04/19/2014 P&Z Packet - Laserfiche WebLink

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(b) Ponding areas have already been excavated per previous 5th Addition grading. The ponds provide the necessary dead storage volume (calculations below), utilize an outlet structure to control the 2-, 10-, and 100-year storm events, utilize a submerged inlet pipe to prevent migration of floatable debris and oils, and have a stabilized emergency spillway. Two six-plex townhouse units are designated as future. However, the areas have been included in the drainage calculations and analysis below. The stormwater management plan and SWPPP shall be reviewed by the City Engineer, Environmental Coordinator and Rice Creek Watershed District for compliance. Utilities Public water, sanitary and storm sewer utilities will be installed in conjunction with the construction of Robinson Drive. The watermain will also extend south along CR 53 and connect with the existing watermain to loop the system for better fire protection and water quality. Public Land Dedication Staff needs to further analyze the best location of the trails and parkland vacation. Based on the proposed plans, the PUD amendment includes the creation of 11 additional lots and the vacation of approximately 0.545 acres of previously dedicated parkland. The vacated parkland would be used to create 3 additional lots along Robinson Drive. The newly created lots would be subject to the City's Park Dedication fee of $2,500 per lot. Additionally, the City would need to be reimbursed for the value of the land dedication made at the original time of approval. The value of the land dedication at the time of original approval was established at $50,000/acre. Assuming acceptance of this request, the following park dedication requirements would need to be met: 0.545 gross acres — 0.00 acres wetland = 0.545 net acres 0.545 acres x $50,000 (value of land at time of dedication) = $27,250 11 lots x $2,500 payment in lieu = $27,500 TOTAL = $54,750 Note that any wetland on the vacated parkland shall be subtracted from the total area. Only upland can be used to calculate the reimbursement amount. On a separate note, unsuitable soils were used for fill material on approximately 3-4 acres of the dedicated parkland. The owner is responsible for correcting this situation. N.