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iii iiiiiiiuiiii iii <br />page 5 of 5 <br />TRAPEZOIDAL CHANNEL <br />West Collection Channel-Facilities Segment <br />(Lower 400' of West Collection Channel) <br />CHANP!EL CAPACITY = 72.39841 CFS <br />NOTE -- TRACTIVE FOP.CE = 1.616834 PSF <br />DESIGN VELOCITY = 7.823416 FPS <br />DESIGN TRACTIVE FORCE = 1.616834 PSF <br />CHANNEL SLOPE = 2.95$ <br />MANNIHGS N = .03 <br />DESIGN FLOW DEPTH = <br />DESIGN FREEBOARD = <br />TOTAL CHANNEL DEPTH <br />CHANNEL TOP WIDTH = <br />CHANNEL SIDE SLOPE <br />DESIGN BOTTOM WIDTH <br />D50 = 3.5 INCHES <br />1.237877 FEET <br />.4 FEET <br />= 1.637877 FEET <br />11.55151 FEET <br />=2to1 <br />= 5 FEET <br />Construct surface facilities segment of channel with 5 foot <br />feet deep. Lower 400 feet of surface facilities segment to <br />durahle sandstone riprap with a minimum D50 of 3.5 inches. <br />will be a minimum of 6 inches thick and will he placed alon. <br />and bottom and worked into the soil with a dozer. Based~on <br />and observed performance, riprap lining is not required for <br />of the facilities segment of the channel. <br />~~Px~ ~Z <br />7-'7 <br />7528E <br />wide bottom ny 2 <br />be lined with <br />The riprap layer <br />q the channel bank <br />exietinq gradient <br />the upper portion <br />scg <br />