Agenda - 02-05-1990 - Laserfiche WebLink

Browse Search

5 Although the categories were based on one-story construction, the square footage could be representative of two-story construction. As an example, a dwelling with 2500 sq.ft. of ground coverage could be a sprawling ranch-style dwelling with garage, porches, etc. It could also be indicative of a two-story dwelling with 1000 sq.ft. on the first floor and the remainder ( 1500 sq.ft. ) covered by garage, porches, and utility building. 4 . Driveway Area: Driveway area was determined by multiplying the length times a standard width of 10 ft. Driveway length is influenced by one or more factors - the location of the nitrification field (and thus the dwelling) on a lot, the necessity of avoiding topographical and environmental constraints, and aesthetic concerns . The minimum length was considered to be 60 ft. (40 ft. building setback + 20 ft. distance between property line and edge of road) . Driveway length (and dwelling location) was increased in 50 ft. increments until the rear yard setback would have been violated. A 400 ft. turnaround area was included in the calculation of driveway area. To illustrate the application of the template, a complete run of the model is provided. The example is included as Attachment and is representative of a 5-acre lot with a 2000 sq.ft. dwelling area. Template Application/Results Listed below is a summary of the results derived from applying the template. Results are presented for 5-acre and 2-acre lots. 5-Acre Lots For 5-acre lots, 672 design possibilities were derived using the factors identified above. General findings are as follows: 1 . Of the total number of scenarios, 405 or 60. 3% complied with the 4% impervious surface standard while 39 . 7% did not. 2 . Lots fronting on a Class B or C private road, and having smaller dwellings and shorter driveways were more likely to comply (see Attachment C) . 3 . Lots fronting on a public road, and having larger