Agenda - Council - 01/09/2001 - Laserfiche WebLink

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! ! I I I I I- I i I I I I I I I I I I Site Plato Review: Orchard Hills Page 2 of 5 December i, 2000 Revised January, 3, 2001 Building Code requires owner/occupant structures to maintain a 10 foot separation. It appears that the proposed townhome structures meet this requirement. The site plan should be revised to include dimensions from structure to structure at their closest point to verify compliance with Uniform Building Code. 5. Density: The site plan is proposing to construct a total of 42 townhome structures on the property. This equates to a gross density of 4.2 units per acre and a net density of 4.4 ugits per acre (net density is calculated by subtracting Outlot A). The current comprehensive plan targets this area for medium-residential development which is established at 7 units per acre and the draft comprehensive plan targets this property for high-density residential development and high-density development has been defined at a maximum of 7 units per acre. 6. Access: This site plan proposes constructing Barium Street, Cobalt Street, and 152~d Lane (the east/west street labeled as Barium Street on the submitted plans) as public streets which connect to Barium Street and Cobalt Street in the Willow Ridge subdivision to the south. These streets must be constructed to current City standards. It is also proposed that Cobalt Street be connected to the existing north/south private drive which currently provides access to Bill's Superette. The access plan is acceptable and the private drive will be dedica.ted as a public roadway which would be named Cobalt Street. Grading and Drainage: The development is proposed to be drained utilizing an existing storm sewer which presently lines beneath what will be the east/west portion of Barium Street (which should be renamed 152nd Lane consistent with the County grid) and by new storm sewers to be placed beneath the extensi6ns of Cobalt and Barium Streets. The drainage also includes three ponds. A General descPiption of the drainage for the development is as follows: Pond 1 accepts the overland drainage from the rear yards of the six units on the east side of Barium Street. Drainage from the southernmost seven units on Cobalt Street will drain overland onto Barium Street and into catch basins on the south edge of the plat. Flow is to be transmitted to the storm sewer located within Highway #47. Drainage from the remaining 23 units on Cobalt Street will flow overland, southward down Cobalt Street and be transmitted by a storm pipe located approximately 150 feet north of the southern boundary of the plat to Pond 2 located within the southeastern most corner of the development2 Pond 2 will also accept drainage from the rear of the units on the east side of Cobalt Street and their backyards. Overflow from Pond 2 will be discharged into the same storm sewer that flows into the Highway #47 storm system: Drainage from the units fronting on Barium Street will drain overland and via storm sewer to the e>dsting storm sewer located in Barium Street (152"u Lane) This storm sewer currently discharges to a pond located south of the development. This discharge will be redirected to discharge into Pond 3 which wilI be located Lmmediately east of the units on the east side of Barium Street. Overflow from Pond 3 will discharge to -253-