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• LRRWMO Meeting Minutes May 15, 1997 Page 7 LRRWMO Permit #97-06 -Swift Construction - Residential Driveway Construction -Andover The LRRWMO reviewed Obermeyer's memorandum dated May 12, 1997, regarding his review of LRRWMO Permit #97-06 from Swift Construction to construct a home located approximately 3/4 mile north of Constance Boulevazd and west of Hanson Boulevard in Anoka. The driveway for the home is to encroach within a wetland area meeting the requirements of the 1991 Wetland Conservation Act. The ACD has field inspected the delineation of the wetland limits and has made a detemvnation that the driveway will impact 3,400 squaze feet of wetland area. This impact is within the deminimus exemption of the Conservation Act. It was noted plans indicate that a cross culvert will be installed where the driveway crosses the wetland. In discussions with Andover city staff, the city has a minimum culvert size of 15-inches for driveway culverts. It is recommended that the driveway be constructed with a low point that is a minimum of two feet lower than the proposed structure, thereby providing a positive surface overflow. It was also noted the plans indicate that a wetland azea is located to the reaz, west, of the proposed structure. No encroachment is proposed within this wetland area. It is recommended that the builder work with the City of Andover in ensuring the structure is built a minimum of two feet above either the 100-yeaz frequency flood elevation of this wetland area and/or 2 feet above the surface overflow from this wetland area. • Jankowski noted Obermeyer indicates this project meets the requirements of the LRRWMO and recommends approval subject to seven conditions. Motion by Weaver, seconded by Ferguson, to approve LRRWMO Permit #97-06, Swift Construction, residential driveway approximately 3/4 mile north of Constance Boulevard and west of Hanson Boulevard, Andover, subject to the following conditions: 1. The erosion control measures must be constructed at the initial stages of construction and be maintained until all areas altered on the site have been restored. 2. At the entryway on to the site, rock filter dikes being a minimum of two feet in height and having maximum side slope of four to one must be constructed. These rock filter dikes will enable construction traffic to enter the site and also provide an erosion control facility. The rock dikes must be continually maintained during the construction phase of the project. 3. Street sweeping must be undertaken and completed on an as needed basis. 4. Upon completion of construction and restoration of disturbed areas, the permit applicant is responsible for the removal of all erosion control measures installed throughout the site. 5. The driveway culvert must be constructed in accordance with City of Andover criteria. A low point along the driveway that will provide a surface overflow a minimum of 2 feet lower than the proposed structure must be provided. 6. The developer/bu~7der must work with the City of Andover to ensure that the low floor elevation of the structure is constructed a minimum of two feet above the 100-year frequency flood elevation of the wetland area to the rear, west, of the structure or two feet above the surface overflow elevation of the wetland area.