WSP01274

• File Number: 8135.300
• Description: Ditch Companies - Catlin
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 1/1/1973
• Author: USGS
• Title: Colorado Water Resources-circular Number 20 - Transit Losses and Travel Times for Reservoir Releases - Upper Arkansas River Basin - Colorado
• Water Supply Pro - Doc Type: Report/Study

1)167

EXAMPLE 6

RELEASE FROM

Clear Creek

Colorado Canal

RESERVOIR TO

~ate of release: 6-19-72 Amount of release: ~ft3/s

Flow at Wellsville gaging station prior to release: l.OOOft3/s
(Call 539-6487 for stage, obtain discharge fram t~2)

Duration of release: ~days ~hour8)

Time of travel (fig. 3): ~hour8

2

TRANSPORTATION LOSSES
Bank storage (fig. 6)
3

4
Average
bank atorage
in interval
(ft'/al

100
50
30
20
10
5
o

Time interval
(hours)

Maximum time
in hours

Actual time
in interval
(houTs)

I
2
8
10
51
240
24

0-1
1-3
3-11
11-21
21-72
)2-312
312+

1
2
8
10
51
240

Totals 336

5
Bank storage
in time interval
(col. 3 x col. 4,
hours )( ftJ/s)

100
100
240
200
510
1,200
o

2,350

Charge for bank storage 10s8 18 70 percent of column S divided by duration of release:
Inadvertent diversions
Charge for inadvertent diversion losses (fig. 7):
Evaporation
Surface area increase (fig. B): 40 Bcres
Charge for change in surface area~ 9):
Charge for change in river temperature (fig. 10):

TOTAL TRANSPORTATION LOSS----------------------------------------------------------------_____
TOTAL TRANSPORTATION LOSS (percent of release)-------------------------------------------_____

~ft3/s
....!2.:.Lft3/s

0.5 Et3/s
o ft3/s

24.4 ft3/s
24.4 %

.'

DIVERSION SCHEDULES
Prior to recession at Colorado Cana I
2 3 4 5 6 7 8
Average Channel
Time Maximum time Release bank storage Inadvertent Evaporation storage Total
interval in hours discharge (col. 4 above. diversion (ft';a) (fi'j" 4, (cols. 4-7.
(houre) (ft3/s> ft3/s) (ft';a) ft Is) ftJ/s)
0-1 1 100 100 19.0 0.5 70 190
1-3 2 100 50 19.0 ,5 55 125
3-11 8 100 30 19.0 ,5 10 59
11-21 10 100 20 19.0 .5 0 0
21-72 51 100 10 19.0 .5 30
72-312 240 lOa 5 19.0 .5 24
312+ 100 0 19.0 .5 20

Release arrived at 1430 hours

9
Average
divertible
di.scharge
(ft';a)

41
60
70
76
80

During recession at Colorado Canal

Final divertible discharge from column 9 above------------------------------~--------------------
Release recession began at 0200 hours

Time interval from beginning
of recession (hours)

0-4
4-8
8-12
12-16
16-22
22-32

Average divertible discharge
(fl.. 11. ft';a)
62
33
l3
3
o
o

.

-3.!1...- f t 3/8

37