2020-12-21_PERMIT FILE - C1981010A ‎(7)‎

• Permit No: C1981010A
• IBM Index Class Name: Permit File
• Doc Date: 12/21/2020
• Doc Name: page 4-172 to 4-222z
• Section_Exhibit Name: 4.8 Hydrologic Impacts
• Media Type: D
• Archive: Yes

Table 4.8-3. Diversion ditch sizing.
Peak Flow b D Slope v
Diversion (Cfs)(1) (ft)(2) (ft)(3) (ft/ft) fps(4)
Far East Buzzard No. 1 0.7 0 0.44 0.02 1.5
East Pyeatt No. 3 51.0 17.0 0.45 0.05 6.3
South No. 3 0.1 1.1 0.05 0.07 1.7
South No. 4 8.2 1.0 0.66 0.04 5.3
No Name No. 1" N/A 0 0.25 0.03 N/A
No Name No. 2" N/A 0 0.25 0.02 N/A
West Pyeatt No. 1 72.0 12 0.43 0.156 13.04
West Flume No. 2 14.9 0 1.17 (5) 0.04 3.5
Horse 1.0 0 0.47 0.096 2.2
East Middle Flume A98-3"" -- -- -- -- .08
East Flume- -- -- -- -- --
Deal Diversion 5.15 0 0.59 0.021 3.74
Deal#2 Pond Diversion 9.41 12 1.24 0.07 5.86
Grouse Diversion to E. Pyeatt 33.36 15 0.49 0.028 4.22
No Name East Diversion 4.70 5.0 0.25 0.036 3.46
No Name West Diversion 10.86 5.0 0.40 0.036 4.63
Coyote Diversion 13.03 5.0 0.52 .022 4.18
Diversion carrying runoff from undisturbed areas.
"Diversion constructed using typical ditch design, (APP Q XVII).
-Diversion not constructed at this time.
""Deal Diversion model within Deal Pond model, (APP Q XXXVI).
(1) Peak flow for 10-year,24-hour precipitation event(1.4"of rain)
(2) Diversion bottom width
(3) Flow depth D= pn )0.375 (Manning's n=0.03)
Ks1/2
(4) Flow velocity v=Q/A
(5) Manning's n =0.06
FF4-8-31 11/20
4-177
Revision: TR-126
Approved: