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• Single lane road <br />• 14-foot road width <br />• Road should have inter-visible turnouts 100-feet wide, with 50 foot transitions on either <br />side <br />• 15% grades are allowed up to 300 feet <br />• 8% sustained grade is allowed for the road overall <br />• In-slope road pitch should be 2% <br />• Road drainage will consist of rolling dips and ditch relief culverts <br />• 18-inch minimum culvert diameter <br />• Armor all stream crossings <br />• Maintain 100-foot stream buffer _. _ _ _ ~ _ ___~ __ <br />" ~- ~~ ~ All fills at stream and/or riparian crossings must be underlain with geotextile fabric <br />• Side-slopes maybe vertical when below bedrock outcrops <br />• The road will be aggregate surfaced per your submittal <br />• Live drainage crossings shall be sized to pass a 50-year flood event and sustain a 100- <br />year flood event <br />Eaviroameatal Specifications <br />• The road cut could be minimized where it would be just below bedrock outcrop <br />• Prefer construction on the east side of Sylvester Gulch, utilizing natural benches <br />• Avoid high hazard areas <br />• Construct on dry slopes as much as possible <br />Other Speciftcatioas <br />• Utilize U.S. Forest Service documentation such as the Water/Road Interaction Tool Kit, <br />accessible on the web at htto://fsweb.sdtdc.wo.fs.fed.us/water-road/ <br />• Incorporate the conclusions of the 1998 Geotechnical Drilling Program Summary Report <br />for Sylvester Gulch <br />If you need further information, or have any questions, comments or concerns, please contact <br />Kim Kaal at the Paonia Ranger District at (970) 527-4131 or by email at kkaal@fs.fed.us: <br />Sincerely, <br />SUSAN JSPEAR <br />District Ranger <br />Cc: Byron Walker-CDMG <br />