2018.05.21 CC packet - Laserfiche WebLink

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April 12, 2018 Page 3 the site. Sump pump activation may occur intermittently from April to June when the spring thaw of frozen ground and heavy spring rainfall introduces addition water into the physical environment. During this period, water seepage into basement excavation from saturated native clay material is possible, and surface runoff may find its way into basement." It should be noted that basement sump pump systems are a building code requirement regardless of soil/ground types. With this hydrology study, we have provided documentation/data that supports adjusting the minimum building lowest floor elevations. The existing pond in Prairie Village 4th, adjacent to Oneka Parkway, is proposed to be expanded for fill material and ponding. The existing pond is located on the City's property, Outlot C, Prairie Village 4th. Therefore, request approval from the city for the expansion of the pond on Outlot C. The storm water ponds will be used for irrigation to meet water reuse and infiltration requirements by the city. The grading plans show grading outside the property line in 3 areas. The Developer will work with the adjacent property owners to obtain a temporary construction easement for this work. If no easements can be obtained, then the grading limits will be adjusted to the confines of the project. These types of details are typically worked out prior to final plat submission. The westerly portion of the site contains an existing storm sewer outlet pipe from Prairie Village. An easement was given to the Prairie Village developer to allow for the piping system. This piping system will either be maintained or incorporated with development storm water management system. The existing drainage easement will be petitioned to be vacated and new drainage easement provided with the final plat for Oneka Place. Ol1TLOTS- Since all of the proposed Outlots, contain either wetlands, open space or ponding, they would be dedicated to the city. Outlot H would retain an easement for a neighborhood monument. STREETS. SIDEWALKS AND LANDSCAPING: Four public street access points are available to the site, Ethan Tr., Oneka Parkway, Falcon and Farnham. Three out of the four will be utilized and extended with development of the site. Only Farnham will not be extended. The city may decide to extend Farnham in the future with improvements to the park. We have reviewed potential alternative street extension to the northwest of the site. However, due to existing wetland configuration and lack of utility extension it is not feasible. Access to this would be from Oneka Parkway — see attached conceptual layout. Oneka Parkway will be extended from its current terminus in Prairie Village with a two lane street section without a center landscape median. The street section proposed is the same as Oneka Parkway recently constructed in Clearwater Cove, south of Co Rd 14. The appropriate transition in street section and median configuration will be provided. A 10 foot wide bituminous Trail will be constructed along the eastside of Oneka Parkway. 8 foot wide bituminous trails are proposed along the north side of Ethan Trail N, west of Oneka Parkway, along Street 3, 3