CCP 01-11-1999 - Laserfiche WebLink

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l 'V(, 1 1.5.3 Rare, Threatened or Endangered Species Based on the guidelines recommended by the DNR Natural Heritage Program, several mitigation measures will be considered in the site plans to accommodate the potential presence of Blanding's turtles in this area. The following mitigation measures will be incorporated into the proposed plans where feasible: . Silt fence will be installed at the top of the bluff line at the edge of the proposed disturbance zone to keep turtles out of the construction zone. . Roads will be kept to the minimal width required to meet capacity and'safety standards. . Permanent barriers may be used at the road .crossing to.keep turtles off of the new roadway to minimize potential for road kills, These barriers could also be used at the bluff top to keep turtles out of the developed areas if this would further minimize incidental turtle loss due to human activities. . The Rice Creek North wetland complex will be protected from direct road and development runoff via storm water treatment ponds and naturally vegetated buffers. 1.5.4 Water-Related Land Use Management Districts: Shoreland and Floodplain (a) Shoreland Work on and near steepslopes will be minimized, appropriate erosion control measures will be employed and soils will be stabilized with vegetation as soon as possible. Views from the proposed trail and from Rice Creek will be considered in the final design of the proposed development. Native vegetation within the Rice Creek corridor will be left in its natural state to enhance wildlife habitat and protect water quality, (b) Floodplain Floodplain lost to road construction will be replaced in immediately adjacent areas in order to cause no negative impact on flood profiles. A small water quality pond will be constructed within the floodplain near the southerly end of Rice Creek Parkway. The southeasterly portion of the MnDOT property will be excavated to provide additional floodplain replacement. The total volume of new flood storage created will be approximately 12 acre-feet, more than 50% greater than the 7.8 acre- feet lost to roadway construction. Plans for the proposed floodplain replacement must be approved by the Rice Creek Watershed District. 1.5.5 Surface Water Runoff The first mitigative technique is to minimize the amount of impervious area by concentrating development with appropriate landscaping relief and preserving large areas of open space for wetlands, ponds, park and natural slopes. All surface runoff from the proposed project will be collected in a storm sewer system and routed through four storrnwater treatment ponds. Some of the runoff will be treated and diverted into the WISP ARK Rice Creek Corporate Park Draft EIS December 10, 1998 Page 12 I I I I I .. I I I I I I .- I I