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ARDEN HILLS CITY COUNCIL WORK SESSION—OCTOBER 11, 2010 4 2.A Mn/DOT I-694 Improvement Project—Municipal Consent Discussion (continued) Mayor Harpstcad reiterated that at the end of the day, the Council wanted what was best for the City of Arden Hills and its residents. This meant the Council had to provide comments with these interests in mind. Councilmember Holden indicated WDOT was aware of the Council's concerns and felt the City should hold to these concerns. Mayor Harpstead stated Mn/DOT was well aware there was an engineering design flaw for this region. Mn/DOT did not have a solution to meet the local and regional needs of this area. Councilmember Holden requested the Council talk through each of the Conditions further. Mayor Harpstead first reviewed Condition 10 with the Council regarding the completion of _ County Road E in conjunction with this project. The concern with this suggestion would be the loss of any east-west connection in the City. Councilmember Grant felt Condition 1 should be stated more strongly to assure that Mn/DOT was addressing the decibel level increases for the surrounding residents. Councilmember Holden suggested the City confirm with Mn/DOT the City's ability to contribute to the expense of sound walls to make up for the deficit in the allowance, as their rates have not been raised in over ten years. Councilmember McClung indicated the figures $3250 per decibel for the past ten years did need to be updated. In addition, the City should take the position that noise mitigation needs to be included in this project. Councilmember Holmes stated Man/DOT was willing to pay$1.5 million for noise mitigation. Public Works Director Maurer indicated the noise analysis completed by Mn/DOT determined reasonableness in the northwest quadrant of I-694 and Highway 10. This area would be protected with a 20 foot high noise wall. However, the $1.5 million set aside for the noise mitigation may not cover this expense. The City would need to discuss who would cover the difference. Councilmember McClung stated whether noise berms or sound walls, the City needed to protect the neighboring properties from the growing freeway noise. Mayor Harpstcad requested staff draft additional language stressing the importance of sound walls/mitigation noting that fill generated on site be used for a noise berm. Councilmember Holmes requested the noise berm location be officially located on the plans by Mn/DOT. Mayor Harpstead questioned how the Council would like to proceed with the traffic modeling.