Dreamflows Middle Fork American - Oxbow Release Schedule
 
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Releases Below Ralston Dam

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

ColorMeaning
 No scheduled release planned for this day.
 Scheduled release: 1000 cfs from 8 or 8:30 am to 11 or 11:30am (for Class IV Tunnel Chute run boating).
 Scheduled release: 1000 cfs from 4am to 7am (for Class II confluence boating).
Note: The current water year type is Critical, and the following schedule reflects this.
Note: All information provided by Placer County Water Agency.

 

May 2021
SunMonTueWedThuFriSat
            1
 
2
 
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
 
291000 cfs
8:30am to 11:30am
301000 cfs
8:30am to 11:30am
311000 cfs
4am to 9am
         

 

June 2021
SunMonTueWedThuFriSat
    1
 
21000 cfs
8am to 11am
3
 
41000 cfs
8am to 11am
51000 cfs
8:30am to 11:30am
61000 cfs
8:30am to 11:30am
7
 
8
 
91000 cfs
8am to 11am
10
 
111000 cfs
8am to 11am
121000 cfs
8:30am to 11:30am
131000 cfs
8:30am to 11:30am
14
 
15
 
161000 cfs
8am to 11am
17
 
181000 cfs
8am to 11am
191000 cfs
8:30am to 11:30am
201000 cfs
8:30am to 11:30am
21
 
22
 
231000 cfs
8am to 11am
24
 
251000 cfs
8am to 11am
261000 cfs
4am to 7am
271000 cfs
8:30am to 11:30am
28
 
29
 
301000 cfs
8am to 11am
     

 

July 2021
SunMonTueWedThuFriSat
        1
 
21000 cfs
8am to 11am
31000 cfs
8:30am to 11:30am
41000 cfs
8:30am to 11:30am
5
 
6
 
71000 cfs
8am to 11am
8
 
91000 cfs
8am to 11am
101000 cfs
8:30am to 11:30am
111000 cfs
8:30am to 11:30am
12
 
13
 
141000 cfs
8am to 11am
15
 
161000 cfs
8am to 11am
171000 cfs
8:30am to 11:30am
181000 cfs
8:30am to 11:30am
19
 
20
 
211000 cfs
8am to 11am
22
 
231000 cfs
8am to 11am
241000 cfs
4am to 7am
251000 cfs
8:30am to 11:30am
26
 
27
 
281000 cfs
8am to 11am
29
 
301000 cfs
8am to 11am
311000 cfs
8:30am to 11:30am

 

August 2021
SunMonTueWedThuFriSat
11000 cfs
8:30am to 11:30am
2
 
3
 
41000 cfs
8am to 11am
5
 
61000 cfs
8am to 11am
71000 cfs
8:30am to 11:30am
81000 cfs
8:30am to 11:30am
9
 
10
 
111000 cfs
8am to 11am
12
 
131000 cfs
8am to 11am
141000 cfs
8:30am to 11:30am
151000 cfs
8:30am to 11:30am
16
 
17
 
181000 cfs
8am to 11am
19
 
201000 cfs
8am to 11am
211000 cfs
8:30am to 11:30am
221000 cfs
8:30am to 11:30am
23
 
24
 
251000 cfs
8am to 11am
26
 
271000 cfs
8am to 11am
281000 cfs
8:30am to 11:30am
291000 cfs
8:30am to 11:30am
30
 
31
 
       

 

September 2021
SunMonTueWedThuFriSat
      11000 cfs
8am to 11am
2
 
31000 cfs
8am to 11am
41000 cfs
8:30am to 11:30am
51000 cfs
8:30am to 11:30am
6
 
7
 
8
 
9
 
10
 
111000 cfs
8:30am to 11:30am
12
 
13
 
14
 
15
 
16
 
17
 
181000 cfs
8:30am to 11:30am
19
 
20
 
21
 
22
 
23
 
24
 
251000 cfs
8:30am to 11:30am
26
 
27
 
28
 
29
 
30
 
   

Water Management Issues:

1.  Early releases (4am to 7am) will be provided on four days; three of them are shown dark green in the above schedule.  Saturday June 26 is the Western States 100 race day.  July 24 is the Tevis Cup race day.  Note that releases are extended an extra two hours on Memorial Day (May 31) to 9am.  The fourth additional early release date is TBD.

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

3.  Times reflect flows at the gauge above Tunnel Chute.  From the Tunnel Chute gauge, it is estimated that it takes 6 hours for flows to reach the Ruck-a-Chucky/Drivers Flat area, and about 10 hours to reach the North Fork confluence.  (It takes one to two hours for the water to travel from Oxbow Powerhouse to the gauge above Tunnel Chute).

4.  Last day of recreation releases for this year will be September 25, as shown above.

5.  Releases shown are minimum releases.  Actual releases may be higher or longer than shown.  In addition, sudden higher or lower (or no) releases may result from emergency mechanical or electrical conditions.

6.  Before heading out, be sure to check the relevant Dreamflows flow report and Bulletin Board thread to determine current and expected release trends.

7.  Users are urged to use caution and to wear all appropriate personal protective equipment.