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iii (>■•- ■ - ' <br />r-y^-ci> •.,_• ar --^ ^ ' <br />Ms. Jeanne A. Mabusth <br />City of Orono <br />Page 2 <br />May 8, 1992 <br />il <br />We would recommend that a retaining wall be constructed along the steep bank to save the <br />oak trees and to provide a wider corridor for the ditch and trail. <br />The riprap should be extended all the way down to the water ’s edge, as the lake is presently <br />at or near the Ordinary Normal High Water Level (ONHWL). <br />We have been infomied by the Nflinnehaha Creek Watershed that a permit may be necessary <br />■ to construct the improvements below the 100-year High Water Level of the lake. The <br />Minnesota Department of Natural Reserves and the U.S. Army Corps of Engineers should <br />■i also be contacted for their comments on the improvements. <br />Please contact me at this office if you ha> e any questions. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLTiC & ASSOCIATES, INC. <br />Shawn D. Gustafson <br />SDG:lk ■f' <br />a" <br />• ;r <br />If:- ^tl << <br />w -vV <br />‘k. w <br />; f t <br />'.it <br />f'A • -r ^ <br />• -. w <br />f <br />'if-:,V <br />V>.M ’•X' <br />V ^-v-' <br />*' r <br />V.'v. <br />,V' <br />■.1 <br />■f <br />■; <br />' "'.V <br />V <br />\ ■'• <br />V •Wi <br />. H ' <br />wm <br />.1 <br />Pv ' ‘ ■ v"•rf,; <br />mh:m <br />‘ -wU.'.