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 9 to noon (for Class IV Tunnel Chute run boating).
 Scheduled release: 1000 cfs from 8 to noon (for Class IV Tunnel Chute run boating).
 Scheduled release: 800 to 1000 cfs from 4am to 7am or later (for Class II confluence boating and special events, see notes 1, 2, 3).
Note: The current water year type is Below Normal, and the following schedule reflects this.
Note: All information provided by Placer County Water Agency.

 

June 2022
SunMonTueWedThuFriSat
      11000 cfs
9am to noon
21000 cfs
9am to noon
31000 cfs
9am to noon
41000 cfs
8am to noon
51000 cfs
8am to noon
6
 
71000 cfs
9am to noon
81000 cfs
9am to noon
91000 cfs
9am to noon
101000 cfs
9am to noon
11800 cfs 4am to 8am, then 1000 cfs 8am to noon
121000 cfs
8am to noon
13
 
141000 cfs
9am to noon
151000 cfs
9am to noon
161000 cfs
9am to noon
171000 cfs
9am to noon
18800 cfs 4am to 8am, then 1000 cfs 8am to noon
191000 cfs
8am to noon
20
 
211000 cfs
9am to noon
221000 cfs
9am to noon
231000 cfs
9am to noon
241000 cfs
9am to noon
251000 cfs 4am to 7am, see Note 1
261000 cfs
8am to noon
27
 
281000 cfs
9am to noon
291000 cfs
9am to noon
301000 cfs
9am to noon
   

 

July 2022
SunMonTueWedThuFriSat
          11000 cfs
9am to noon
2800 cfs 4am to 8am, then 1000 cfs 8am to noon
31000 cfs
8am to noon
41000 cfs
9am to noon
51000 cfs
9am to noon
61000 cfs
9am to noon
71000 cfs
9am to noon
81000 cfs
9am to noon
91000 cfs
8am to noon
101000 cfs
8am to noon
11
 
121000 cfs
9am to noon
131000 cfs
9am to noon
141000 cfs
9am to noon
151000 cfs
9am to noon
161000 cfs 4am to 7am, see Note 2
171000 cfs
8am to noon
18
 
191000 cfs
9am to noon
201000 cfs
9am to noon
211000 cfs
9am to noon
221000 cfs
9am to noon
23800 cfs 4am to 8am, then 1000 cfs 8am to noon
241000 cfs
8am to noon
25
 
261000 cfs
9am to noon
271000 cfs
9am to noon
281000 cfs
9am to noon
291000 cfs
9am to noon
301000 cfs
8am to noon
311000 cfs
8am to noon
           

 

August 2022
SunMonTueWedThuFriSat
  1
 
21000 cfs
9am to noon
31000 cfs
9am to noon
41000 cfs
9am to noon
51000 cfs
9am to noon
6800 cfs 4am to 8am, then 1000 cfs 8am to noon
71000 cfs
8am to noon
8
 
91000 cfs
9am to noon
101000 cfs
9am to noon
111000 cfs
9am to noon
121000 cfs
9am to noon
131000 cfs
8am to noon
141000 cfs
8am to noon
15
 
161000 cfs
9am to noon
171000 cfs
9am to noon
181000 cfs
9am to noon
191000 cfs
9am to noon
20800 cfs 4am to 8am, then 1000 cfs 8am to noon
211000 cfs
8am to noon
22
 
231000 cfs
9am to noon
241000 cfs
9am to noon
251000 cfs
9am to noon
261000 cfs
9am to noon
271000 cfs
8am to noon
281000 cfs
8am to noon
29
 
301000 cfs
9am to noon
311000 cfs
9am to noon
     

 

September 2022
SunMonTueWedThuFriSat
        11000 cfs
9am to noon
21000 cfs
9am to noon
3800 cfs 4am to 8am, then 1000 cfs 8am to noon
41000 cfs
8am to noon
51000 cfs
9am to noon
61000 cfs
9am to noon
71000 cfs
9am to noon
8
 
91000 cfs
9am to noon
101000 cfs
8am to noon
111000 cfs
8am to noon
12
 
131000 cfs
9am to noon
141000 cfs
9am to noon
15
 
161000 cfs
9am to noon
17800 cfs 4am to 8am, then 1000 cfs 8am to noon
181000 cfs
8am to noon
19
 
201000 cfs
9am to noon
211000 cfs
9am to noon
22
 
231000 cfs
9am to noon
241000 cfs
8am to noon
251000 cfs
8am to noon
26
 
271000 cfs
9am to noon
281000 cfs
9am to noon
29
 
301000 cfs
9am to noon
 

Water Management Issues:

1.  Early releases (4am to 7am only) will be provided on Saturday June 25 for the Western States 100 race day.

2.  Early releases (4am to 7am only) will be provided on Saturday July 16 for the Tevis Cup race day.

3.  Early releases (800 cfs from 4am to 8am, followed by 1000 cfs until noon) will be provided on eight days, two in each month.  The 4am to 8am early releases are to support Class II confluence boating.

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

5.  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).

6.  Last day of recreation releases for this year will be September 30, as shown above.

7.  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.

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

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