Agenda - Council - 06/25/2002 - Laserfiche WebLink

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-138- Final Plat Review: Highlands At River Park 2"a Addition June 20, 2002 Page 2 of 4 As mentioned at the time of preliminary plat approval, all swales must be protected with drainage and utility easements. Cross drainage or drainage swales have been observed on Lot 16, Block 2 and are outside of the drainage and utility easements. This must be corrected and resubmitted. A temporary cul-de-sac must be constructed at the end of 155~ Lane NW. This temporary cul-de-sac must have an easement sufficient in size to accommodate snow storage and will expire upon final plat approval for the 3rd addition. 4 Gradi. ng, Drainage and Erosion Control Plan: In an effort to continue with grading into the Third Addition, the Developer has submitted the Final Grading Plan for both additions to balance the soil on site. Tke following comments are general in nature and are relevant to both submittals. The approval of the final grading plans on the Third Addition does not constitute approval on anything but grading activities. All,pipe and utility construction will be considered at the tkne of final plat approval ~br the 3"° Addition. However, any storm sewer pipe needed to facilitate the grading activities for the 3rd addition must be installed at the Developer's risk to protect e,,dsting homes. Additionally, the Developer will be required to put up a letter of credit sufficient in size to complete the required storm sewer improvements. This letter of credit must be large enough to cover the cost of construction and land acquisition unless a separate recordable document is prepared dedicating the easements necessary to facilitate the construction of the storm sewer pipes proposed on the Grading Plan for the 3rd Addition. The letter of credit must also be sufficient in size to account for complete turf establishment on the site with 4 inches of topsoil and seed. Any grade changes necessary during final plat approval will be done at the Developer's expense. Critical elevations and or change of slope elevations must be shown on each lot on the final grading plans. These breakpoint elevations are necessary to evaluate the City Code requirement of lots with less than 2% providing a Certificate.of Grading prior to the issuance of a Certificate of Occupancy. These elevations shall be shown On the revised final grading plan and this requirement will be reevaluated. Any tots not meeting the 2% requirement shall be designated as needing a Certificate of Grading. The following comments are specific to the Grading, Drainage, and Erosion Control Plan for the 2na Addition prepared by Westwood Professional Services and dated May 17, 2002. · Provide a detail of SOG on Sheet 3 of 4. · Outlet between Lots 4 & 5 should be moved to between Lots 5 & 6 to min/mize pond short circuiting and opposite bank erosion potential. Another option would be. to add an additional structure and redirect the flow to the south. ° Incorrect comer lot elevation on the southwest comer of Lot 2, Block 1. · Incorrect 878 contour on Lot 8, Block 2. The following comments are specific to the Grading, Drainage and Erosion Control Plan submitted for the 3rd Addition prepared by Westwood Professional Services and dated May ! I I I I' I I I I I I I I I I I I