09-22-1997 Council Packet - Laserfiche WebLink

Home Browse Search

Zoning File #2281 August 14,1997 Page 3 » V Erosion Control and Revegetation Applicant has submitted a detailed erosion control plan including revegetation plans. These are included in the 182 page project plan, which is available for review but not included as part of this memo. Other Agency Reviews Since the total impact on wetlands is less than 3 acres, this project qualifies for the Corps of Engineers Nation-Wide General Permit No. 26. It appears that Wetlands IN and IS are potentially subject to DNR jurisdiction because they are adjacent to the protected Painter's Creek tributary. As noted previously, the wetlands are subject to the Wetland Conservation Act for which MCV/D is Orono's LGU. Discussion This Hennepin County project is necessary in order to reconstruct County Road 6 in a manner that will incorporate new safety features and bring this roadway up to current standards. The City Council clearly feels that the project is necessary from a public health/safety/welfare standpoint and has approved the proposed construction plans. As noted in applicant's submittals, the County has minimized wetland impacts by staying in the existing right-of-way whenever possible. Impacts to wetlands were also minimized and avoided by steepening slopes and pulling back the construction limits. Due to safety requirements for road alignments and sight lines, the County's ability to avoid wetland impacts is restricted when widening the roadway and adding turn lanes and roadway shifts. It appears to staff that the most significant impact on Orono protected wetlands will be in Basins 5N and 6N, which are essentially two halves of a single wetland basin separated by a private driveway which has been in place for many decades. Approximately 1/4 of this 1.5 acre wetland basin will be filled. This basin drains to the north to another 1 acre basin, then northwesterly to the 100 acre "south Katrina marsh". This wetland system has been identified within the preliminary Storm Water Management Pltui documents as an area requiring some storm water infrastructure improvements, possibly including a culvert replacement. Staff will be forwarding the application to the City Engineer for his review and recommendation as the filling of this pond relates to the preliminary storm water plan. As noted in the discussion with the County Road 15 reconstruction project review, the City adopted Shoreland Ordinances that suggest that prior to filling a wetland there should be an analysis of the specific value provided by that wetland, but since the City has never completed an inventory of