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5.4 The cul-de-sac circle is proposed with a 28 foot drive lane in a 100 foot diameter with a landscaped island. Staff is not opposed to this concept; however, modifications appear to be necessary. A larger radius at the west curve, a tear drop island, and the relocation of the driveway of unit 15 should be designed. 5.5 The roadway design also has an entry island. The island should be e�tended to the property line. 5.6 Drainage problems exist in the neighborhood and have been eliminated or reduced by the developer's drainage/grading plan. The e�sting parcel drains to the north, northwest and south. Drainage for the parcel upon development is proposed to match existing contours along the periphery, except on the western edge adjacent to the proposed storm water management pond. The grading/drainage plan for this development will require the approval of the Rice Creek Watershed and the Roseville Engineering Department. Based on the proposed grading plan there will be 12 lookout townhome units and 10 walkout townhome units. 5.7 City sanitary sewer and water mains will be extended from County Road B within the proposed looped roadway, with individual service connections to each residential lot. 5.8 The General Concept Plan included varying setbacks for the structures in the Stonecrest development. These varying setbacks are still a component of the Final Development Plan, but some have been modified (increased) to address Council suggestions and resident comments. The proposed setbacks are the distance separation of a principal structure (including an attached garage) to the street right of way line or an adjacent property line. Front Yard Setback • Units 1— 7: setback of 21 feet • Unit 8: setback of 21 to 25 feet. ■ Unit 9- 14: setback of 38 feet. ■ Unit 15 - 20: setback of 21 feet ■ Unit 21 & 21: setback of 30 feet from County Road B. ■ Units 1— 6 and 15 20 could experience an increased setback with a decreased street design width. Rear Yard ■ Units 1�- 8: 46 feet to principal structure and 36 feet to deck/patio. � Unit 9: 86 feet to east property line & 82 feet to north property line from principal structure; 70 feet from east property line & 85 feet to north property line for deck/patio. ■ Unit 10: 82 feet & 58 feet from north property line for principal structure; 65 feet & 64 feet to north property line for deck/patio. ■ Units 11: 40 feet & 48 feet from north property line for principal structure, 32 feet & 36 feet from north property line for deck/patio. ' Unit 12: 48 feet & 58 feet from north property line for principal structure, 4lfeet & 45 feet from north property line for deck/patio. PF3417 — RCA Final Development Plan 093002 Page 3