Dreamflows Trinity - Lewiston Dam Release Schedule
 
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Releases From Lewiston Dam

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

ColorMeaning
 Scheduled release: less than 450 cfs below Lewiston Dam all day.
 Scheduled release: 450 cfs below Lewiston Dam all day.
 Ramp up/down from Lewiston during the day.
Note: All scheduled release information provided by U.S. Bureau of Reclamation.

 

October 2017
SunMonTueWedThuFriSat
1450 cfs
 all day
2450 cfs
 all day
3450 cfs
 all day
4450 cfs
 all day
5450 cfs
 all day
6450 cfs
 all day
7450 cfs
 all day
8450 cfs
 all day
9450 cfs
 all day
10450 cfs
 all day
11450 cfs
 all day
12450 cfs
 all day
13450 cfs
 all day
14Change to
 400 cfs at 8am
15Change to
 350 cfs at 8am
16Change to
 300 cfs at 8am
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
       

 

November 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
   

 

December 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
           

 

January 2018
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 2018
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 2018
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

Water Management Issues:

1.  The above schedule is based on information provided by the U.S. Bureau of Reclamation.

2.  Detailed scheduled release information for the next few days is shown on this graph.

3.  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