Floodplain Information Report Volume 3 Gunnison River from Delta to the Confluence with the Colorado River

• Basin: Gunnison
• Basin: Colorado Mainstem
• Title: Floodplain Information Report Volume 3 Gunnison River from Delta to the Confluence with the Colorado River
• Date: 3/1/1995
• Prepared For: The Recovery Implementaiton Program for Endangered Fish Species in the Upper Colorado River Basin
• Prepared By: CWCB
• Floodplain - Doc Type: Floodplain Report/Masterplan

MM M M M M M M M m i' m M MM r m m m
z
3
a
*
TABLE 6
GUNNISON RIVER FLOOD DEPTH SUMMARY
FLOOD DEPTH INITIALLY COMPUTED FROM TOP OF WATER DURING LOW FLOW PERIOD (11/94). VALUE
INCLUDES 4' ADDED AS AN AVERAGE DEPTH TO THE CHANNEL BOTTOM
WIDTH AT CROSS - SECTION; ACTUAL WIDTH VARIES WITHIN REACH
CANYON REACH DEPTHS NOT INCLUDED, AS DESCRIBED IN SECTION 4.3
CROSS - SECTION CA -CA' WAS ADDED AFTER CROSS - SECTIONS WERE INITIALLY DEVELOPED
The map- derived cross - section F -F' was not included since the field surveyed cross - section G -G' was used for this reach
SHOWN
STREAM
. FLdODDEPTHS� (FT)
WIIDTHS AT
.
REACH #
CR(3.55 SECTION
MILE :
t....F...L...CQ:ODPLAIN
CROSS SEGTIONSz
50 YEAR
1;00 YEAR
50 YEAR
1C 0 YEAR
1
DETAILED STUDY
(38 -43.5)
SEE FEMA
SEE FEMA
SEE FEMA
SEE FEMA
2
A -A'
37.5
12.73
13.2
725'
730'
3
CANYON
(34.5 -36)
3
3
3
3
4
B -B'
32
14.41
14.96
1095'
1105'
5
C -C'
26
11.3
11.63
2550
3010
6
CA-CA 14
25
13.3
13.76
7
D -D'
22
13.95
14.73
378'
387'
8
E -E'
21.5
16.03
16.39
310'
400'
9
CANYON
(10.5 -19)
3
3
3
3
10
G -G'*
9.5
16.91
17.38
1620'
1205'
11
CANYON
(4.5 -8)
3
3
3
3
12
H -H'
4
14.16
14.75
695'
700'
FLOOD DEPTH INITIALLY COMPUTED FROM TOP OF WATER DURING LOW FLOW PERIOD (11/94). VALUE
INCLUDES 4' ADDED AS AN AVERAGE DEPTH TO THE CHANNEL BOTTOM
WIDTH AT CROSS - SECTION; ACTUAL WIDTH VARIES WITHIN REACH
CANYON REACH DEPTHS NOT INCLUDED, AS DESCRIBED IN SECTION 4.3
CROSS - SECTION CA -CA' WAS ADDED AFTER CROSS - SECTIONS WERE INITIALLY DEVELOPED
The map- derived cross - section F -F' was not included since the field surveyed cross - section G -G' was used for this reach
SHOWN