Agenda - Council - 10/27/1987 - Laserfiche WebLink

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Fish and Wildlife: The site is neither on nor adjacent to a national, state or local wildlife area. The Rum River is designated as an Urban Scenic River adjacent to the park. Wildlife on the site consists of small mammals and birds. Deer are sighted occasionally. Northern pike, walleyes and largemouth and sma!imouth bass are predominant game fish found in the Rum River. Minimal disruption of wildlife · ~ occur under this project since most of the area has pre- viously received some grading. No work within either the waters of the oxbow or the river is contemplated as part of this project. Erosion and sedimentation during construction will be controlled as a part of the contract. There are no known endangered species on the site. Vegetation: The predominant vegetation on the site consists of blue grass mixes on graded areas and box elder, willow, ash, elm and oak trees as canopy trees. Understcry vegeta- tion is dominated by redosier and laurel willows. Aquatic plants such as sedge, cattails and horsetail are found in the oxbow. Some trees may be moved from elsewhere within the park during development to form screening along the north end of the park. The future construction of County Road 116 will require removal of some trees from the park. Ground cover will be re-established upon completion of construction. There are no known endangered plant species on the site. Geology and Soils: The soil survey of Anoka County shows that the park is dominated by Becker very fine sandy loam soils with smaller areas of Dickman sandy loam. Alluvial soils are found in the oxbow. Soils on the site formed in glacial outwash deposited by the retreat of the Grantsburg sublobe of the Des Moines glaciation. The alluvial soils have formed in sediment from recent floods of the Rum River. Mineral Resources: There are no known mineral or peat deposits on the site. Some areas of peat may occur in the alluvial soil areas of the oxbow. Air and Water Quality: Emissions from construction may temporarily lower air quality during construction. Emmissions from park user vehicles will not significantly deteriorate air quality. Erosion may occur during construc- tion and cause sediment laden runoff, however, measures will be taken to mitigate runoff during construction. These measures may include, but are not limited to, silt fencing, temporary straw dikes, limiting the area of ground exposed to earthmoving operations, and prompt re-establishment of vegetation. Most of the park is in the flood plain area. The 100 year flood elevation is 853.0. The future community recreation center will be above the flood plain. The future picnic shelter with public restrocms will be built at least 1.5 feet above the flood elevation or the struct~/r<a ~ill be flood proofed. Temporary noise disturbance will occur