Agenda - Planning Commission - 08/03/2006

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Mississippi River. The storm sewer in West Ramsey Parkway, the nearest pond and outlet have not been constructed. A temporary treatment pond sized for the discharge from this portion of the site will be required.. The pond can be removed when the regional improvements are constructed. The pond must provide rate control for the 1 and 100 year storm ,events. If the existing grades will not support and outlet then the pond must be sized to hold back to back 100 year storm events without discharge. The 6" DIP pipe must be class 53. Please submit a revised grading and drainage plan that shows the construction of a temporary pond. Landscaping Plan: The following comments are offered regarding the landscaping plan dated July 11,2006: . . . Additional landscaping, in the form of trees, shrubs, perennial. grasses, berming, and fencing will be required along both Armstrong Blvd and West Ram.3.ey Pkwy as specified below: -.;;.. o A minimum of at least six (6) trees need to be added along Armstrong Blvd. Trees installed in this area must have at least a moderate tolerance to deicing salts. Suggestions include Ohio Buckeye' Autumn Splendor', Hackberry, and American Elm 'Discovery'. Trees should not exceed a spacing of thirty-five (35) feet on center. o Additional shrub species, as well as small clusters of perennial grasses, should be interspersed with the Glossy Black Chokeberry plants along Armstrong Blvd and be added along West Ramsey Pkwy. Shrub suggestions include Dwarf Bush-Honeysuckle, RoundleafServiceberry, and Jackmann Potentilla. o Berms should be integrated into the areas along both Armstrong Blvd and West Ramsey Pkwy to better defme the pedestrian corridor. o The decorative fencing along Armstrong Blvd should be unbroken (with the exception of where the east-west sidewalk connects to the trail) and be continued along West Ramsey Pkwy as well. Please provide pictures of proposed fencing for Staff review. o Wood chip mulch should be used in place of rock mulch. Landscape block or equivalent should be used to prevent mulch from spilling out onto the trail. . Trees installed for parking lot landscaping requirements must have a minimum planting area of 162 square feet. The two green islands in the southwest comer of the site must be expanded to meet the minimum planting area requirement and the size, in square feet, must be noted on the plan for verification. . Underground irrigation is required for all landscaped areas and must be noted on the plan. . Shrubs shall be at least twenty-four (24) inches in height or width, dependent upon a species' growth characteristics. The Hydrangea, Juniper, and Yew shrub sizes must be increased. . Planting depth shall be such that the root flare is at grade level. Please submit a revised plan to address these concerns. 33