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ONSULTING GROUP, INC. <br /> <br />Transportation · Civil · Structural · Environmental · Planning · Traffic · Landscape Archi.lecture, Parking <br /> <br />SRF No. 0024498 <br /> <br />April 29, 2002 <br /> <br />Mr. Steve Jankowski, P.E. <br />Mr. Brian Olson, P.E. <br />CITY OF RAMSEY <br />15153 Nowthen Boulevard NW <br />Ramsey, Minnesota 55303 <br /> <br />SUBJECT: <br /> <br />NOISE MITIGATION .4aNALYSIS FOR WILDLIFE SANCTUARY 2ND AND 3RD ADDITION <br /> <br />Dear Mr. Jankowski and Mr. Olson: <br /> <br />The purpose of this letter is to present traffic noise analysis results, assess the effectiveness of <br />noise mitigation measures and suggest a reasonable noise mitigation scenario for the Wildlife <br />Sanctuary 2nd and 3rd Addition developments. <br /> <br />The Wildlife Sanctuary 2nd Addition is located along the west side of TH 47, across from <br />156th Lane Northwest. Approximately 550 feet of this development borders the TH 47 right-of- <br />way. The development includes four single-family residences located adjacent to TH 47. These <br />first row homes are located within 80 to 120 feet of TH 47. <br /> <br />The Wildlife Sanctuary 3rd Addition is located along the west side of TH 47, south of <br />156th Lane Northwest. A large wetland lies between this development and the TH 47 right-of- <br />way. The development includes I3 single-family residences located across the wetland, more <br />than 300 feet west of TH 47. <br /> <br />Noise Analysis <br /> <br />Traffic noise impacts were assessed by modeling noise levels at' residential receptor sites likely <br />to be most affected by TH 47 traffic noise. The noise analysis completed for the 2nd Addition <br />analyzed the row of homes adjacent to TH 47 (represented by receptors R-l, R-3 and R-4). In <br />addition, the second row of homes west of TH 47 were modeled and are represented by receptors <br />R-2 and R-5. Receptor locations are shown on Figure 1. <br /> <br />The noise analysis completed for the 3rd Addition analyzed the eastern~most row of neTM homes <br />(represented by receptors R~6 through R-10), as shown on Figure 2. These noise-modeling <br />receptors were selected to represent outdoor areas most sensitive to potential traffic noise <br />impacts. <br /> <br /> One Cartson Parkway North, Suite 150, Minneapolis, MN 55447-4443 <br />Telephone (763) 475-0010 · Fax (763) 475-2429 · http://www, srfconsulting.com <br /> <br />An Equal Opportunity Employer <br /> <br /> <br />