FLOOD10355

• County: Statewide
• Stream Name: Colorado River
• Title: Colorado River Basin Probable Maximum Floods, Hoover and Glen Canyon Dams
• Date: 9/1/1990
• Prepared By: US Department of the Interior Bureau of Reclaimation
• Floodplain - Doc Type: Floodplain Report/Masterplan

f-
W
~ 30000
I
W
c:
~ 25000
o
o
~ 20000
en
w
~ 15000
....J
o
;: 10000
....J
I
f-
~ 5000
~
~
:J
~
~
~

.9999 .999 .99 .9 .5 .1 .01 .001 .0001
PROBABILITY OF BEING EQUALED OR EXCEEDED IN ANY GIVEN YEAR

Figure 4.1 - Lake Powell Flood Volume Frequency Analysis
(Represents natural unregulated. undepleted conditions)

.9999 .999 .99 .9 .5 .1 .01 .001 .0001
PROBABILITY OF BEING EQUALED OR EXCEEDED IN ANY GIVEN YEAR
Figure 4.2 - Lake Mead Flood Volume Frequency Analysis
(Represents natural unregulated, undepleted conditions)

o

f-
W
w 30000
u.
W
c:
~25000
o
o
~20000
en
w
~ 15000
....J
o
;: 10000
....J
I
f-
~ 5000
~
~
::>
~
~
~

o

o

."1"..1",,1....1,,.. I...... ,

, I......., I....

49