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<br />.. <br /> <br />. <br /> <br />2fi7~ <br />Table No.3 was designed to show the changes in discharges for several specific gage heights. <br /> <br />The information included here in shows that there has been~me aggradation of the channel. What is most <br />significant seems to be the loss of conveyance capacity during the period. While the low point in the <br />channel had been raised some, the bi changes are the result of ve . on encroachment on the channel <br />and by the trash, and possibly 0 er factors. Large floods often scour a channel and flood plain and <br />increase the conveyance. <br /> <br />The Corps. Of Engineers, Albuquerque branch, did a recent flood study of the area. Some relevant <br />information related to channel fill might be found there. <br /> <br />TABLE NO.3 . <br />Changes in Discharge With Time for Specific Gage Heights for Seven Ratings (Conveyance Loss) <br /> <br /> '--'-- <br /> ./" " <br />Rating Period Covered Gage Height Gage Height ~ge Height \ Gage Height <br />Table by Rating = 4.0 feet ~ 5.5 feet = 7.0 feet = 11.0 feet <br />No. Qcfs. It. Q cfs. t. I Q cfs. t.~ Q cfs. I t. C-UV\ <br /> Q Q Q 1f' Q <br />30 10-1-63 to 9-30-64 9 0 1200 est 0 I 3700 0 I \ 20300 0 <br />31 10-1-64 to 6-14-65 50 +41 1200 0 I 3700 0 20300 0 <br />32 6-14-65 to 9-30-65 175 +166 1230 +30 3700 0 20300 0 <br />34 11-1-67 to 9-30-71 95 +86 895 -305 3700 0 20300 0 <br />35 10-1-71 to 9-30-80 16 +7 660 -540 3190 -510 20300 0 <br />36 10-1-80 to 2-28-91 -- -- 320 -880 \ 1860 -1840 1700Q,st -3300 <br />37 3-1-1991 to present -- -- 98 -1102 \ 730 -2970 I 4900 -I 5406'f <br /> / '- / <br /> ,-- <br /> (,o~ <br /> <br />Wb/ark-nver-changes-1963-l997 <br /> <br />\., "\ "--' ~ <br />I S',"'~U c\ -' - <br /> <br />I, <br />