APRIL 2, 2007SHAWNEE PLANNING COMMISSION MINUTESPAGE 33
Energy dissipation and permanent erosion control measures appropriate for the proposed discharge velocity must be provided at the outlet of the private storm sewer system.
A temporary curb and gutter must be provided on the east side of the parking lot between the first and second construction phases.
The applicant is responsible for submitting a final storm drainage plan as an integral part of the site development plans to be submitted for a building permit.
12.The applicant is responsible for submitting an impervious area plan prior to completion of the site improvements. A printed copy of the plan must be submitted together with an electronic copy in AutoCAD© format, using coordinates based in the Kansas North State Plane Coordinate System of 1983, North Zone (NAD-83), to the City’s Stormwater Manager. The plan must accurately depict the limits of all parcels that comprise the development site and indicate the applicable Johnson County parcel identification numbers. Use crosshatching for existing impervious areas and halftone shading for proposed impervious areas. All existing and proposed impervious areas must be summarized in a table by parcel number including the proposed total impervious area per each parcel.
13.The site is not subject to the provisions of SMC Chapter 12.24, which pertains to the construction and maintenance of on-site stormwater detention facilities. When the subdivision was approved in 1986, the City Engineer determined that no drainage inadequacies existed within 1,000 feet downstream of the site. At that time, payment of a detention fee in lieu of building on-site facilities was not required for a site having free discharge of runoff.
14.The applicant is responsible for scheduling a pre-design meeting with the Development Review Engineer prior to preparing the final site development plans, which must show all proposed public and private site improvements. The public improvements required for this development includes any grading within the public street right-of-way, constructing the commercial driveway approach, and the outlet of the private storm sewer system at the open drainage channel. These public improvements shall be designed according to the standards in the Shawnee Manual of Technical Specifications and Design Criteria. The final site development plans must be submitted to Development Review Engineer for review and approval of the public improvements prior to issuance of any permit.
15.Prior to issuance of a construction permit, the applicant must obtain one or more Public Improvements Permits for all street and storm drainage improvements required for the development site. All public improvements shall be constructed according to the standards in the Shawnee Manual of Technical Specifications and Design Criteria. No