US Army Corps of Engineers

Grand Coulee Dam

Tuesday April 29, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 109.40 109.40 0.00 1265.80 961.50 304.30
2 106.20 106.20 0.00 1265.70 960.90 304.80
3 101.20 101.20 0.00 1265.60 960.50 305.10
4 100.60 100.60 0.00 1265.70 960.40 305.30
5 101.30 101.30 0.00 1265.60 960.20 305.40
6 136.10 136.10 0.00 1265.50 962.80 302.70
7 120.00 120.00 0.00 1265.40 962.70 302.70
8 98.30 98.30 0.00 1265.40 960.90 304.50
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AVG 109.14 109.14 0.00 1265.59 961.24 304.35
MAX 136.10 136.10 0.00 1265.80 962.80 305.40
MIN 98.30 98.30 0.00 1265.40 960.20 302.70