05/14/2014 P&Z Packet - Laserfiche WebLink

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10-foot berm along the easterly boundary of the park activity area, but much of the area remains above daytime noise standards. Note: A 12 foot berm is being constructed along the easterly boundary of 'the park along I-35E. Staff consulted with the MPCA and MNDOT noise specialists and had the following comments: 1. The Traffic Noise Assessment applied certain exceptions to the state rules which brought those noise levels that exceeded standards into compliance; however, it is the opinion of both MPCA and MNDOT those exceptions do not apply to this project. Noise standards for nighttime levels along both I-35E and CSAH 54 exceed the limits. 2. Field monitoring data shall be collected to support the traffic modeling data in the study. 3. The developer/consultant shall provide a cost benefit analysis and documentation for avoidance and mitigation efforts. Factors to be considered include increased setbacks, higher berms and noise wall construction. Whereas full compliance with noise standards is certainly a goal of the City, it may not be achievable. The intent of noise mitigation is to minimize the effects of noise to the greatest extent possible but within reasonable costs and measures. The developer is installing berms and landscaping along CSAH 54 and in the park to minimize noise. The developer shall provide a cost benefit analysis to determine if additional or alternative noise mitigation techniques are feasible. Floodplain The 1982 FEMA Flood Insurance Rating Map (FIRM) indicates the southeast quadrant of the site is located within a designated Zone A flood plain district. Per the Stormwater Management Plan, the 100-year flood elevation is 909.7 which according the RCWD, this would also be the 100-year regulatory flood elevation. A Conditional Letter of Map Revision (CLOMR) shall be obtained from the Federal Emergency Management Agency (FEMA) prior to issuance of any grading permits for land located within the floodplain. A Letter of Map Revision (LOMR) shall be obtained from FEMA prior to issuance of any building permits for lots located within the floodplain. Growth Management Policy Per the Comprehensive Plan (page 3-27), an annual average of 230 units per year over each 5 year phasing period not to exceed 345 units in any 1 year is allowed. At the end of the 5 year phasing period unallocated units will be averaged out over the next 5 years. Con