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<br />12" OUTLET CULVERT FLAP
<br />INVERT ELEV.66691 VALVE
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<br />WATER LEVEL
<br />V. 6672.91
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<br />51CONTOUR INTERVAL
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<br />DESIGN WATER LEVEL
<br />CREST OF EMERGENCY SPILLWAY
<br />NATURAL GROUND
<br />STORAGE LEVEL 12 "0 UTLET CULVERT T
<br />3YEAR SEDIMENT LEVEL 1 W /ANTISEEP COLLARSLqa7 20' SPACING
<br />EMBANKMENT CROSS SECTION
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<br />I TYPICAL
<br />NO SCALE
<br />DITCH H 3
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<br />DESIGN FLOW DEPTH
<br />FREE804RD
<br />■
<br />- 4'-' 6" OF 3.5 RIP RAP
<br />EMERGENCY SPILLWAY
<br />CROSS SECTION
<br />TYPICAL
<br />NO SCALE
<br />28 25.9_ _ _ 10 YEAR - 2_4 HOUR EVENT LE_VE_L_ _
<br />24 23.0 STORAGE LEVEL
<br />16
<br />STAGE
<br />(FEET) 12
<br />8 80 - -- I
<br />4 iSEDIM LEVELORAGE 1
<br />1 t
<br />1 I
<br />0 6.0 31.4 138.2
<br />0 0.3 6.0 90 12.0 150 18.0 21.0 24,0 270 30.0 33.0 360 39.0 420
<br />STORAGE (ACRE FEET)
<br />STAGE-STORAGE CURVE
<br />Permit Number #:
<br />Class: Obit., V Q( 5 f„ n _ ;Z CD
<br />r Class: O Revision _- _- _________.___. _._ -_..
<br />`- Type /Seq
<br />- - --- - - -- - - -- ---------------
<br />Class: 13 Report D Hydro DGeneral - - --
<br />Doc Type
<br />___- -__ -_-__ - _______- _- _.__- __..... -----
<br />_.
<br />DAppl. OBontl DEn(ome D Inspect
<br />STORAGE CAPACITY TABLE
<br />a
<br />CREEK
<br />FLAP VALVE
<br />Base Elevation (feet) 6,647.0
<br />Sediment Storage Elevation (feet) 6,655.0
<br />Outlet Culvert Invert Elevation (feet) 6,670.0
<br />10 Year -24 Hour Event Elevation (feet) 6,672.9
<br />Emergency Spillway Invert Elevation (feet) 6,674.0
<br />Embankment Elevation (feet) 6,677.0
<br />ELEVATION TABLE
<br />Embankment Design
<br />SEDIMENT
<br />POND "M3 -S" - EMBANKMENT-
<br />DESIGN
<br />Design Storage Volume (acre -feet)
<br />Elevation
<br />Area
<br />Average Area
<br />Depth
<br />Volume
<br />Cum Vol
<br />(feet)
<br />(sq ft)
<br />(sq ft)
<br />(feet)
<br />(ac ft)
<br />(ac ft)
<br />- 6,647.0
<br />5,940
<br />55
<br />1(@ average head)
<br />Emergency Spillway Design
<br />Design Peak Discharge (cfs, 100 year -24 hour event)
<br />8,849
<br />1.0
<br />0.20
<br />0.20
<br />6,648.0
<br />11,757
<br />30
<br />Spillway Discharge Flow Depth (feet)
<br />1.33
<br />Freeboard (feet)
<br />1.67
<br />21,540
<br />2.0
<br />0.99
<br />1.19
<br />6,650.0
<br />31,322
<br />37,255
<br />2.0
<br />1.71
<br />2.90
<br />- 6,652.0
<br />43,188
<br />47,801
<br />2.0
<br />2.19
<br />5.09
<br />6,654.0
<br />52,414
<br />54,634
<br />2.0
<br />2.51
<br />7.60
<br />6,656.0
<br />56,855
<br />58,818
<br />2.0
<br />2.70
<br />10.30
<br />6,658.0
<br />60,782
<br />62,816
<br />2.0
<br />2.88
<br />13.18
<br />6,660.0
<br />64,849
<br />66,972
<br />2.0
<br />3.07
<br />16.25
<br />6,662.0
<br />69,094
<br />71,488
<br />2.0
<br />3.28
<br />19.53
<br />6,664.0
<br />73,883
<br />76,758
<br />2.0
<br />3.52
<br />23.05
<br />6,666.0
<br />79,633
<br />82,893
<br />2.0
<br />3.81
<br />26.86
<br />6,668.0 -
<br />86,153
<br />89,845
<br />2.0
<br />4.13
<br />30.99
<br />6,670.0
<br />93,538
<br />98,664
<br />2.0
<br />4.53
<br />35.52
<br />6,672.0
<br />103,789
<br />113,113
<br />2.0
<br />5.19
<br />40.71
<br />6,674.0
<br />122,438
<br />STORAGE CAPACITY TABLE
<br />a
<br />CREEK
<br />FLAP VALVE
<br />Base Elevation (feet) 6,647.0
<br />Sediment Storage Elevation (feet) 6,655.0
<br />Outlet Culvert Invert Elevation (feet) 6,670.0
<br />10 Year -24 Hour Event Elevation (feet) 6,672.9
<br />Emergency Spillway Invert Elevation (feet) 6,674.0
<br />Embankment Elevation (feet) 6,677.0
<br />ELEVATION TABLE
<br />Embankment Design
<br />Design Sediment Volume (acre-feet)
<br />6.0
<br />Design Storage Volume (acre -feet)
<br />25.4
<br />Design Runoff Volume (acre -feet)
<br />6.81
<br />Total Design Volume (acre -feet)
<br />38.2
<br />Principal Outlet Design
<br />Maximum Outlet Head (feet)
<br />2.9
<br />Outlet Pipe Diameter (inches)
<br />12
<br />Maximum Discharge (cfs)
<br />2.14
<br />Theoretical Detention Time (hours)
<br />55
<br />1(@ average head)
<br />Emergency Spillway Design
<br />Design Peak Discharge (cfs, 100 year -24 hour event)
<br />144.88
<br />Principal Outlet Discharge (cfs)
<br />2.35
<br />Emergency Spillway Design Discharge (cfs)
<br />142.53
<br />Emergency Spillway Width (feet)
<br />30
<br />Spillway Discharge Flow Depth (feet)
<br />1.33
<br />Freeboard (feet)
<br />1.67
<br />DESIGN CRITERIA
<br />/ , VAUGHN R. HUGHES, A REG ISTERED ENGINEER IN THE
<br />STATE OF COLORADO DO HEREBY CERTIFY THAT TH IS MAP
<br />/S CORRECT TO THE BEST OF MY KNOWLEDGE AND BELIEF.
<br />DATE
<br />DEC 4'170
<br />Mined Land
<br />20 QTR 90-6-2) Reclama' on D v; ;ion
<br />Colorado Yampa Coal Company
<br />A SUBSIDIARY OF CYPRUS WESTERN COAL EQUIPMENT OM
<br />PA Y
<br />29588 ROUTT COUNTY ROAD OAK CREEK, COLORADO 80467_
<br />DRAWN
<br />DATE BY
<br />6/86 KLS
<br />DESIGNED
<br />DATE BY *EDIMENTATION PO N D
<br />REVISED l I M 3- S I
<br />DATE BY
<br />�S DESIGN
<br />SyICV86 KCB
<br />SCALE TOWNSHIP I RANGE I FILE: NO.
<br />1"=50-
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