US Army Corps of Engineers

Grand Coulee Dam

Monday September 1, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 67.50 67.50 0.00 1276.70 958.40 318.30
2 59.00 59.00 0.00 1276.60 957.40 319.20
3 55.30 55.30 0.00 1276.50 957.20 319.30
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AVG 60.60 60.60 0.00 1276.60 957.67 318.93
MAX 67.50 67.50 0.00 1276.70 958.40 319.30
MIN 55.30 55.30 0.00 1276.50 957.20 318.30