CHANGE ORDER NOTICE - FLOWS TO INCREASE AT LEWISTON DAM, DEC. 23
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Abel, Kiana
Dec 20, 2024, 2:35:55 PM12/20/24
to in...@trrp.net, Abel, Kiana
For Immediate Release: December 20, 2024
Contact: Kiana Abel, 530-623-1800, ja...@usbr.gov
CHANGE ORDER NOTICE - FLOWS TO INCREASE AT LEWISTON DAM, DEC. 23
The Bureau of Reclamation Central Valley Operations has approved the Trinity River Restoration Program's request to raise river flows on the Trinity River from Lewiston Dam.
Please expect the following:
The release will begin the morning of Dec. 23 and peak at 6500 cubic feet per second
starting at midnight on Dec. 25. Flows will slowly ramp down to 300 cubic feet per second on Jan. 11, 2025.
The purpose of a synchronized flow is to use the power of a winter storm to maintain and form river complexity. By combining dam releases with a storm event, mainstem flows help to reduce the impact of sediment deposited from tributaries like Deadwood Creek
and recondition the riverbed for prime salmonid habitat and food production.
If you live along the river (or any tributaries), please make sure to move items from the river's edge.
If you would like to receive future Lewiston Dam change order notifications, sign up here:
Trinity_Releases (http://groups.google.com/group/trinity-releases/boxsubscribe)
To follow weather via National Weather Service, click here:
National Weather Service Radar
To contact the Trinity River Restoration Program: in...@trrp.net or 530-623-1800
Timing of Flow Thresholds for Water Year 2025 Synchronized Storm Event*
| Direction |
|
Date/Time |
|
Threshold |
|
|
| rising |
|
12/23/2024 8:00 AM |
|
350 |
|
start |
| rising |
|
12/24/2024 2:00 AM |
|
1500 |
|
|
| rising |
|
12/24/2024 10:00 AM |
|
3000 |
|
|
| rising |
|
12/24/2024 6:00 PM |
|
5000 |
|
|
| rising |
|
12/24/2024 10:00 PM |
|
6000 |
|
|
| peak |
|
12/25/2024 12:00 AM |
|
6500 |
|
(peak release) |
| descending |
|
12/25/2024 2:00 PM |
|
6000 |
|
|
| descending |
|
12/26/2024 10:00 AM |
|
5000 |
|
|
| descending |
|
12/28/2024 2:00 PM |
|
3000 |
|
|
| descending |
|
1/1/2025 12:00 AM |
|
1500 |
|
|
| descending |
|
1/11/2025 4:00 AM |
|
300 |
|
end |
*The above list is not a complete list. To view the full Lewiston Dam Change Order please see below.
|
date
|
time
|
from (cfs)
|
to (cfs)
|
|
12/23/2024
|
0800
|
300
|
350
|
|
1200
|
350
|
450
|
|
|
1400
|
450
|
600
|
|
|
1800
|
600
|
850
|
|
|
2000
|
850
|
1100
|
|
|
2200
|
1100
|
1350
|
|
|
12/24/2024
|
0200
|
1350
|
1600
|
|
0400
|
1600
|
1850
|
|
|
0600
|
1850
|
2100
|
|
|
0800
|
2100
|
2600
|
|
|
1000
|
2600
|
3100
|
|
|
1200
|
3100
|
3600
|
|
|
1400
|
3600
|
4100
|
|
|
1600
|
4100
|
4600
|
|
|
1800
|
4600
|
5100
|
|
|
2000
|
5100
|
5600
|
|
|
2200
|
5600
|
6100
|
|
|
12/25/2024
|
0001
|
6100
|
6500
|
|
0200
|
6500
|
6350
|
|
|
0600
|
6350
|
6200
|
|
|
1000
|
6200
|
6050
|
|
|
1400
|
6050
|
5900
|
|
|
1800
|
5900
|
5750
|
|
|
2200
|
5750
|
5500
|
|
|
12/26/2024
|
0200
|
5500
|
5300
|
|
0600
|
5300
|
5150
|
|
|
1000
|
5150
|
5000
|
|
|
1400
|
5000
|
4800
|
|
|
1800
|
4800
|
4600
|
|
|
2200
|
4600
|
4400
|
|
|
12/27/2024
|
0200
|
4400
|
4200
|
|
0600
|
4200
|
4050
|
|
|
1000
|
4050
|
3900
|
|
|
1400
|
3900
|
3800
|
|
|
1800
|
3800
|
3700
|
|
|
2200
|
3700
|
3600
|
|
|
12/28/2024
|
0200
|
3600
|
3450
|
|
0600
|
3450
|
3300
|
|
|
1000
|
3300
|
3150
|
|
|
1400
|
3150
|
3000
|
|
|
1800
|
3000
|
2900
|
|
|
2200
|
2900
|
2800
|
|
|
12/29/2024
|
0200
|
2800
|
2700
|
|
0600
|
2700
|
2600
|
|
|
1000
|
2600
|
2500
|
|
|
1600
|
2500
|
2400
|
|
|
2200
|
2400
|
2300
|
|
|
12/30/2024
|
0400
|
2300
|
2200
|
|
0800
|
2200
|
2100
|
|
|
1400
|
2100
|
2000
|
|
|
2000
|
2000
|
1900
|
|
|
12/31/2024
|
0200
|
1900
|
1800
|
|
0800
|
1800
|
1700
|
|
|
1600
|
1700
|
1600
|
|
|
1/1/2025
|
0001
|
1600
|
1500
|
|
1000
|
1500
|
1400
|
|
|
2000
|
1400
|
1300
|
|
|
1/2/2025
|
0600
|
1300
|
1200
|
|
1600
|
1200
|
1100
|
|
|
1/3/2025
|
0200
|
1100
|
1000
|
|
1600
|
1000
|
900
|
|
|
1/4/2025
|
0800
|
900
|
800
|
|
1/5/2025
|
0400
|
800
|
700
|
|
2000
|
700
|
600
|
|
|
1/6/2025
|
2200
|
600
|
500
|
|
1/8/2025
|
0400
|
500
|
450
|
|
1/9/2025
|
0400
|
450
|
400
|
|
1/10/2025
|
0600
|
400
|
350
|
|
1/11/2025
|
0400
|
350
|
300
|
Note: Trinity River Synchronization Flow
Ordered by: P. Manza
Kiana Abel
1313 S. Main St., Weaverville, CA 96093-1300 | 530-623-1800 (desk) | 530-739-9761 (cell) | ja...@usbr.gov
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