05/26/1998 Council Packet - Laserfiche WebLink

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MAY. -20' 98 (WED) 14:32 Planning & Zoning Board May 13, 1998 Page 3 10000 0000000000(***** TEL:612 421 9511 P. 003 Ms. Wyland explained that the difference in homes regarding R -1 and R -1X is total square footage and split foyers. The minimum square footage for R -1 is 980'. The minimum square footage for R 1X is 1,248'. Ms. Wyland pointed out that the square footage requirements referred to the outside dimensions, exclusive of a garage. Mr. Dunn noted that most homes in this area are zoned R -Xl. Mr. Sampair indicated that Collova Builders can meet the R -X1 requirements. He believes that Collova Builders has done a good job meeting all the requirements the Planning and Zoning Board has specified. He thanked Ms. Wyland and the neighborhood for all of their help and input. Mr. Ahrens, City Engineer, expressed concerns regarding the drainage and asked the project engineer to address this issue. Roger Nelson, project engineer, referred to a map that specified the site location. He stated that the existing streets were in good shape, having no curbs or ditches. He indicated that drainage is currently a problem, especially in the spring. He is proposing a natural high point on Linda Avenue and improving the ditch by making it deeper, going west to south with a culvert under the driveway. Chair Schaps asked if that was the present flow of the drainage. Mr. Nelson stated that basically it was, with overflow occurring in the spring. On the other side they would improve the ditch resulting in direct drainage south to the existing wetland. The internal drainage would be improved by enlarging the pond and creating a new pond to accommodate increased run -off. Mr. Johnson asked where the water would flow after it left the site. Mr. Nelson indicated that the overflow would flow along a ditch running east and trail southward with a culvert. It would connect to a large basin under Lorraine Avenue to the west and then into a County ditch and end up in Baldwin Lake. Mr. Johnson asked where flooding problems were most likely to occur. Mr. Nelson stated that flooding could be a problem in the intersection, but would not affect any homes. He noted that the one home next to the pond currently has a problem with water on the lawn. Mr. Corson questioned when the flooding would occur. Mr. Nelson said that anything beyond a 100 year storm would flood. Mr. Trehus asked how much additional run-off will be generated due to the new homes. Mr. Nelson explained that approximately 6,000 cubic feet of additional nun -off would occur. Mr. Trehus inquired about creating a storage area on site. Mr. Nelson stated they excavate the site and area of ponds and keep the bottom of the excavation slightly above the pond level. He advised they took credit for any new storage created in the pond areas.