Colorado Water Resources Circular No. 20

• Description: Colorado Water Resources Circular No. 20, Transit Losses and Travel Times for Reservoir Releases, Upper Arkansas River Basin, Colorado
• State: CO
• State: KS
• Basin: Arkansas
• Water Division: 2
• Date: 1/1/1973
• Author: Russell K. Livingston, U.S. Geological Survey, Colorado Division of Water Resources: Office of the State Engineer, Southeastern Colorado Water Conservancy District
• Title: Colorado Water Resources Circular No. 20, Transit Losses and Travel Times for Reservoir Releases, Upper Arkansas River Basin, Colorado
• Water Supply Pro - Doc Type: Report/Study

During recession at Colorado Canal
Final divertible discharge from column 9 abov4
Release recession began at 1100 hours
Time interval from beginning
of recession (hours)
0 -4
4 -8
8 -12
12 -16
16 -22
22 -32
Average divertible discharge
(fig. 11, ft /s)
379
272
178
105
44
5
436 ft /s
32
EXAMPLE 1
TRANSPORTATION LOSSES
r
RELEASE FROM Twin Lakes RESERVOIR TO Colorado Canal
Date of release: 5 -1 -68
Amount of release:
500 ft /s Duration of release: _ __days (_ hours)
Flow at Wellsville gaging
station .prior to release:
400 ft /s
(Call 539 -6487 for stage, obtain discharge from
table 2)
Time of travel (fig. 3):
53 hours
During recession at Colorado Canal
Final divertible discharge from column 9 abov4
Release recession began at 1100 hours
Time interval from beginning
of recession (hours)
0 -4
4 -8
8 -12
12 -16
16 -22
22 -32
Average divertible discharge
(fig. 11, ft /s)
379
272
178
105
44
5
436 ft /s
32
TRANSPORTATION LOSSES
Bank storage (fig. 6)
1
2
3
4
5
Average
Bank storage
Time interval
Maximum time
Actual time
bank storage
in time interval
(hours)
in hours
in interval
in interval
(col.
3 x col. 4,
(hours)
(ft /s)
hours x ft /s)
0 -1
1
1
705
705
1 -3
2
2
355
710
3 -11
8
8
190
1,520
11 -21
10
10
125
1,250
21 -72
51
51
70
3,570
72 -312
240
240
35
8,400
312+
- --
24
15
360
Totals
336
16,515
Charge for bank storage loss is 70 percent of
column 5 divided by duration of release:
34.4 ft /s
Inadvertent diversions
Charge for inadvertent diversion
losses (fig.
7):
45.0 ft /s
Evaporation
Surface area increase
(fig. 8):
280 acres
Charge for change in
surface area
(fig. 9):
4.2 ft /s
Charge for change in
river temperature
(fig.
10):
0 ft /s
TOTAL TRANSPORTATION LOSS-------------------------------------
--- -- - - - - --
83.6 ft /s
TOTAL TRANSPORTATION LOSS
(percent of
release) ------------------------------------------ - - - - --
16.7
DIVERSION SCHEDULES
Prior to
recession at Colorado
Canal
1 2
3
4
5
6 7
8
9
Average
Channel
Average
Time Maximum time
Release
bank storage
Inadvertent Evaporation storage
Total
divertible
interval in hours
discharge
(col. 4 above,
diversion
(ft /s) (fig. 4,
(cols. 4 -7,
discharge
( hours)
ft /s
ft /s)
(ft /s)
ft /s
ft /s)
(ft /s)
0 -1 1
500
705
45.0
4.2 395
1,149
- --
1-3 2
500
355
45.0
4.2 275
679
- --
3-11 8
500
190
45.0
4.2 125
364
136
11 -21 10
500
125
45.0
4.2 40
214
286
21 -72 51
500
70
45.0
4.2 2
121
379
72 -312 240
500
35
45.0
4.2 - --
84
416
312+ - --
500
15
45.0
4.2 - --
64
436
Release arrived at 1500
hours
During recession at Colorado Canal
Final divertible discharge from column 9 abov4
Release recession began at 1100 hours
Time interval from beginning
of recession (hours)
0 -4
4 -8
8 -12
12 -16
16 -22
22 -32
Average divertible discharge
(fig. 11, ft /s)
379
272
178
105
44
5
436 ft /s
32