|
<br />Table 4. - Backwater characteristics for the upper and lower reaches of the Colorado River,
<br />19891SMP, September 26, 1989 (flow at GS State Une gauge = 2,990 ft3/S).
<br />River-mile Backwaters Backwaters/ Area Area/mile Mean size S*
<br /> mile (m~ (m~ (m~
<br />Lower reach
<br />0-20 30 1.5 31,840 1,592 1,061 1,601
<br />21-40 27 1.4 15,736 787 583 578
<br />41-60 38 1.9 52,531 2,627 1,382 3,046
<br />61-80 23 1.2 6,142 307 267 346
<br />81-100 30 1.5 18,012 901 600 743
<br />101-110 16 2.2 11 ,508 1,144 520 635
<br />Total reach 170 1.5 135,699 1,234 798 1,700
<br />(0-120)
<br />Upper reach
<br />140-170 78 2.6 64,120 2,137 822 1,112
<br />* Standard deviation.
<br />Table 5. - Side channel characteristics for the upper and lower reaches of the Colorado River,
<br />19891SMP, September 26, 1989 (flow at GS State Line gauge = 2,990 ft3/S)
<br />River-mile Channel No. Side channel/ Area Area/mile Mean size
<br /> mile (m~ (m~ (m~
<br />Lower reach
<br />0-20 4 0.2 8,882 444 2,220
<br />21-40 7 0.4 61,152 3,058 8,736
<br />41-60 4 0.2 26,164 1,308 6,541
<br />61-80 5 0.2 38,932 1,947 7,786
<br />81-100 8 0.4 97,729 4,886 12,216
<br />101-110 8 0.8 32,046 3,205 4,006
<br />Total reach 36 0.3 264,906 2,408 7,358
<br />(0-110)
<br />Upper reach
<br />140-170 25 0.8 370,118 12,337 14,805
<br />
<br />14
<br />
|