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ARDEN HILLS CITY COUNCIL WORK SESSION-AUGUST 10, 2009 2 information noting there would be a pedestrian access along CR 96 Under Highway 10. Councilmember Holden questioned if there would be a pedestrian crossing over 35W. She explained there currently was no access to Long Lake Regional Park and needed a connection. Mr. Chromy ran through the design restrictions to mitigate noise impacts to residential areas south of CR 96. He explained the grade separation increased the concern of rising noise in the area. This could be reduced through noise walls, landscaping and/or paving. Mr. Chromy stated that at this time, the studies are showing no need for noise mitigation but that the City was concerned about the Briarknoll neighborhood. Staff reviewed alternative options for a noise barrier, which range in cost from $160,000-320,000. He indicated that another option would be additional berming. Discussion ensued regarding the Briaknoll neighborhood, as well as other neighborhoods that would be affected by an increase in traffic noise. Councilmember Holden questioned what the estimated decibel drop would be with the asphalt and sound wall. Mr. Chromy indicated the normal drop in noise level would have to be three or more decibels to be noticeable. He explained there was a perceived change that asphalt leads to a reduced noise level, but wasn't sure of any exact numbers. MnDOT may have more information on this topic. Councilmember Grant questioned the commitment from MnDOT to pave this stretch. Civil Engineer Giga explained that MnDOT sent a letter to the City indicating this roadway was slated for 2011. She noted there were not specific dates but that it was in their budget. Civil Engineer Giga indicated that Ramsey County was willing to work with the City if the City chooses to move forward on the berm and that they were already coordinating with MnDOT.