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 is not yet known.
 Scheduled release: 500 cfs or more below Lewiston Dam all day.
 Ramp up/down from Lewiston during the day.
 Estimated release based on most recent scheduled release.
Note: All information provided by U.S. Bureau of Reclamation.

 

September 2016
SunMonTueWedThuFriSat
        11,250 cfs
 all day
2Change to
 1,200 cfs at 6am
31200 cfs
 all day
41200 cfs
 all day
51200 cfs
 all day
61200 cfs
 all day
7Ramping down
to 1,000 cfs
81000 cfs
 all day
91000 cfs
 all day
101000 cfs
 all day
111000 cfs
 all day
121000 cfs
 all day
131000 cfs
 all day
141000 cfs
 all day
151000 cfs
 all day
161000 cfs
 all day
171000 cfs
 all day
181000 cfs
 all day
191000 cfs
 all day
201000 cfs
 all day
211000 cfs
 all day
221000 cfs
 all day
23Change to
 900 cfs at 6am
24Change to
 800 cfs at 6am
25Change to
 700 cfs at 6am
26Change to
 600 cfs at 6am
27Ramping down
to 450 cfs
28450 cfs
 all day
29450 cfs
 all day
30450 cfs
 all day
 

 

October 2016
SunMonTueWedThuFriSat
            1450 cfs
all day
2450 cfs
all day
3
 
4
 
5
 
6
 
7
 
8
 
9
 
10
 
11
 
12
 
13
 
14
 
15
 
16
 
17
 
18
 
19
 
20
 
21
 
22
 
23
 
24
 
25
 
26
 
27
 
28
 
29
 
30
 
31
 
         

Water Management Issues:

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

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

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

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