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<br />.' <br /> <br />0:2214 <br /> <br />- 25 - <br /> <br /> <br />TABLE 3 - STRUCTURE DATA <br /> <br />. <br /> <br />FLOODWATER-RETARDING STRUCTURES <br /> <br />. <br /> <br />Fishers Peak - Carbon Arroyos Watershed, Colorado <br /> <br />. <br /> <br /> Structure Number <br /> Item Unit FPC-I FPC-2 Total <br /> Drainage Area Sq. Mi. 1.14 0.34 1.48 <br /> Storage Capacity <br /> Sediment Ac. Ft. 27 20 47 <br /> Floodwater Ac. Ft. 243 73 316 <br /> Total Ac. Ft. 270 93 363 <br /> Surface Area <br /> Sediment pool Acre 4.3 2.8 7.1 I <br /> Floodwater pool Acre 7.7 8.0 15.7 <br /> Volume of Fill Cu. Yds. 135,822 54,293 190,115 <br /> Elevation Top of Dam Feet 6264.5 6141.5 xxxx <br /> Maximum Height of Dam Feet 74.5 52.0 xxxx <br /> Emergency Spillway <br /> Crest elevation Feet 6259.5 6135.5 xxxx <br /> Bottom width Feet 200 68 xxxx <br /> Type Earth Earth xxxx <br /> Per cent chance of use 0.3'7, 0.3'7, xxxx <br /> Average Curve No. - Condition II 73 78 xxxx <br /> Emergency spillway hydrograph 11 <br /> Freeboard hydrograph <br /> Storm rainfall (6-hr.) 2.5 x 5.0 in. Inch 12.5 l2.5 xxxx I <br /> Storm runoff Inch 8.95 9.66 xxxx <br /> Maximum peak inflow C.F.S. 5,410 2,695 xxxx I <br /> Velocity of flow (vc) ~I Ft./Sec. 7.2 , 6.4 xxxx <br /> Discharge rate ~I C.F.S. 2,250 540 xxxx <br /> Maximum water surface elevation ~J Feet 6262.7 6138.5 xxxx <br /> Maximum oapacity C.F.S. 5,000 2,000 xxxx <br /> Principal Spillway <br /> Capacity - low stage C.F.S. 82.4 25.6 xxxx <br /> Capacity Equivalents <br /> Sediment volume Inch 0.4 l.l xxxx <br /> Detention volume Inch 4.0 4.0 xxxx <br /> Spillway storage Inch 1.0 2.3 xxxx <br />I Class of Structure 1.1 I ;'e(l "e" I <br /> I xxxx <br /> , , <br /> I ------~~-~'"--- <br /> <br />11 Volume in emergency spillway hydrograph is less than floodwater storage <br />- capacity. <br />21 Maximum during passage of hydrograph. <br />II As defined in Engineering Memorandum SCS-27, revised. <br /> <br />Date: June 1960 <br />