Agenda - 11-01-1995 - X-B - Laserfiche WebLink

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56 • Farmland; • Slopes of 15% to 25%; • Other historic and/or archaeological sites; • Public and/or private recreation areas and facilities; • Public and/or private infrastructure improvements; and/or • Scenic views of preserved features and/or landscape buffers. Secondary Conservation Areas may be comprised of any of the remaining open space uses identified above.When permitted,such uses may provide the remaining land area needed to satisfy the thirty-three percent (33%) open space requirement. d. When lots and access streets are laid out, they must be located so that those portions of the site proposed for disturbance and/or construction avoid Primary and Secondary Conservation Areas. Where access streets and/or utilities are required to pass through or by such areas so as to link one buildable portion of a site with another, they must be located and/or constructed so as to have no adverse impacts on Primary and Secondary Conservation Areas. Continent: The distinction between 'Primary' and "Secondary' Conservation Areas cited above is based generally on the system advocated by Randall Arendt in the Sussex County,Delaware open space design guidebook A similar methodology was used by the University Station Planning Group in attempting to define open space areas. Arendt's approach is to set aside Primary Conservation Areas first, since such features are considered unbuildable for legal or practical reasons. In addition to wetlands and floodplains,he suggests that the following features be included as part of designated Primary Conservation Areas: • Slopes of greater than 25%; • State-listed habitats of threatened or endangered species, and/or • National Register sites (improved or renovated with federal funding) and locally designated historic districts. Slopes of 15% to 25%, natural areas, wildlife habitats and corridors, and historic and archaeological sites would thus be classified as Secondary Conservation Areas. One difference between the Arendt approach and the Flexible Development proposal is that all habitats and corridors as identified in the Inventory of Natural Areas and Wildlife Habitats have been categorized as Primary Conservation Areas. Of 64 sites identified in the Inventory only eight contain threatened or endangered species. The inclusion of all sites as Primary Conservation Areas recognizes the limited number of such features as well as their diversity and significance. Another difference involves historic and archaeological sites. Recent inventories have identified 665 historic sites, including six National Register sites and 41 National Register study list sites. Of the study list sites, three are potential historic districts, and one is an archaeological site. No local historic district or landmark designations have been made. The inclusion of such sites as Primary Conservation Areas recognizes their existing or potential significance. The inclusion of scenic views of preserved features,e.g.,farmland and water bodies, as well as landscape buffers to screen the view of development from public roads is based on Arendt's approach to defining Secondary Conservation Areas. 3. Ownership of Open Space. Open space within a Flexible Development may be owned and/or administered by any of the following methods,either individually or in combination.All open space shall be permanently restricted from further subdivision. Flexible Development 6