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Prepared by Minnesota Department of Natural Resources, November 5, 2010
<br />Standard
<br />Type
<br />Preliminar Draft Standard
<br />y
<br />Executive Order 79 -19
<br />Current Standards &Guidelines
<br />(Currently in effect; all local pions and ordinances must be consistent with these
<br />standards and guidelines.)
<br />Interim Development Regulations (IDR)
<br />(EO 7319 provided the IDRS as temporary standards until focal
<br />MRCCA ordinances were approved by the EQB. Hastings, Brooklyn
<br />enter,° ndasmanoreomHennepmcoanryorescnrsah /ectrame
<br />DRS because they do not hove approved MRCCA ordinances The OUR
<br />used some of the IDRS in drafting new MRCCA rules, and some LGUs
<br />have used portions of the IDRS in their current ordinances. The IDRS
<br />are provided here for reference. Local ordinances, which vary widely,
<br />will contain the current effective standards in any given community.)
<br />Grading,
<br />Filling &
<br />Erosion
<br />Control
<br />Shore impact
<br />Zone (SIZ)
<br />Within the shore impact zone (SIZ), grading, filling & disturbance of >10 cubic
<br />yards of material or an area >250 square feet requires a permit from the LGU.
<br />Grading, filling and and disturbance activities must comply with the standards
<br />provided in the National Pollutant Discharge and Elimination System permit for
<br />Construction Stormwater. Exceptions are provided for emergency situations (as
<br />determined by the LGU) and restoration projects sponsored or approved by a
<br />resource agency or LGU.
<br />C.1. Each local unit of government within the river corridor shall prepare plans
<br />and regulations to protect environmentally sensitive areas in accordance with
<br />the following guidelines.
<br />a. Each local unit of government shall, with the assistance of the Metropolitan
<br />Council and state agencies:
<br />(6) Prepare plans and regulations to minimize site alteration and for
<br />beach and riverbank erosion control;
<br />C.2. a. Site Plans. Site plans shall be required to meet the following guidelines:
<br />(1) New development and expansion shall be permitted only after the
<br />approval of site plans which adequately assess and minimize adverse
<br />effects and maximize beneficial effects.
<br />(3) Site plans shall include, but not be limited to, the submission of an
<br />adequate and detailed description of the project, including activities
<br />undertaken to ensure consistency with the objectives of the
<br />Designation Order; maps which specify soil types, topography, and the
<br />expected physical changes in the site as the result of the development;
<br />the measures which address adverse environmental effects.
<br />(4) Site plans shall include standards to ensure that structure, road,
<br />screening, landscaping, construction placement, maintenance, and
<br />storm water runoff are compatible with the character and use of the
<br />river corridor in that district.
<br />E. Earthwork and Vegetation
<br />1. In all districts, the following provisions shall apply to
<br />grading and filling:
<br />a. Grading, filling, excavating, or otherwise changing the
<br />topography landward of the ordinary high water mark
<br />shall not be conducted without a permit from the local
<br />authority. A permit may be issued only if:
<br />(1) earthmoving, erosion, vegetative cutting, and the
<br />destruction of natural amenities is minimized;
<br />(2) the smallest amount of ground is exposed for as
<br />short a time as feasible;
<br />(3) temporary ground cover, such as mulch, is used and
<br />permanent ground cover, such as sod is planted;
<br />(4) methods to prevent erosion and trap sediment are
<br />employed; and
<br />(5) fill is established to accepted engineering standards.
<br />b. A separate grading and filling permit is not required for
<br />grading, filling, or excavating the minimum area
<br />necessary for a building site, essential services, sewage
<br />disposal systems, and private road and parking areas
<br />undertaken pursuant to a validly issued building permit.
<br />Bluff Impact
<br />Zane (BIZ) &
<br />Slope
<br />Preservation
<br />Zone (SPZ)
<br />Fill, excavation, grading, and other and disturbing activities will be prohibited
<br />within the BIZ and SPZ with specified exceptions identified in Sheet 2 and for
<br />slopes created as a part of an extractive use.
<br />Erosion &
<br />Sediment
<br />Control
<br />Required
<br />Temporary and permanent erosion and sediment control shall be required for any
<br />activity that disturbs a total and surface area of 3,000 sq ft or more.
<br />Temporary and permanent erosion and sediment control measures shall be
<br />consistent with Protecting Water Quality in Urban Areas Minnesota Pollution
<br />C.2. b. Structure site and location shall be regulated to ensure that riverbanks,
<br />bluffs and scenic overlooks remain in their natural state, and to minimize
<br />interference with views of and from the river, except for specific uses
<br />requiring river access.
<br />e. Existing Development. Local plans and regulations shall include
<br />provisions to retain existing vegetation and landscaping.
<br />1. Administration
<br />1. Local units of government and regional and state agencies
<br />shall notify the Council of the following types of proposed
<br />development within the Mississippi River Corridor:
<br />e. Any development on or involving the alteration of:
<br />(4) a slope of greater than 12 percent;
<br />(5) the removal of 5 contiguous acres or more of
<br />vegetative cover;
<br />(6) the grading or filling of 20 contiguous acres of land;
<br />(7) the deposit of dredge spoil;
<br />(8) more than 50 linear feet of a riverbank.
<br />h. Any development which would result in the discharge of
<br />water into or withdrawal of water from the Mississippi River
<br />which would require a state permit.
<br />Control Agency (2000), and as subsequently amended.
<br />Rock Riprap
<br />&Retaining
<br />was
<br />Above the OHWL, constructing or replacing retaining walls, rip rap, other
<br />impervious cover used to address an erosion problem, or bioengineering
<br />techniques requires a permit from the LGU and must include design, construction,
<br />and maintenance standards. This permit is in addition to the permit requirements
<br />in the SIZ (above) and is not subject to minimum size exceptions. Rock riprap,
<br />boulder walls and retaining walls shall be used only to correct an established
<br />erosion problem (as determined by a PE, SWCD or WD or person with certification
<br />in erosion control) that cannot be controlled through the use of vegetation, slope
<br />stabilization using mulch, biomat, or similar bio- engineered means.
<br />Preliminary Draft Definitions — Revised November 5, 2010
<br />Development = the making of any material change in the use or appearance of any structure or land including but not limited to: (1) a reconstruction, alteration of the size, or material change in the external appearance of a structure on the land; (2) a change in
<br />the intensity of use of the land; (3) alteration of a shore or bank of a river, stream, lake or pond; (4) commencement of drilling (except to obtain soil samples), mining or excavation; (5) demolition of a structure; (6) clearing of land as an adjunct to construction;
<br />(7) deposit of refuse, solid or liquid waste, or fill on a parcel of land; (8) the dividing of land into three or more parcels. (MN 5tats, 4116G.03(
<br />Bluff Impact Zone (BIZ) = land on and within 20' of a bluff. (For definition of bluff, see Sheet 2)
<br />Shore Impact Zone (SIZ) = land located between the OHWL of a. public water and a line parallel to 50% the structure setback.
<br />Slope Preservation Zones (SPZ) = land on and within 20 feet of a very steep slope. (Includes the BIZ for definition of very steep slopes, see Sheet 2)
<br />Prepared by Minnesota Department of Natural Resources, November 5, 2010
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