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<br />
<br />LEGEND
<br />FLOOD PLAIN LIMITS
<br />
<br />
<br />100 YEAR
<br />FLOOD
<br />
<br />-~-----
<br />GROUND ELEVATION IN FEET ,/ ~c80 ~./
<br />MEAN SEA LEVEL DATUM --
<br />
<br />CONTOUR INTERVAL 2.0'
<br />CROSS SECTION A.
<br />CROSS SECTION CONTINUED a ..
<br />
<br />INTERMITTENT STREAM -+~ ... i -'"
<br />HORIZONTAL CONTROL 6 272",\ C~nler Line "\
<br />Station In 100ft.
<br />VERTICAL CONTROL 0 from lower study limit
<br />PHOTO CENTER {)
<br />
<br />GRID POINT +
<br />100 YEAR FLOOD ELEV. 5280
<br />
<br />~-_/
<br />
<br />aA
<br />
<br />C-69 INDEX NUMBER FOR COLORADO RIVER MAPPING PROJECT
<br />
<br />SHEETS 1,6 AND PARTS OF 2,7,10,11
<br />TOPOGRAPHY COMPILED BY PHOTOGRAMMETRIC METHODS FROM
<br />6" C.F.L. VERTICAL AERIAL PHOTOGRAPHY TAKEN NOV. 15,16 a 17,
<br />1982. BASIS OF HORIZONTAL CONTROL: THE COLORADO STATE
<br />PLANE COORDI NATE SYSTEM. CENTRAL ZONE, LAMBERT
<br />CONFORMAL CONIC PROJECTION. THE FOLLOWING (USC a GS AND
<br />lOR USGS) TRIANGULATION STATIONS WERE USED: CATHERINE
<br />COORDINATES X.I,516,508.42 Y=5BI,255.78. GNAT-X= 1,231,566.60
<br />Y.523,643.10. BASIS OF VERTICAL CONTROL: USC a GS SEA LEVEL
<br />DATUM BASED ON THE FOLLOWING BENCHMARKS: 0-156 ELEVATION
<br />6192.284. 4870.74PS-ELEVATlON 4869.860, PREPARED BY ANALYTICAL
<br />SURVEYS,INC. 4167 SINTON ROAD, COLORADO SPRINGS, CO. 80907.
<br />
<br />SHEETS 3,4,5,8,9,12,13,14 AND PARTS OF 2,7,10, II
<br />COORDINATE SYSTEM IS THE MODIFIED COLORADO STATE PLANE
<br />COORDINATE SYSTEM, CENTRAL ZONE, LAMBERT CONFORMAL
<br />CONIC PROJECTION. THE FOLLOWING <USCaG AND USGS)
<br />TRIANGULATION STATIONS WERE USED: DRY HOLLOW X=r,395,770.68,
<br />Y=613,033.61, CASTLE X=I,432,094.81, Y=623,300.73, ANTLER
<br />X'I,371,760,95, Y=630,478.31. BASIS OF VERTICAL CONTROL:
<br />USC 8GS AND USGS. SEA LEVEL DATUM BASED ON THE FOLLOWING
<br />BENCHMARKS: RIFLE ELEV. 5319.199, NEW CASTLE ELEV.5747.82.
<br />TOPOGRAPHY COMPILED BY PHOTOGRAMMETRIC METHODS FROM
<br />6" CFL VERTICAL AERIAL PHOTOGRAPHY TAKEN JAN. 12, 1983.
<br />COMPILED BY BELL MAPPING CO.,500 KALAMATH ST. DENVER CO,
<br />LEGEND
<br />.S (2) MAP SHEET NUMBER
<br />
<br />
<br />REVISION
<br />
<br />DATE
<br />
<br />BY
<br />
<br />(j U. S. DEPARTMENT OF AGRICULTURE
<br />~ SOIL CONSERVATION SERVICE
<br />
<br />FLOOD PLAINS
<br />FLOOD PLA IN MANAGEMENT STUDY
<br />TOWN OF SILT
<br />IN GARFIELD COUNTY
<br />· COLORADO
<br />o 200 400
<br />
<br />200
<br />,
<br />SCALE
<br />
<br />IN
<br />
<br />600
<br />.
<br />FEET
<br />
<br />SHEET 10 OF 14
<br />
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