Laserfiche WebLink
Spring 2014 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas (E -Seam) <br />4.2 Traverse B -B' <br />Traverse B -B' begins at Traverse A -A' and continues in a west/northwestward direction along a <br />ridgeline above mined E -seam Longwall (Panel E 1 and a small portion of mined E -seam Longwall <br />Panel E2 to numerous MDW pads (see Map 1 and 2). MDW pads are accessible from this traverse <br />including El-26.5, El-30.5, E 1 -34, El-38, E 1 -42, E2-38, E242, E244.5, El-45, and E247.5. <br />MDW pads E1 -15 and E1 -19 were historically access along this traverse but have now been <br />reclaimed. <br />This traverse is generally flat and stable on soil and colluvium derived from the Wasatch <br />Formation and from intrusive rocks of t* West Elk Mountains overlying consolidated bedrock <br />units of the Barren Member of the Mesaverde Formation. Overburden depths along this traverse <br />vary from 1,090 to 1,460 feet over the B +seam and 850 to 1,230 feet over the E -seam. <br />No changes were observed along this traverse or at the various MDW pads. <br />4.3 Traverse C -C' <br />Traverse C- C' is the Dry Fork Road from Monument Dam (Minnesota Reservoir) eastward to the <br />where the road crosses Deep Creek (see '(Maps 1 and 2). Portions of this traverse parallel the Dry <br />Fork itself. This traverse is located above mined E -seam Longwall Panel E 1 through E4 as well <br />as mined and unmined portions of E -seam Longwall Panels E5 and E6. The extreme western end <br />of this traverse is adjacent to Minnesota Reservoir and outside the proposed E -seam mining <br />influences of Longwall Panels E1 through E9. <br />Several side roads lead a short distance away from this traverse (Dry Fork Road) to MDW pads. <br />Previously, these roads and pads were described as separate traverses. Beginning in 2013, only <br />the longest of these MDW pad side roadt will be discussed as a separate traverse (see Traverse D- <br />D', E -E', F -F', G -G', and J-J'). The smaller traverses will be included in the discussion for Traverse <br />C -C'. <br />831 - 032.795 Wright Water Engineers, Inc. Page 9 <br />September 2014 <br />