Dreamflows Trinity - Lewiston Dam Release Schedule - 2018
 
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Releases From Lewiston Dam - Historical - 2018

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 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

 

April 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
16Change to
 400 cfs at 10pm
17Ramping up
to 1,800 cfs then
down to 1,650 cfs
18Ramping down
to 1,300 cfs
19Ramping down
to 700 cfs
20Change to
 650 cfs at 10pm
21Ramping down
to 500 cfs
22Ramping down
to 300 cfs
23Ramping up
to 450 cfs then
down to 350 cfs
24Ramping up
to 500 cfs
25Ramping up
to 600 cfs then
down to 550 cfs
26Ramping up
to 750 cfs then
down to 700 cfs
27Ramping up
to 950 cfs then
down to 800 cfs
28Ramping down
to 700 cfs then
up to 1,650 cfs
29Ramping down
to 1,300 cfs
30Ramping down
to 750 cfs
         

 

May 2018
SunMonTueWedThuFriSat
    1Ramping up
to 850 cfs then
down to 750 cfs
2Ramping up
to 950 cfs then
down to 800 cfs
3Ramping up
to 1,500 cfs then
down to 1,250 cfs
4Ramping up
to 1,700 cfs then
down to 1,450 cfs
5Ramping up
to 1,750 cfs then
down to 1,500 cfs
6Ramping up
to 1,700 cfs then
down to 1,500 cfs
7Ramping up
to 1,600 cfs then
down to 1,350 cfs
8Ramping up
to 1,550 cfs then
down to 1,300 cfs
9Ramping down
to 1,100 cfs then
up to 1,450 cfs
10Ramping down
to 1,250 cfs then
up to 1,450 cfs
11Ramping up
to 1,650 cfs then
down to 1,550 cfs
12Ramping down
to 1,450 cfs then
up to 1,600 cfs
13Ramping up
to 2,050 cfs then
down to 1,750 cfs
14Ramping up
to 1,950 cfs then
down to 1,700 cfs
15Ramping up
to 1,900 cfs then
down to 1,600 cfs
16Ramping down
to 1,500 cfs then
up to 1,650 cfs
17Ramping up
to 1,850 cfs then
down to 1,550 cfs
18Ramping up
to 1,750 cfs then
down to 1,500 cfs
19Ramping down
to 1,300 cfs then
up to 1,600 cfs
20Ramping down
to 1,350 cfs then
up to 1,650 cfs
21Ramping up
to 1,750 cfs then
down to 1,500 cfs
22Ramping up
to 1,700 cfs then
down to 1,450 cfs
23Ramping down
to 1,350 cfs then
up to 1,450 cfs
24Ramping up
to 1,650 cfs then
down to 1,400 cfs
25Ramping down
to 1,250 cfs then
up to 1,600 cfs
26Ramping up
to 1,750 cfs then
down to 1,500 cfs
27Ramping up
to 1,700 cfs then
down to 1,450 cfs
28Ramping down
to 1,350 cfs then
up to 1,450 cfs
29Ramping up
to 1,650 cfs then
down to 1,400 cfs
30Ramping down
to 1,300 cfs then
up to 1,400 cfs
31Ramping up
to 1,600 cfs then
down to 1,350 cfs
   

 

June 2018
SunMonTueWedThuFriSat
          1Ramping up
to 1,500 cfs then
down to 1,300 cfs
2Ramping up
to 1,450 cfs then
down to 1,150 cfs
3Ramping up
to 1,400 cfs then
down to 1,100 cfs
4Ramping down
to 1,000 cfs then
up to 1,100 cfs
5Ramping up
to 1,300 cfs then
down to 1,050 cfs
6Ramping down
to 900 cfs then
up to 1,350 cfs
7Ramping up
to 1,600 cfs then
down to 1,300 cfs
8Ramping up
to 1,350 cfs then
down to 1,100 cfs
9Ramping up
to 1,250 cfs then
down to 1,000 cfs
10Ramping up
to 1,200 cfs then
down to 900 cfs
11Ramping up
to 1,050 cfs then
down to 800 cfs
12Ramping up
to 1,000 cfs then
down to 750 cfs
13Ramping up
to 950 cfs then
down to 700 cfs
14Ramping up
to 900 cfs then
down to 650 cfs
15Ramping up
to 850 cfs then
down to 650 cfs
16Ramping up
to 800 cfs then
down to 600 cfs
17Ramping up
to 750 cfs then
down to 650 cfs
18Ramping up
to 700 cfs then
down to 600 cfs
19Ramping up
to 650 cfs then
down to 600 cfs
20Ramping up
to 650 cfs then
down to 550 cfs
21Ramping up
to 600 cfs then
down to 550 cfs
22Ramping up
to 600 cfs then
down to 500 cfs
23Ramping up
to 550 cfs then
down to 500 cfs
24Ramping up
to 550 cfs then
down to 450 cfs
25Ramping up
to 500 cfs then
down to 450 cfs
26Ramping up
to 500 cfs then
down to 450 cfs
27Ramping up
to 500 cfs then
down to 450 cfs
28Ramping up
to 500 cfs then
down to 450 cfs
29Ramping up
to 500 cfs then
down to 450 cfs
30450 cfs
all day

 

July 2018
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 750 cfs
27750 cfs
 all day
28Change to
 1250 cfs at 5:30pm
29Change to
 800 cfs at 8am
30800 cfs
 all day
31800 cfs
 all day
       

 

August 2018
SunMonTueWedThuFriSat
      1800 cfs
 all day
2800 cfs
 all day
3800 cfs
 all day
4800 cfs
 all day
5800 cfs
 all day
6800 cfs
 all day
7800 cfs
 all day
8800 cfs
 all day
9800 cfs
 all day
10800 cfs
 all day
11800 cfs
 all day
12800 cfs
 all day
13800 cfs
 all day
14800 cfs
 all day
15800 cfs
 all day
16800 cfs
 all day
17800 cfs
 all day
18800 cfs
 all day
19800 cfs
 all day
20800 cfs
 all day
21800 cfs
 all day
22800 cfs
 all day
23800 cfs
 all day
24700 cfs
 all day
25700 cfs
 all day
26700 cfs
 all day
27700 cfs
 all day
28700 cfs
 all day
29700 cfs
 all day
30700 cfs
 all day
31700 cfs
 all day
 

 

September 2018
SunMonTueWedThuFriSat
            1700 cfs
 all day
2700 cfs
 all day
3700 cfs
 all day
4700 cfs
 all day
5700 cfs
 all day
6700 cfs
 all day
7700 cfs
 all day
8700 cfs
 all day
9700 cfs
 all day
10700 cfs
 all day
11700 cfs
 all day
12700 cfs
 all day
13700 cfs
 all day
14700 cfs
 all day
15700 cfs
 all day
16700 cfs
 all day
17700 cfs
 all day
18700 cfs
 all day
19700 cfs
 all day
20700 cfs
 all day
21Ramping down
to 450 cfs
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
           

 

October 2018
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 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
 

Water Management Issues:

1.  The Hoopa Valley Tribe's Boat Dance Ceremony was not held this year (they are held 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