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In reference to Mr. Buckinghan's question regarding a vegetation barrier, Mr. Orlich <br />said it would be virtually impossible to have a vegetation barrier in Minnesota and <br />explained that a mass is required for energy loss and would necessitate 32 lbs. per <br />square foot, and that trees could not be planted that close together in Minnesota, <br />although it was accomplished in Florida. <br />Craig Herrington, 2076 Terrace Drive asked what the cost of the wall would be. Mr <br />Orlich replied that the cost would be approximately $5 per square foot, with a total <br />cost for the whole project of approximately $250,000, which would include material, <br />labor, landscaping and maintenance. <br />Mr. Pittman asked how much sound would be stopped for Raymond Avenue. Mr. Orlich <br />replied that Raymond Avenue is higher than the surrounding area so that while the <br />tire noise would be cut, the truck noise would not be lessened a great deal. <br />Dale Schobu identified himself as a resident of the trailer park and stated that he <br />would definitely benefit from the noise barrier, as well as all his neighbors in the <br />trailer park. He stated that while he did not plan to be a permanent resident of <br />the trailer park, that whoever bought his trailer from him would also benefit from <br />the barrier. <br />Mr. Buckingham asked how many people were in favor of the barrier. <br />Mayor Pickar replied that both the trailer parks were in favor of it, and that 16 <br />homes were surveyed, of which 8 were in favor of it, 4 were against it, and 4 did <br />not respond or were not available for questioning. <br />Mary Lou Pittman, 5379 Raymond stated that she felt if the noise barrier were put u <br />it would box in the people in the trailer parks and cut off their air circulation. <br />Mr. Orlich replied that concern had been expressed for the trailer park residents, <br />who would be most affected by the barrier so two meetings had been held previously <br />and he had taken copies of the plans to the trailer parks for the residents to <br />examine. He also stated that the noise level would be lowered approximately 10 <br />decibles, which Councilmember Ziebarth pointed out would cut the noise level almost <br />in half. <br />Mr. Orlich stated that the noise level improvement would decrease as a person travelled <br />away from the barrier, but that neighborhood noise also had to be taken into consi- <br />deration and that absolute quiet could not be achieved. He also stated that the <br />reason the barrier was being put up was that it had been ordered by the Minnesota <br />Legislature, and that the Mounds View location was selected as it was found to be <br />one of the areas that needed it most. The noise level there is presently in the <br />mid-70 dPcible level avd the bar rier would lower it t o the mid-60's, <br />Mr. Buckingham asked the feasibility of putting down a layer of asphalt to cut the <br />noise. Mr. Orlich replied that testing had been done across the country and the <br />most the noise level dropped was two to three decibles, and that while the noise <br />seemed to lessen to those riding in a car on the asphalt, it actually did not Jesse <br />the outside noise. Additional research is being done with the asphalt, but it does <br />not stay down on concrete, especially in Minnesota. <br />Mayor Pickar asked what the feasibility was of transparent walls. <br />9 <br />