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r • DANE COUNTY 4 Zoning and Natural Resources Committee REVISED RPC ST;-.=F COMMENTS Dec. 1990, Jan . 199; Petition 4928. This is a large trucking business with the Wisconsin River wetland and floodplain to the west , a few low-density houses to the north and south, and a major unsewered subdivision to the east , which is mostly developed with single family homes. The request is to rezcne the wetlands westerly to the railroad tracks and fill it for truck parking. The adopted policy of Dane County and the Town of Mazomanie for such an area is: "Floodplains and wetlands as delineated on the plan map and water resources map will be protected from encroachment by development or filling. " The way to protect this area Is to maintain the zoning as it now stands . The :rucking business was established at this site in 1969 as permitted by :'-:e C-2 commercial zoning . In 1981 , Dane County adopted wetland overlay zoning which placed limits on further filling and development of this site. The site (shaded area on the map) Is relatively flat with most of the undeveloped area in the floodplain of the Wisconsin River . The river itself is approximately 2000 feet to the west of the railroad tracks. The area between the river and the site is all wetland and floodplain . The residential subdivisions to the east are on steeper slopes with drainage to the northwest toward the river . The wetland area remaining on the site is classified as S3K -- broad- leaved deciduous shrub/scrub wetland with wet soils -- and is part of a more or less continuous wetland/woods corridor east of the railroad track. Existing filling and development on the site have partially interrupted the continuity of this wetland compiexicorridor , and appears to have adversely impacted the wetland and surface drainage in the immediate vicinity. There is clearly defined surface drainage from the site crossing the railroad to a-drainage ditch- running westerly to the • Wisconsin Rlver. wetlands and old channels/meanders in the Mazomanie Wildlife Area . It appears that past filling and development have had significant adverse impacts on the site wetland and surface drainage from the site and have interrupted the continuity of the wetland/woods corridor . complex east of the railroad (this is probably significant from a wiidiife habitat standpoint) . The proposed filling would further increase these impacts by adversely affecting storm and floodwater 1 • •