Dreamflows Trinity - Lewiston Dam Release Schedule

Dreamflows Trinity - Lewiston Dam Release Schedule - 2017

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Releases From Lewiston Dam - Historical - 2017

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 2017
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 2017
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 2017
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 2017
Sun	Mon	Tue	Wed	Thu	Fri	Sat
						1300 cfs all day
2300 cfs all day	3300 cfs all day	4300 cfs all day	5Ramping up to 1,500 cfs	61,500 cfs all day	71,500 cfs all day	81,500 cfs all day
91,500 cfs all day	101,500 cfs all day	111,500 cfs all day	121,500 cfs all day	131,500 cfs all day	141,500 cfs all day	151,500 cfs all day
161,500 cfs all day	171,500 cfs all day	181,500 cfs all day	19Ramping down to 1,100 cfs	20Ramping down to 500 cfs	21400 cfs all day	22Ramping up to 1,200 cfs
23Ramping up to 2,500 cfs	24Ramping up to 4,000 cfs	25Ramping up to 7,000 cfs	26Ramping up to 11,000 cfs	2711,000 cfs all day	2811,000 cfs all day	29Ramping down to 9,000 cfs
30Ramping down to 7,000 cfs

May 2017
Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1Ramping down to 5,200 cfs	2Ramping down to 3,800 cfs	3Ramping down to 2,800 cfs	4Change to 2,700 cfs at noon	52,500 cfs all day	6Ramping down to 2,100 cfs
7Ramping down to 2,000 cfs then up to 2,100 cfs	8Change to 2,400 cfs at 4pm	92,400 cfs all day	10Ramping up to 5,400 cfs	115,400 cfs all day	125,400 cfs all day	135,400 cfs all day
145,400 cfs all day	15Change to 5,200 cfs at 8am	16Change to 5,000 cfs at noon	175,000 cfs all day	18Change to 4,800 cfs at 2pm	19Change to 4,700 cfs at 2pm	20Change to 4,600 cfs at 8am
21Change to 4,400 cfs at 2pm	22Change to 4,300 cfs at 6pm	23Change to 4,100 cfs at noon	24Change to 4,500 cfs at 8am	25Ramping down to 4,000 cfs	26Change to 4,500 cfs at 6am	27Ramping down to 3,900 cfs
284,400 cfs all day	29Change to 4,000 cfs at noon	30Change to 4,500 cfs at 8am	31Change to 4,200 cfs at 6am

June 2017
Sun	Mon	Tue	Wed	Thu	Fri	Sat
				1Change to 4,100 cfs at 2pm	2Change to 4,000 cfs at noon	3Change to 3,900 cfs at noon
4Change to 3,800 cfs at 10am	5Change to 3,700 cfs at noon	6Change to 3,600 cfs at noon	7Change to 3,500 cfs at 2pm	8Change to 3,400 cfs at 4pm	9Change to 3,300 cfs at 10pm	103,300 cfs all day
11Change to 3,200 cfs at 6am	12Change to 3,100 cfs at noon	13Change to 3,000 cfs at noon	14Change to 2,900 cfs at 4pm	15Change to 2,800 cfs at 6pm	16Change to 2,700 cfs at 8pm	172,700 cfs all day
18Change to 2,600 cfs at noon	19Change to 2,500 cfs at 2pm	20Change to 2,400 cfs at 10pm	212,400 cfs all day	22Change to 2,300 cfs at noon	23Change to 2,200 cfs at 4pm	242,200 cfs all day
25Change to 2,100 cfs at noon	26Change to 2,000 cfs at 2pm	272,000 cfs all day	282,000 cfs all day	292,000 cfs all day	302,000 cfs all day

July 2017
Sun	Mon	Tue	Wed	Thu	Fri	Sat
						12,000 cfs all day
2Change to 1,900 cfs at noon	31,900 cfs all day	4Ramping down to 1,700 cfs	5Ramping up to 1,800 cfs then down to 1,700 cfs	6Change to 1,600 cfs at 2pm	71,600 cfs all day	8Change to 1,500 cfs at noon
91,500 cfs all day	10Change to 1,400 cfs at noon	11Change to 1,300 cfs at 4pm	121,300 cfs all day	13Change to 1,300 cfs at 8am	14Ramping down to 1,200 cfs	15Ramping down to 1,100 cfs
16Ramping up to 1,200 cfs then down to 1,100 cfs	17Change to 1,200 cfs at 6am	181,200 cfs all day	191,200 cfs all day	201,200 cfs all day	211,200 cfs all day	22Ramping down to 1,000 cfs
231,000 cfs all day	24Ramping down to 900 cfs then back to 1,000 cfs	25900 cfs all day	26Change to 800 cfs at 6pm	27Ramping up to 900 cfs then back to 800 cfs	28800 cfs all day	29Ramping down to 700 cfs then back to 800 cfs
30Change to 700 cfs at 4am	31Change to 700 cfs at 10am

August 2017
Sun	Mon	Tue	Wed	Thu	Fri	Sat
		1700 cfs all day	2700 cfs all day	3700 cfs all day	4700 cfs all day	5Change to 600 cfs at noon
6600 cfs all day	7Change to 500 cfs at 6pm	8Ramping up to 600 cfs then down to 500 cfs	9500 cfs all day	10Change to 450 cfs at 4pm	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
20Ramping up to 1,050 cfs	21Ramping up to 2,650 cfs then down to 2,450 cfs	22Ramping down to 1,550 cfs	23Ramping down to 950 cfs	24Ramping down to 450 cfs	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 2017
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	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

October 2017
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 2017
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 2017
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 Aug 20 through Aug 24, 2017. For detailed ramping information, see this bulletin board post.

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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