Project Packet - Laserfiche WebLink

Home Browse Search

Page -4- Brown Hayden and Lester loans - 4 to 35 percent slope: The map symbol for this soil is HdF and the mar color is brown. This is a very steep soil occupying areas on hillsides, on sides of deep ravines, and on slopes adjacent to lakes and wetlands. The steepness of this soil is a severe constraint to most urban development if the natural landforms are to be maintained. There is a very severe erosion hazard if this soil is left exposed. Soil strength is adequate. Shrink -swell (volume change) is low to moderate with changes in moisture content. The soil is mod- erately permeable. Hayden clay loam: This soil has the same characteristics as the Hayden loam. The difference between the two soils is that between 1/3 to 2/3 of the topsoil has been lost from the Hayden clay loam. There are several slope phases of this soil mapped in Hennepin County. Each slope phase mapped within the area of proposed development will be discussed separately. Mediwn Hayden clay loam - 6 to 12 percent slope, eroded: Green F �The map symbol for this soil is HcC2 and the map color is medium green. This is a rolling silil occupying irregularly shaped areas on knolls and hillsides. Because this soil is eroded the surface laver is clay loam. The rolling slopes offer attractive building sites. The soil is well - drained and therefore never saturated. Sidehill seepage is not uncommon however, around basement walls during rainy seasons or spring thaws. Soil strength is adequate for residential development. Shrink -swell (volume change) is moderate with changes in moisture content. The soil is mod- erately permeable. Erosion is a hazard when the land is graded and left exposed for extended perio-is. Hevder sandv loam: This is a deep, well -drained Soil that forme in loamy glacial till. The underlying material is calcareous loam. The soil occurs on knolls and hills. The native vegetation was mixed hardwood forest. Several slope phases of this soil are mapped in Hennepin County. Each slope phase mapped in th- area of proposed development will be discussed sep- arately.