1B, Noise Mitigation Discussion - Laserfiche WebLink

Home Browse Search

EN HILLS MEMORANDUM DATE: February 16, 2010 Item LB TO: Honorable Mayor and City Council Members Sue Iverson,Acting City Administrator FROM: Kristine Giga, Civil Engineer Greg Hoag, Public Works Director SUBJECT: Noise Mitigation Discussion BackLaround At the August 2009, Work Session, the City Council directed Bolton & Menk, Inc. to review noise concerns brought forward by residents in the Briarknoll Neighborhood. This included evaluation of the potential noise reduction effects of a berm south of Royal Hills Park, obtaining input from residents on such a project, as well as reviewing the Interstate-694 Environmental Assessment document to revisit the noise analysis completed along 694 near Norma Avenue and Norma Circle. A neighborhood meeting was held in the field on September 28, 2009, to provide residents information and receive input on potential noise mitigation by constructing a berm south of Royal Hills Park. Response to the construction of a berm south of Royal Hills Park: ■ Some residents responded favorably. The reaction to tree removal was split; some residents understand need for tree removal, while others were concerned. ■ Most of the residents want to know cost and effectiveness. ■ There is concern about a noise funnel effect between the potential berm and a noise wall to the south near Norma Ave Bolton & Menk presented information regarding the potential berm and input received at the neighborhood meeting at the October 12, 2009, City Council meeting. In addition, Bolton & Menk presented additional noise analysis and potential mitigation strategies for homes near Norma Avenue and Norma Circle. The powerpoint presentation is attached for reference. A summary of noise mitigation analysis near Norma Avenue and Norma Circle follows: ■ There are no feasible locations for a berm City Council Worksession \\Metro-inet.us\ardenhills\PR&PW\Engineering\Council_Actions\2010\Worksessions\2-16- I Memo NoiseDiscussion.doc Page 1 of 3