Laserfiche WebLink
Engineering Evaluation <br />Mining cannot be performed within 200-feet of a structure unless an engineering evaluation is <br />made that demonstrates the structures will not be damaged by the proposed operation. <br />Dr. Michael DeJohn owns a fence that touches the north line of the permit boundary. There aze <br />two fences located on the south line of [he permit boundary, one barbed wire and the other an 8- <br />foot high game fence. The game fence is owned by Tom Farmer. The bazbed wire fence is owned <br />by Tom Farmer and adjacent property owner Allen or Williams depending on the location. <br />Mining will be performed within 200-feet of these fences. A buffer zone equal to 3 times the pit <br />depth will be provided while mining the steep but stable advancing side slopes adjacent to these <br />fences. This buffer zone can be reduced to a 3H:1 V slope at any time. The net result of this <br />buffer zone is there is always the equivalent of a 3H:1 V slope between the active pit and the <br />fences. <br />The reclamation plan shows the pit side slopes have a final slope of 2.SH:1 V. The disturbance <br />boundary is 25-feet from the DeJohn fence and the fences along the south line of the permit <br />boundary. Combining a 2.SH:1V slope and a 25-foot offset yields and effective slope of <br />3.33H:1V fora 30-foot deep pit. <br />There aze fences within 200 feet of the disturbed areas associated with [he access road and the <br />access road abuts County Road 37.00. There will not be any excavation associated with the pit <br />access road. Therefore, there will not be an excavation to undercut or create an unstable cut slope <br />adjacent to these fences or County Road 37.00. <br />I, J. E. Stover, P.E., have a wide variety of experience in design and construction activities <br />including evaluation of the stability of cut and fill slopes which is applicable to gravel pit <br />activities. <br />Based upon my evaluation of the proposed operation, it is my professional opinion the 3H:1 V <br />slopes will protect the fences adjacent to the active pit. Furthermore, the structures adjacent to the <br />pit access road will not be damaged by the operation b~~a~od~re will not be an excavation to <br />create an unstable slope adjacent to the fences or Cit~,~2e~fl' . <br />a <br />o i~ 2c/ a <br />;s E. <br />No. <br />12/02 S - 2 <br />