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HomeMy WebLinkAboutWPO201100006 Review Comments Stormwater Management Plan 2011-02-16� DF ALg� �IRGINIP COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902 -4596 Phone (434) 296 -5832 Fax (434) 972 -4126 Project: Stone Robinson Elem Parking and Drop -off (SDP201100007, WP0201100006) Plan preparer: CRAIG.KOTARSKI @TIMMONS.COM [fax 434 - 295 -8317] Owner or rep.: County of Albemarle School Board [fax 434 - 975 -9341] Plan received date: 8 February 2011 Date of comments: 16 February 2011 Reviewer: Max Greene Site development plans for "Stone Robinson Elementary School Parking and Student Drop -off' has received Engineering review. The plans can be approved after the following items have been adequately addressed. 1) Minor Site Plan (SDP201100007) a) Please label the State road. [18- 32.5.6.i] b) The new 8 bus loading and unloading area does not appear to be safe or convenient. Appears buses will have to back up prior to loading and unloading elementary school children. Please rethink the traffic pattern and flow design so that no backing up is required of the buses. c) Parking space (lowest of 3 in island, first shown on page C3.0) appears to require a bumper block so cars will not hang over into travel way. Please adjust or remove the parking space. d) Please show and label existing edge of pavements and curb and gutters on plan sheets. 2) Stormwater Management and Mitigation Plan (WP0201100006) a) Sediment forebay is required at each inflow point into SWM structure. Please show forebays as required by Virginia Stormwater Management Handbook. [VSMH Vol. 1 page 3.041 b) Please clarify parking area turn- around above Bio- filter. Appears to be just edge of pavement. Please show protective devices to prevent automobiles from rolling into bio- filter. Bollards or guard railing disguised with vegetation is recommended. 3) Erosion Control Plan (WP0201100006) a) Narrative does not appear complete according to VESCH. (examples: only one side of adjacent property is described, size of disturbance, soils description, culvert inlet protection is not shown on plan view) b) Construction entrance detail will be changed to Albemarle County Temporary Construction Entrance detail: http:// www.albemarle.org/upload/images /forms_ center /departments /community deyglop Engineering Review Comments Page 2 of 2 ment/forms /design_standards _ manual/Albemarle County Design Standards Manual 02 - 12- 2010.pdf c) Sediment trap should be constructed to the largest size required at the beginning of the project. Phasing does not appear necessary for this project as the removal of topsoil and silt fence sloping down grade will direct stormwater into perimeter control structure. Once these comments have been addressed, please submit 2 copies of the revised plans, calculations, and narratives to Current Development Engineering. Current Development Engineering is available from 2:30 -4 PM on Thursdays to discuss these review comments. Please contact Max Greene at 434 - 296 -5832 ext. 3283 or email mgreene @albemarle.org to schedule an appointment. File: El_,esc,swm,fsp_MRG_Stone Robinson Elem Parking & Drop Off.docx