US Army Corps of Engineers

Grand Coulee Dam

Tuesday March 10, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 151.10 151.10 0.00 1257.60 965.90 291.70
2 146.90 146.90 0.00 1257.40 965.60 291.80
3 138.90 138.90 0.00 1257.40 965.20 292.20
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AVG 145.63 145.63 0.00 1257.47 965.57 291.90
MAX 151.10 151.10 0.00 1257.60 965.90 292.20
MIN 138.90 138.90 0.00 1257.40 965.20 291.70