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iii iiiiiiiiiiiii iii <br />999 <br />STATE OF COLORP~DO <br />Department of Local Affairs <br />f <br />DIVISION OF LOCAL GOYERNMENT <br />Pat Ratliff, Director <br />•~f~ .., .~., ., ~ <br />;~ .. ~~lf~. ~!. <br />AFB<<~~ ~';~~5 '~ <br />M E M O RAN D U M <br />T0: Mike Long April 29, 1985 <br />Mined Land Reclamation <br />#3567 ~v~{~~ <br />FROM: Dennis Mewshaw ~°~/ <br />Aviation Planning Staff <br />#2352 <br />Richard D. Lamm <br />Governor <br />RE: Impact of Peabody Coal Co. haul road upon Yampa Valley Regional Airport <br />I hope these crude sketches will assist in the analysis of any impacts of <br />the proposed haul road upon aeronautical operations at the Hayden-Yampa <br />Valley Airport. Each sketch overlays the Mount Harris 7.5 minute quad, a <br />copy of which is also enclosed. <br />A brief description of the figure follows: <br />#1 - the existing airport complex <br />#la- proposed haul road easement corridor <br />#2 - existing visual approach surfaces; there seems to be <br />no adverse impact upon the current air space surfaces <br />from the siting of the road <br />#3 - precision instrument approach surfaces assuming navi- <br />gation facilities upgrade; altkiotigh the haul road <br />would be located under the approach slope, its eleva- <br />tion would appear to be less than the maximum allowable <br />height at all points assuming the tallest vehicle to be <br />using the road is less than 12 feet high <br />#4 - precision instrument approach surfaces to ultimate run- <br />way following 2200 feet extension; again the proposed <br />road falls below the maximum allowable height as de- <br />fined by the approach surface; a slight concern is the <br />apparent proximity of the easement to the "clear zone"; <br />this area underlies the approach surface, at ground level <br />and is to be free and clear of any obstacles, thus the <br />haul road would pose an incompatible land usage with the <br />clear zone. <br />2 appreciate the opportunity to assist you with this matter and hope you'll <br />feel free to contact me should future needs arise. <br />DM/vt <br />Enclosure <br />1373 Sherman Street, Room 520, Denver, Colorado 80203 (303) 866-2156 <br />