PERMFILE40184

• Permit No: C1981039
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Pages III-1 through III-62
• Section_Exhibit Name: III. OPERATING PLAN
• Media Type: D
• Archive: No

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TABLE 3
DRAINAGE DITCH-ZTiAAACTERISTICS

Ditch Approx.
Length
ft Approx.
Fall
ft Average
Slope
ft/ft Intercepte
Area
acres Qmax
10-y r. 24-h r.
cfs Dimensions
for Sq. Flo
Area ft
Velocit
ft/sec
Assum
n Ditch
Type
Fi .7 Approx.
Flow
De th
PIT #4
North Collection Ditc
- Upper Reach 4,000 350 .0875 10.0 13.0 1.40 6.6 .040 B 1.0'
- Lower Reach 2,800 50 .0179 78.0 59.5 3.00 6.6 .030 A 2.6'
South Collection Ditc 3,600 400 .1111 61.9 49.0 2.30 9.3 .045 A 1.6'
PIT #5 i -'
North Collection Ditc
to Culvert 5-4 2,700 230 .085 18.0 20.0 3.80 5.2 .040 B 1.9
South Collection Ditc 2,000 200 .100 17.2 19.0 3.40 5.7 .040 B 1.7
Overburden Coll. Ditc
to Culvert 5-4 1,500 180 .120 7.7 10.0 1.60 6.2 .040 B 0.8
Coll. Ditch from
Cu1.5-4 to Sed.Pond 800 40 .050 26.1 26.0 6.50 4.0 .040 A 1.9
Upper Div.Ditch in
N-S Section 920 200 .217 17.0 4.0 0.50 8.3 .040 C 0.5
Upper Diversion Ditch
E-W Sec. to Shop Are 1,280 130 .102 50.0 8.0 1.40 5.7 .040 B 0.7
Lower Di v. Ditch -
Culvert 5-3 to 5-1 900 55 .061 78.1 12.0 2.70 4.4 .040 B 1.4
PIT #6
East Collection Ditch 800 8 .010 4.2 6.0 3.30 1.8 .040 B 1.7
West Collection Ditch 1,200 12 .010 12.6 15.0 8.30 1.8 .040 A 2.4
North Diversion Ditch 900 30 .033 6.1 2.0 0.60 3.2 .040 C 0.6
South Diversion Ditch 1,000 60 .060 27.0 5.0 1.10 4.4 .040 C 1.1