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S2PM08 <br />Project Name: Seneca II <br />Project Number: 682-1000 <br />Prepared By: JPB <br />Date Prepared: 29 Mar 1998 <br />File: J:~B82rD5\S25UMMXLS <br />Channel Design Flow, Q Slope Bottom l~dth (BWl Slde Slopes Depth o/Flaw (D) Veloc/ty Fneeiyoard Total Depth Rlprop D50 <br /> (cI's) (%) (tt) (H:1 h (ttl (tPs) (tt) (tt) (n) <br /> (1) and (2) (3) (4) <br /> <br />S2 PM-8 75 2-10.8 2 3 1.8 8.97 0.3 2.1 8 <br />S2 PM-8 75 10.7-17 2 3 1.4 9.36 0.3 1.7 12 <br />S2 PM-8 Lower (5) 96 2-9 10 3 0.8 11.2 0.3 1.1 9 <br />S2 PM-8 Lower (5) 96 10-15 10 3 0.7 13.52 0.3 1.0 12 <br />i Notes: <br />N 1) Channel was designed to safely convey runoff resulting from the 10 year, 24 hour storm event. <br />~ 2) Design flow rounded to nearest whole cfs from SEDCAO hydrologic analysis. <br />^' 3) Depth of flow based on minimum grade. <br />4) Velocity based on maximum grade. <br />5) S2 PM-8 Lower is from the intersection of S2 PM-13 to pond D08. <br />z <br />m <br />c <br />w <br />N <br />a <br />0 <br />0 <br />ou <br />~ ~ Page 9 <br />m • <br />