Laserfiche WebLink
<br />Trapper Mining Inc. <br />Craig, Colorado <br />DAM CONSTRUCTION CERTIFICATION <br />I, Collin R. Fay, a Registered Professional Engineer in the State of Colorado, in ac- <br />cordance with 2 CCR 407-2, Section 4.05.6(7), certify that West Buzzard Dam No. 1, <br />located in Section 29, T 6 N, R 91 W, 6th PM, was inspected by me during construc- <br />tion. Construction of this dam was begun on July 20, 1987, and completed on Sep- <br />tember 12, 1987. 1 certify that the embankment and spillway were built as designed <br />and the resulting West Buzzard sedimentation system will meet effluent limitations as <br />predicted by hydrologic modelling techniques. <br />During construction, this dam was visually inspected daily to insure compliance with <br />prudent construction methods. Compaction was accomplished by laying fill material <br />in thin horizontal layers and compacting with a vibratory roller compactor, a dozer, <br />and/or scrapers. Standard Proctor densities were determined in our lab using <br />methods outlined in AASHO Standard Method T99-61. Compacted density and mois- <br />ture content of the placed fill material was monitored using a nuclear density probe to <br />ensure adequate compaction. <br />e o, o.... <br />o U RF 4 <br />6a0Q,?~..... ~~Tl• <br />o°o ~ .~Et1CNARp~. fq m <br />rG .~ may. spa <br />a ,v T, a <br />k ~ ~ 22438 <: * i <br />~A : v <br />.A • ; ~~o <br />ro•. .~ • <br />~'~ '•. ~ 0 <br />.:Ory~tsuy~ <br /><;/GG` /~ <br />Collin R. Fay, Colorado o. 22438 <br />Dc ro~BE'R /~, /9B7 <br />Date <br /> <br />