PC Packet 06.28.18 - Laserfiche WebLink

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The Preserve on Sunset Lake- Sketch Plan Page 4 Building Materials/Design The applicant did not provide building elevations, proposed materials, or architectural covenants at this time. These items would need to be reviewed as part of the preliminary plat application. Wetlands The site contains approximately 15 acres of high quality wetlands that are part of the preserved open space. There are additional small wetland pockets located along the northeast of the site located along Sunset Lake. The wetlands were delineated within the site and the Technical Evaluation Panel (TEP) approved the delineation in 2005. With a preliminary plat, the applicant will need to update the wetland delineation with the TEP since it has been over five years since the approval. The applicant will need to work with the TEP and the City Water Resources Engineer as the project moves forward to obtain any necessary permit(s) if wetland impact or mitigation is proposed with the development. Floodplain A portion of the property is located within the floodplain district. The floodplain is located entirely in the open space and is classified as Zone A special flood hazard area by FEMA. Zone A floodplains do not have an established base flood elevation. No improvements are shown in this area. Shoreland The adjacent Sunset Lake is a DNR protected water body. The shoreland overlay boundary extends 1,000 feet from the ordinary high water level of the lake. There are some lots along the east side of the proposed road that are within the boundary. The minimum lot size is 40,000 square feet and minimum lot width is 150 feet in the shoreland district. The proposed single family homes must not exceed 25 feet in height. The proposed lot dimensions comply with all shoreland district requirements, with the lot width measured at the front setback line. Grading/Drainage The applicant is proposing to utilize swales, culverts and ponding for stormwater management. The applicant is showing a stormwater pond between Lots 1 and 2, Block 1. There were no drainage calculations to show if the pond would meet City requirements for storm water management. The applicant will need to work with the City Engineer on their stormwater management plan for the development. The applicant will need to meet all City stormwater management requirements, including appropriate storage, rate control, treatment, and volume reduction. With a preliminary plat, the applicant will be required to submit a grading plan for the development. The applicant will need to show that each building pad will meet the low floor separation requirements from the ground water elevation and the floodplain elevation.