07-15-2002 Planning Packet - Laserfiche WebLink

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City pgh;-of-way or under pavement shall be RCP. There doesn't appear to be any proposed storm sewer to serve properues north of Kelley Parkway. Plans should include stonn sewer provisions for this area. All ponds should meet NURP standards. Ponds should have a 10:1 aquatic bench at the pond's normal water level (l^VL). All ponds should have an outlet structure and provided a minimum of 1-foot of skinuning to remove floatables and debris. Riprap should be provided at all inlets and outlets. Final plans should show plan and profile views of the proposed sewer and include storm sewer details. A drainage area map, storm sewer and ponding calculations should be submitted for our review. It is critical that an effective erosion control plan be included with the final plan set and implemented during construction due to the magnitude of the project and potential offsite impacts. Final plans should be submitted to the Minnehaha Creek Watershed District (MCWD) for their review. 4. StrcetafTrails: Kelley Parkway is a municipal state aid (MSA) road. At a minimum, Kelley Parkway should be designed to meet MSA standards and should provide room for parking or distressed vehicles for both east and west bound traffic. A median could be incorporated into the design to provide a parkway appearance, provide traffic calming and accommodate construction of turn lanes. The design of the connection at Willow Drive should incorporate left and right turn lanes for eastbound traffic. Horizontal and vertical alignments should meet a 30 mph design speed. All streets within the project should have conciete curb and gutter and meet City standards for public or private roads. The proposed turnarounds on the north end of the two private streets north of Kelley Parkway do not appear to be adequate for emergency vehicle turning movements, plans should be submitted to the fire chief tor review and comment. A geotechnical report, R-value recommendation and pavement design should be provided for review. The applicant should anticipate typical street sections that include select granular material and draintile because of the poor soils. The proposed bituminous trail should be extended southerly from Kelley Pa'-kway to TH 12 and along Kelley Parkway to the west boundary of the site. The City should consider whether a bituminous path or concrete sidewalk is appropriate along TH 12 between Willow Drive and the west properly boundary. 5* Traffic: The proposed land uses will generate approximately 5,200 trips per day. We have concerns regarding the intersections at Kelley Parkway and Willow Drive, Kelley Parkway and Old Cry stal Bay Road and at Willow Drive and TH 12. At a minimum we recommend that the applicant commission a traffic study to determine whether improvements are necessary at these intersections. Additional concerns include the spacing of Kelley Parkway from TH 12 and access management along Old Crystal Bay Road. 6. Financial Guarantee: When final plans have been completed we will prepare an estimate of the total cost for the site improvements to determine the amount of the financial guarantee required. The developer will also be responsible for all pertinent City charges including, but not limited to, trunk sewer, trunk water, storm water area charge, and park dedication fees. Please contact me at (651) 604*4863 if you have any questions regarding this matter. Youra very truly, BONESTROO. ROSENE, ANDERLIK & ASSOCIATES, INC. Tom Kelloj Cc; Greg Gappa, City of Orono