Dreamflows Trinity - Lewiston Dam Release Schedule

Dreamflows Trinity - Lewiston Dam Release Schedule - 2019

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Releases From Lewiston Dam - Historical - 2019

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

Color	Meaning
	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 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
		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 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
					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 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
					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 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
	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
14Ramping up to 1,050 cfs	15Ramping up to 4,200 cfs then down to 3,900 cfs	16Ramping down to 2,700 cfs	17Ramping up to 9,850 cfs then down to 9,100 cfs	18Ramping down to 6,200 cfs	19Ramping down to 4,100 cfs	20Ramping down to 3,100 cfs then up to 3,150 cfs
21Ramping down to 2,450 cfs then up to 2,800 cfs	22Ramping down to 2,350 cfs then up to 2,600 cfs	23Ramping down to 2,150 cfs then up to 2,400 cfs	24Ramping down to 1,950 cfs then up to 2,250 cfs	25Ramping down to 1,850 cfs then up to 2,150 cfs	26Ramping down to 1,800 cfs then up to 2,100 cfs	27Ramping down to 1,750 cfs then up to 2,050 cfs
28Ramping down to 1,800 cfs then up to 3,050 cfs	29Ramping up to 10,900 cfs then down to 10,300 cfs	30Ramping down to 7,000 cfs

May 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
			1Ramping down to 3,500 cfs	23,500 cfs all day	33,500 cfs all day	4Ramping down to 3,250 cfs
5Ramping down to 3,050 cfs	6Ramping down to 2,850 cfs	7Ramping down to 2,750 cfs	8Change to 2,700 cfs at 10pm	9Change to 2,650 cfs at 8pm	10Change to 2,600 cfs at noon	11Change to 2,550 cfs at 8am
122,550 cfs all day	132,500 cfs all day	142,500 cfs all day	15Ramping up to 2,850 cfs	16Ramping up to 3,450 cfs	17Ramping down to 2,900 cfs then up to 3,300 cfs	18Ramping up to 6,650 cfs
19Ramping up to 9,000 cfs then down to 6,900 cfs	20Ramping down to 4,350 cfs	21Ramping down to 3,300 cfs	22Ramping down to 2,900 cfs	23Ramping down to 2,500 cfs	24Ramping down to 2,400 cfs then up to 4,000 cfs	25Ramping down to 3,000 cfs
26Ramping down to 2,600 cfs	27Ramping down to 2,200 cfs	28Ramping up to 2,600 cfs	29Ramping down to 2,450 cfs	30Change to 2,400 cfs at noon	31Change to 2,350 cfs at noon

June 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
						1Ramping down to 2,200 cfs
2Change to 2,150 cfs at noon	3Change to 2,100 cfs at noon	42,100 cfs all day	5Ramping up to 3,100 cfs	6Ramping down to 2,600 cfs then up to 3,700 cfs	7Ramping up to 3,900 cfs then down to 3,400 cfs	8Ramping down to 2,550 cfs
9Ramping down to 2,250 cfs	10Ramping down to 2,150 cfs	11Change to 2,100 cfs at noon	12Change to 2,050 cfs at noon	13Change to 2,000 cfs at noon	14Change to 1,950 cfs at noon	15Change to 1,900 cfs at noon
16Change to 1,850 cfs at noon	17Change to 1,800 cfs at noon	18Change to 1,750 cfs at noon	19Change to 1,700 cfs at noon	20Change to 1,750 cfs at noon	21Change to 1,800 cfs at noon	22Ramping up to 2,000 cfs
23Ramping up to 2,700 cfs then down to 2,300 cfs	24Ramping down to 2,000 cfs	25Ramping down to 1,900 cfs then up to 2,050 cfs	26Ramping up to 3,400 cfs then down to 3,150 cfs	27Ramping down to 2,550 cfs	28Ramping down to 2,250 cfs	29Change to 2,200 cfs at noon
30Change to 2,100 cfs at noon

July 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1Change to 2,000 cfs at 2pm	2Ramping down to 1,900 cfs	3Ramping down to 1,800 cfs	4Ramping down to 1,700 cfs	5Ramping down to 1,600 cfs	6Ramping down to 1,500 cfs
7Ramping down to 1,400 cfs	8Ramping down to 1,300 cfs	9Ramping down to 1,200 cfs	10Change to 1,150 cfs at noon	11Change to 1,100 cfs at noon	12Change to 1,050 cfs at noon	13Change to 1,000 cfs at noon
14Change to 950 cfs at noon	15950 cfs all day	16Change to 900 cfs at noon	17900 cfs all day	18Change to 850 cfs at noon	19850 cfs all day	20Change to 800 cfs at noon
21800 cfs all day	22Change to 750 cfs at noon	23750 cfs all day	24750 cfs all day	25Change to 700 cfs at noon	26700 cfs all day	27700 cfs all day
28Change to 650 cfs at noon	29650 cfs all day	30Change to 600 cfs at noon	31600 cfs all day

August 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
				1Change to 550 cfs at noon	2550 cfs all day	3Change to 500 cfs at noon
4500 cfs all day	5500 cfs all day	6Change to 450 cfs at noon	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	26450 cfs all day	27450 cfs all day	28450 cfs all day	29450 cfs all day	30450 cfs all day	31450 cfs all day

September 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
1Ramping up to 1,300 cfs	2Ramping up to 2,650 cfs then down to 2,250 cfs	3Ramping down to 1,450 cfs	4Ramping down to 850 cfs	5Ramping down to 450 cfs	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	18Ramping up to 550 cfs	19Ramping down to 450 cfs then up to 550 cfs	20Ramping up to 550 cfs	21Ramping down to 450 cfs then up to 550 cfs
22Ramping down to 450 cfs	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 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
		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 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
					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

December 2019
Sun	Mon	Tue	Wed	Thu	Fri	Sat
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

Water Management Issues:

1. The release for the Hoopa Valley Tribe's Boat Dance Ceremony (which is held in odd-numbered years) went from Sep 1 through Sep 5, 2019.

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 cfs	13 hours	24 hours
1000 cfs	12 hours	20 hours
1500 cfs	10 hours	14 hours
3000 cfs	9 hours	13 hours

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