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Hennepin Conservation District <br />MEMORANDUM <br />TO: <br />John Waldron <br />FROM: <br />James Piegat, Ph. D. <br />DATE: <br />14 August, 1987 <br />SUBJECT: <br />Repairing Erosion Damage <br />Enclosed is are some general recommendations about repairing damage caused <br />by rains earlier this month. Naturally, there may be F_dditional concerns on a site - <br />by -site basis. <br />Solution of lakeshore problems should begin at the shoreline. Stabilize the shore <br />and then work upslope. Retaining walls needed for structural support should be <br />designed by an engineer. Such walls should be supported by both tie -backs and <br />vertical posts. <br />Prevention consists of controlling surface runoff and ground water seepage. <br />Subsurface drains should be placed behind all retaininro walls and at the toes of all <br />regraded slopes. <br />Please contact our office if you have any further questions. We would be happy <br />to discuss particular solutions with your contractor, if you see the need. <br />70S i ,dW Plata PAdq 124'>o Wayzata R* ulevard Minnvtooka M+nne"a 55343 Teiepho-to (CA2) 544-8572 <br />