Dreamflows Trinity - Lewiston Dam Release Schedule

Dreamflows Trinity - Lewiston Dam Release Schedule - 2025

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Releases From Lewiston Dam - Historical - 2025

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

Color	Meaning
	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 2025
Sun	Mon	Tue	Wed	Thu	Fri	Sat
			11,500 cfs all day	21,500 cfs all day	31,500 cfs all day	41,500 cfs all day
51,500 cfs all day	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
191,500 cfs all day	201,500 cfs all day	211,500 cfs all day	221,500 cfs all day	231,500 cfs all day	241,500 cfs all day	251,500 cfs all day
261,500 cfs all day	271,500 cfs all day	281,500 cfs all day	291,500 cfs all day	301,500 cfs all day	311,500 cfs all day

February 2025
Sun	Mon	Tue	Wed	Thu	Fri	Sat
						11,500 cfs all day
21,500 cfs all day	31,500 cfs all day	41,500 cfs all day	51,500 cfs all day	61,500 cfs all day	7Ramping up to 3,500 cfs	83,500 cfs all day
93,500 cfs all day	103,500 cfs all day	113,500 cfs all day	123,500 cfs all day	133,500 cfs all day	143,500 cfs all day	153,500 cfs all day
163,500 cfs all day	173,500 cfs all day	183,500 cfs all day	193,500 cfs all day	203,500 cfs all day	213,500 cfs all day	223,500 cfs all day
233,500 cfs all day	243,500 cfs all day	253,500 cfs all day	263,500 cfs all day	273,500 cfs all day	283,500 cfs all day

Water Management Issues:

1. The Hoopa Valley Tribe's Boat Dance Ceremony will be held this year (they are held only in odd-numbered years, typically late August).

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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