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S2PM06 <br />Project Neme: Seneca II <br />Project Number: 882.1000 <br />Preparetl By: JPB (Update by KCK) <br />Date Prepared: 08 Nov 1997 (Update 18 Jun 1998) <br />File: J:~B821DS152SUMM.XLS <br />Channel Design Flow, Q Slope Bottom Width (BYIg S/de Slopes Depth o/ Flow (D) Velocity Freehoarcl Total Depth Rlprep D50 <br />(cam) ('~) (n) (_N:1 ~ (h) (1Ps) (n) (n1 On) <br />(1) and (2) (3) (4J <br />S2 PMT Upper (6) 23 6-7 2 3 0.9 6.40 0.3 1.2 6 <br />S2 PMT Upper (6) 23 8-10 2 3 0.8 6.57 0.3 1.1 9 <br />S2 PMT Mid Upper (6) 29 4-5 2 3 1.1 6.12 0.3 1.4 6 <br />S2 PMT Mid Upper (6) 29 6-20 2 3 1.0 7.99 0.3 1.3 9 <br />S2 PM-6 Mid Mid (7) 36 6-19 2 3 1.1 8.54 0.3 1.4 9 <br />S2 PM-6 Mid Lower (8) 103 2-6 10 3 0.8 10.87 0.3 1.1 9 <br />S2 PM-6 Mid Lower (B) 103 7-14 10 3 0.8 13.23 0.3 1.1 12 <br />~ S2 PM-6 Mid Lower (B) 103 15-19 10 3 0.7 16.1 0.3 1.0 15 <br />:J S2 PMT Lower (9) 123 6-10 10 3 0.9 11.98 0.3 12 12 <br />N <br />O <br />Notes: <br />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 SEDCAD hydrologic analysis. <br />3) Depth of flow based on minimum grade. <br />4) Velocity based on maximum grade. <br />6) S2 PMT Upper is above pond T-32. <br />6) S2 PMT Mid Upper is from pond T-32 to the junction with channel S2 PM-7. <br />7) S2 PMT Mid Mitt is from the junction with S2 PM-7 to pond T-29. <br />8) S2 PMT Mid Lower is from pond T-29 to pond T-23. <br />9) S2 PM-6 Lower is from pond T-23 to culvert 19a. <br />z <br />m <br />r• <br />m <br />m <br />a <br />0 <br />a <br />0 <br />• P~ • <br />