2012-01-06_PERMIT FILE - C1982057 (30)

Home Browse Search

To the best of my knowledge, based upon niy professional expertise and to the extent possible, this haul road at the Seneca II-W Mine was constructed with prudent state-of-the-art earthen construction. Further, the structure was constructed in compliance with the approved design, to the extent possible, as specified in Tab 13 of the approved permit. Drainage contro] is provided by culvert and ditches and are listed in Tables 1 and 2. Sediment control for some stockpiles is provided by catchment ditches and/or catchment basins as described in Attachment 13-8 and depicted on Exhibit 13-2. The as-built haul road location, and the horizontal and vertical alignment are shown on Exhibits 13-13.1 through 13-13.5. The road width is adequate for the anticipated volume of traffic. Density tests and proctors were taken to ensure proper compaction on all fill areas. These test results are found in Addendum 1. All fill was placed in accordance with specifications found in Tab 13 of the approved ,~ permit. The road structure appears to be stable, evidencing no indications of cracks, deep rutting, settlement, or slope instability. Side cut slopes are 1.5H:1V or flatter with most cut slopes at 2H:1V. Cut slope stability is not a problem at this time. The fill slopes are mostly 3H:1V with some slopes at 2H:1V which should cause no stability problems. The as-built drawings will replace the design drawings. Division. •o~P~O~J~C~TlF9: ~ ;c o . 5, ;~; NOV 0 5 1990 ~e ,. Ronald J G~ - ~; ~~p Date ~ .. . \ • T ~„ E~6~s Colorad P.E.`fl`~$~ AL • +.... • To the best of my knowledge and belief, field adjustments made during the construction of the structure are in conformance with the Rules and Regulations and the intent of the approved designed plans and specifications ~•~~oved by the Colorado Mined Land Reclamation ~ REQ a