HomeMy WebLinkAboutRe: bluff review t ,
Christine Mattson 0�
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From: Mike Gaffron
Sent: Monday, September 23, 2013 10:13 AM
To: 'Peter W. Johnson'
Cc: Melanie Curtis; Christine Mattson
Subject: Bluff Review for Morries
Attachments: Morries 1420 BPRd and 3165 NShDr Bluff Review.pdf
Peter—
See attached sketch. I looked at three different transects on the two properties. First established the toe of bluff per
definition; then established the top of bluff per definition;then calculated slope (rise over run) for a)the entire distance
from toe to top; and b)the distance from toe to 955' (which is approximately the point 25' above the OHWL). in no case
did the calculated slope get to more than 25%. We do not consider short segments of>30%slope as defining a bluff—it
has to be based on the average of toe to top and/or toe to the 955 contour.
Unless the topo you are working from is significantly different from that in our GIS system, it appears you do not have a
bluff to deal with.
Mike
Michael P.Gaffron
Assistant City Administrator/Long Term Strategy
City of Orono
(Street Address)2750 Kelley Parkway
(Mailing Address) P.O.Box 66,Crystal Bay,MN 55323
Phone:(952)249-4600
Fax: (952)249-4616
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Disclaimer:
This drawing is neither a legalty recorded map nor a
rvey and is not intended to be used as one.This
� drawing is a rompilation of re<ords,inPormation,and data
0 50 Feet located in various city,counry,and state o(fices,and
other sources atlec[ing the area shown,and is ro 6e used
�OBolton&Menk,inc-WebG15 9/23/2013923AM forrefe2ncepurposesonly.TheCityofOronoisnot
responsible for any inaccuracies herein contained.