Dreamflows Trinity - Lewiston Dam Release Schedule - 2022
 
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Releases From Lewiston Dam - Historical - 2022

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: 450 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 2022
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 2022
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 2022
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 2022
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
15Ramping up
to 1,000 cfs
16Ramping down
to 600 cfs then
up to 700 cfs
17Ramping down
to 450 cfs
18450 cfs
 all day
19Ramping up
to 3,600 cfs
20Ramping up
to 6,000 cfs
21Ramping down
to 4,800 cfs
22Ramping down
to 3,400 cfs
23Ramping down
to 2,200 cfs
24Ramping down
to 1,800 cfs
251,800 cfs
 all day
26Change to
 1,900 cfs at noon
27Change to
 2,000 cfs at noon
282,000 cfs
 all day
292,000 cfs
 all day
302,000 cfs
 all day

 

May 2022
SunMonTueWedThuFriSat
12,000 cfs
 all day
22,000 cfs
 all day
32,000 cfs
 all day
42,000 cfs
 all day
5Change to
 1,900 cfs at noon
61,900 cfs
 all day
7Change to
 1,800 cfs at noon
81,800 cfs
 all day
91,800 cfs
 all day
101,800 cfs
 all day
111,800 cfs
 all day
121,800 cfs
 all day
131,800 cfs
 all day
14Ramping down
to 1,200 cfs
15Ramping down
to 600 cfs
16Ramping down
to 450 cfs
17450 cfs
 all day
18450 cfs
 all day
19450 cfs
 all day
20450 cfs
 all day
21450 cfs
 all day
22450 cfs
 all day
23450 cfs
 all day
24450 cfs
 all day
25450 cfs
 all day
26450 cfs
 all day
27450 cfs
 all day
28450 cfs
 all day
29450 cfs
 all day
30450 cfs
 all day
31450 cfs
 all day
       

 

June 2022
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
14450 cfs
 all day
15450 cfs
 all day
16450 cfs
 all day
17450 cfs
 all day
18450 cfs
 all day
19450 cfs
 all day
20450 cfs
 all day
21450 cfs
 all day
22450 cfs
 all day
23450 cfs
 all day
24450 cfs
 all day
25450 cfs
 all day
26450 cfs
 all day
27450 cfs
 all day
28450 cfs
 all day
29450 cfs
 all day
30450 cfs
 all day
   

 

July 2022
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
14450 cfs
 all day
15450 cfs
 all day
16450 cfs
 all day
17450 cfs
 all day
18450 cfs
 all day
19450 cfs
 all day
20450 cfs
 all day
21450 cfs
 all day
22450 cfs
 all day
23450 cfs
 all day
24450 cfs
 all day
25450 cfs
 all day
26450 cfs
 all day
27450 cfs
 all day
28450 cfs
 all day
29450 cfs
 all day
30450 cfs
 all day
31450 cfs
 all day
           

 

August 2022
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
14450 cfs
 all day
15450 cfs
 all day
16450 cfs
 all day
17450 cfs
 all day
18450 cfs
 all day
19450 cfs
 all day
20450 cfs
 all day
21450 cfs
 all day
22450 cfs
 all day
23450 cfs
 all day
24450 cfs
 all day
25450 cfs
 all day
26Ramping up
to 1,050 cfs
271,050 cfs
 all day
281,050 cfs
 all day
291,050 cfs
 all day
301,050 cfs
 all day
311,050 cfs
 all day
     

Water Management Issues:

1.  The Hoopa Valley Tribe's Boat Dance Ceremony will not be held this year (they are held only in odd-numbered years, typically late August).

2.  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