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, . . <br />' 'rq�r.-� <br />a � <br />�L ~ <br />� � <br />Minnesota Department of Transportation <br />Metropolitan District <br />Transportation Building <br />St. Paul, Minnesota 55155 <br />��� Oakdale Office, 3485 Hadley Avenue North, Oakdale, Minnesota 55128 <br />Golden Valley Office, 2055 North Lilac Drive, Golden Valley, Minnesota 55422 <br />Reply to 593-8538 <br />Telephone No. __ <br />October 28, 1991 <br />Mr. R.W. Morgan <br />2218 West Highway 36 <br />St. Paul, MN 55113 <br />RE: C. S. 6216 & 2783 <br />I-35W & T.H. 36 Commons Area <br />Dear Mr. Morgan: <br />Thank you for taking time to express your concern about the noise levels emanating from <br />the above referenced highway. An acoustical noise survey (see attachment) was conducted <br />at your house on October 25, 1991. The results of the survey are as follows: <br />L,eq <br />L10 <br />Monitored `Noise Level <br />(dBA) <br />65.8 <br />67.5 <br />State and Federal Noise <br />Level Standard <br />(dBA) <br />67 <br />70 <br />As can be seen from the Noise Abatement Criteria sheet, these noise levels are in <br />compliance with Federal Criteria for noise. <br />While monitoring the noise levels, I did notice that empty trucks were making a loud <br />banging noise when they passed over a raised or lowered joint in the pavement. I contacted <br />one of our maintenance supervisors about this problem and he inspected the problem <br />concrete joint. He concluded that Mn/DOT will correct this problem in the near future. <br />♦ ���►� � <br />MINIVESOTA <br />1990 <br />An Equal Opportunity Employer � <br />,` <br />1 <br />� <br />�, <br />