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2.05,3 <br />light use road is approximately 2,600 feet long with an overall average grade <br />of 5%. The first 1,600 feet has an average grade of 10%. The next 300 feet <br />has an average grade of -16%. The next 350 feet has an average grade of <br />7%. The next 200 feet has an average grade of -i3% and the final 150 feet <br />has an average grade of 6%. There are two 50 feet segments and one 200 <br />foot segment of the road where the pitch grade exceeds 20%. The drainage <br />area above the point where this road crosses Freeman Gulch is less than <br />one square mile. An 1 S-inch diameter culvert will be installed where the light <br />use road crosses Freemen Gulch. This light use road will be reclaimed. <br />Light use roads will be constructed to access drill pads for Gob Vent <br />Boreholes. The roads will be constructed in accordance with rule 4.03.3. <br />The layout of the roads are presented on Map 9 Hydrological Monitoring <br />Location Map. <br />Light use roads roads that can easily be traveled with an ATV and may be <br />traveled with a 4-wheel drive vehicle will be upgraded so a drill rig can <br />traverse the road. Light use roads roads that cannot be traveled with a 4- <br />• wheel drive vehicle yet might be traveled with an ATV will be refurbished so <br />a drill rig can traverse the road. Generally upgraded and refurbished light <br />use roads cause about 6 and 12-feet of new disturbance per lineal feet of <br />road respectively. <br />A light use road was constructed during May and June 2000 to access Pond <br />B. The entrance for the road is from 4365 Lane. The road parallels Old <br />State Highway 133. It is approximately 600 feet long with a uniform grade <br />of about 1,5 percent. <br />New light use roads will be reclaimed. Reclamation of the upgraded and <br />refurbished light use roads may involve narrowing the roads so they are <br />compatible with the postmining land use of rangeland and wildlife habitat <br />since roads are necessary to manage both land uses and a light use road <br />network was existing on the property prior to mining. <br />(iiij The haul and access road construction will not alter or relocate any drainage <br />ways so no response is required. <br />(iv) The inlet end of all culverts and ditch relief drains will be protected by an end <br />• section or a rock or concrete headwall. <br />PR-06 2.05 - 26 - 10/01 <br />/~ PPko v~ <br />I~IS~oz <br />