02-17-1998 Planning Packet - Laserfiche WebLink

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Zoning File #2326 January 16, 1998 Page 5 H. I. appearance of the building. Additional details should be provided before construction so that staff can confirm these requirements are met. Is there a reason why the trash enclosure is so far removed from the building? Can it be incorporated into the building so it doesnt stand out like a sore thumb facing the residential neighborhood? Drainage. The B-5 Zoning District standards require that drainage plans be submitted for review by the City Engineer and that proper facilities for drainage be provided. Applicant has provided a grading plan which indicates an expansion of the retention pond existing on this site as a result of the Culvers development. Culvers has an easement over applicant's property for the existing pond. The City Engineer has reviewed the drainage plan and notes that the proposed storm sewer lines should be revised, that storm sewer and ponding calculations need to be provided for engineer review, that the storm water pond be provided a 10:1 bench at the normal water level to promote the establishment of aquatic vegetation, and that the drainage plans need to be submitted to the MCWD for review and approval. The entire site is proposed to drain to this storm pond via grading and a series of catch basins and storm sewer lines. Grading. The City Engineer has reviewed the grading of the site and has made a number of comments including: Design grades at some locations in the site are fairly steep which could create problems. - Access and parking lot grades should be revised to not exceed 4%. - Slope along the north and west sides of the site appears to be as steep as 1.5:1 where maintenance of slopes steeper than 3:1 can be difficult. Erosion control materials will need to be used. - The proposed retaining wall at the rear of the building and the storm water pond is over 10' in height in some locations and will require engineered retaining wall design and details for engineer's review. - A fence will be required above that retaining w'all for safety purposes. The topographic condition at this site suggests there will be significant regrading of the site in order to make it suitable for the proposed construction. Staff is concerned that the sloped parking areas and certain driving lanes could be problematic, especially under winter conditions. This should be given additional scrutiny by the applicant to determine whether grades can be modified to be more user friendly. The 10' high retaining wall at the rear of the building may be very stark as viewed from Olive Avenue. 1 see lots of these in Plymouth, and they are not visually