Agenda - Council - 08/24/2010 - Laserfiche WebLink

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Proposed Draft MRCCA Standards The following standards apply corridor -wide, unless specified otherwise. Sheet 5b: Facilities Prepared by Minnesota Department of Natural Resources, August 5, 2010 Standard Draft Standard Narrative Private roads, driveways, and parking areas must be designed to take advantage of natural vegetation and General topography to achieve maximum screening from view from the river or the OHWL of the opposite shore. They must Design be designed and constructed to minimize and control runoff and erosion to public waters consistent with Minnesota Stormwater Manual and Protecting Water Quality in Urban Areas Roads, driveways, parking areas must meet structure setbacks and must not be placed on bluffs or within slope Placement preservation zones (SPZ) or shore impact zones (SIZ). Private Roads, Private Roads Low-volume private roads or privately maintained roads shall have pavement widths of < 22 feet. Driveways & Parking areas with > 10 spaces or > 3,000 square feet must be designed to permanently treat 1" of runoff from the Parking Areas impervious surfaces created. Preference must be given to volume reduction techniques. Runoff reduction may be Private accomplished through use of soil amendments, infiltration, bioretention, permeable pavement, rain gardens, Parking Areas enhanced swales, disconnected impervious surfaces, or other LGU-approved reduction techniques. If the runoff reduction standard is not physically possible due to physical characteristics of the site, mitigation will be required A private watercraft access ramp and associated access path may be allowed within the shore impact zone provided Private Water the requirements of chapter 6115, the buffer standards, and erosion and stormwater control standards are met. The Access access path must not be placed on a bluff or within the SPZ. Design for public roads, rail lines, trails, and recreational facilities must preserve or enhance vegetation and topography when reasonable and consistent with the purpose of the facility to aid in screening of these areas from Screening view from the river and the OHWL of the opposite shore. Public Transportation & Public roads, rail lines, and non -water -oriented structures including parking & other impervious areas must meet Recreational Setbacks structural setbacks and must not be placed within shore and slope preservation zones when there are reasonable Facilities placement alternatives exist, consistent with the purpose of the facility. Water -oriented parking areas and approach roads must not be placed on bluffs or within the SIZ and SPZ when other Water reasonable and prudent placement alternatives exist. Water -oriented facilities, ramp approach roads, and access Oriented paths may be placed within the SIZ and SPZ if construction methods are consistent with the most applicable best Parking Areas management practice standards or guidelines. Prepared by Minnesota Department of Natural Resources, August 5, 2010