� <br /> From: Mike Gaffron <br /> Sent: Monday, September 23, 2013 10:13 AM <br /> To: 'Peter W. Johnson' <br /> Cc: Melanie Curtis; Christine Mattson <br /> Subject: Bluff Review for Morries <br /> Attachments: Morries 1420 BPRd and 3165 NShDr Bluff Review.pdf <br /> Peter— <br /> See attached sketch. I looked at three different transects on the two properties. First established the toe of bluff per <br /> definition;then established the top of bluff per definition; then calculated slope (rise over run) for a)the entire distance <br /> from toe to top; and b) the distance from toe to 955' (which is approximately the point 25' above the OHWL). In no case <br /> did the calculated slope get to more than 25%. We do not consider short segments of>30%slope as defining a bluff—it <br /> has to be based on the average of toe to top and/or toe to the 955 contour. <br /> Unless the topo you are working from is significantly different from that in our GIS system, it appears you do not have a <br /> bluff to deal with. <br /> Mike <br /> Michael P.Gaffron <br /> Assistant City Administrator/Long Term Strategy <br /> City of Orono <br /> (Street Address)2750 Kelley Parkway <br /> (Mailing Address)P.O. Box 66,Crystal Bay,MN 55323 <br /> Phone:(952)249-4600 <br /> Fax: (952)249-4616 <br /> 1 <br />