Dreamflows Trinity - Lewiston Dam Release Schedule - 2017
 
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Releases From Lewiston Dam - Historical - 2017

In the tables that follow, each date is color-coded according to the kind of release scheduled for that day:

ColorMeaning
 Scheduled release: 300 cfs below Lewiston Dam all day.
 Scheduled release: 500 cfs or more below Lewiston Dam all day.
 Ramping up/down from Lewiston during the day.
Note: All information provided by U.S. Bureau of Reclamation.

 

January 2017
SunMonTueWedThuFriSat
1300 cfs
 all day
2300 cfs
 all day
3300 cfs
 all day
4300 cfs
 all day
5300 cfs
 all day
6300 cfs
 all day
7300 cfs
 all day
8300 cfs
 all day
9300 cfs
 all day
10300 cfs
 all day
11300 cfs
 all day
12300 cfs
 all day
13300 cfs
 all day
14300 cfs
 all day
15300 cfs
 all day
16300 cfs
 all day
17300 cfs
 all day
18300 cfs
 all day
19300 cfs
 all day
20300 cfs
 all day
21300 cfs
 all day
22300 cfs
 all day
23300 cfs
 all day
24300 cfs
 all day
25300 cfs
 all day
26300 cfs
 all day
27300 cfs
 all day
28300 cfs
 all day
29300 cfs
 all day
30300 cfs
 all day
31300 cfs
 all day
       

 

February 2017
SunMonTueWedThuFriSat
      1300 cfs
 all day
2300 cfs
 all day
3300 cfs
 all day
4300 cfs
 all day
5300 cfs
 all day
6300 cfs
 all day
7300 cfs
 all day
8300 cfs
 all day
9300 cfs
 all day
10300 cfs
 all day
11300 cfs
 all day
12300 cfs
 all day
13300 cfs
 all day
14300 cfs
 all day
15300 cfs
 all day
16300 cfs
 all day
17300 cfs
 all day
18300 cfs
 all day
19300 cfs
 all day
20300 cfs
 all day
21300 cfs
 all day
22300 cfs
 all day
23300 cfs
 all day
24300 cfs
 all day
25300 cfs
 all day
26300 cfs
 all day
27300 cfs
 all day
28300 cfs
 all day
       

 

March 2017
SunMonTueWedThuFriSat
      1300 cfs
 all day
2300 cfs
 all day
3300 cfs
 all day
4300 cfs
 all day
5300 cfs
 all day
6300 cfs
 all day
7300 cfs
 all day
8300 cfs
 all day
9300 cfs
 all day
10300 cfs
 all day
11300 cfs
 all day
12300 cfs
 all day
13300 cfs
 all day
14300 cfs
 all day
15300 cfs
 all day
16300 cfs
 all day
17300 cfs
 all day
18300 cfs
 all day
19300 cfs
 all day
20300 cfs
 all day
21300 cfs
 all day
22300 cfs
 all day
23300 cfs
 all day
24300 cfs
 all day
25300 cfs
 all day
26300 cfs
 all day
27300 cfs
 all day
28300 cfs
 all day
29300 cfs
 all day
30300 cfs
 all day
31300 cfs
 all day
 

 

April 2017
SunMonTueWedThuFriSat
            1300 cfs
 all day
2300 cfs
 all day
3300 cfs
 all day
4300 cfs
 all day
5Ramping up
to 1,500 cfs
61,500 cfs
 all day
71,500 cfs
 all day
81,500 cfs
 all day
91,500 cfs
 all day
101,500 cfs
 all day
111,500 cfs
 all day
121,500 cfs
 all day
131,500 cfs
 all day
141,500 cfs
 all day
151,500 cfs
 all day
161,500 cfs
 all day
171,500 cfs
 all day
181,500 cfs
 all day
19Ramping down
to 1,100 cfs
20Ramping down
to 500 cfs
21400 cfs
 all day
22Ramping up
to 1,200 cfs
23Ramping up
to 2,500 cfs
24Ramping up
to 4,000 cfs
25Ramping up
to 7,000 cfs
26Ramping up
to 11,000 cfs
2711,000 cfs
 all day
2811,000 cfs
 all day
29Ramping down
to 9,000 cfs
30Ramping down
to 7,000 cfs
           

Water Management Issues:

1.  Times reflect releases from Lewiston Dam, and it is assumed that it takes approximately 12 hours for the water to get to Pigeon Point and 20 hours to get to Cedar Flat.  This is a good rule of thumb, though the actual flow travel time is flow dependent (the higher the flow, the less time it takes).  Here are some approximate observed numbers:
Lewiston Release Time to Pigeon Point Time to Cedar Flat
500 cfs13 hours24 hours
1000 cfs12 hours20 hours
1500 cfs10 hours14 hours
3000 cfs9 hours13 hours