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<br /> <br />H HY7 WHITEWATER CHANNEL . ..765 <br />.. . d The channel has been designed so that it will not act as a slgmfIcant <br />completed late in February J975. Inquiries were made to German officials w were require . \, <br />kindly loaned the writers a copy of the report describing the model studi~ . obstruction during high flows.) <br />conducted in developing the Augsburg course. This report proved to be ( <br />significant factor in the Denver model studies. i <br />! <br /> <br />I <br />I <br />i <br />i. <br />,. <br />~ <br /> <br />764 <br /> <br />JULY 1977 <br /> <br />I <br /> <br />Criteria for Channel.- The whitewater channel had to meet the fOIlOWi~ <br />criteria. I <br />Relatively Constant Upstream Reservoir Elevalion.-The automatic contro1 <br />fo:the ~xist~ng Public Service Company fabridam maintain the upstream r::~ <br /> <br /> <br /> <br />I l~ <br />:'\; ( <br /> <br />;ABLE 1.-Average River Flows, 'S9uth Platte River at 13th Street Bridge, Denver. <br />Colo. <br /> <br />MODEL <br /> <br /> Average monthly flow, Number of days at <br /> in cubic feet per second less than 200 cfs <br /> Month (cubiC meters per second) (5.6 m'ls) <br /> (3) <br /> (1) (2) ~ <br /> 300 II <br />May i <br /> (S.5) ~- <br /> 256 II ~, <br />June (1,3) <br /> 289 II <br />luly (S.2) <br /> 297 11 <br />,August (SA) <br />4-month average 285 <br />(8) <br /> <br /> <br />J,:.~. . <br /> <br />,7~rr~~;, I <br /> <br />, <br />t:, <br />" <br />! <br /> <br />, <br /> <br />t: <br /> <br />",i <br />" <br /> <br />~, <br /> <br />Ii <br />I <br /> <br />FIG. 2.-8ite of Inlet Control Gates <br /> <br />Ch Ie Geomerry.- The existing Public Service Company fabridam is SUPiorted <br />by a ~einforced concrete foundation slab with a top elevauon of 85.0. twaS <br /> <br />" <br />