US Army Corps of Engineers

Grand Coulee Dam

Wednesday July 2, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 83.40 83.40 0.00 1286.30 959.70 326.60
2 76.30 76.30 0.00 1286.40 959.10 327.30
3 71.10 71.10 0.00 1286.40 958.50 327.90
4 68.50 68.50 0.00 1286.40 958.00 328.40
5 69.00 69.00 0.00 1286.40 957.80 328.60
6 75.00 75.00 0.00 1286.40 958.20 328.20
7 92.20 92.20 0.00 1286.40 959.40 327.00
8 94.60 94.60 0.00 1286.30 959.90 326.40
9 101.20 101.20 0.00 1286.40 960.40 326.00
10 99.70 99.70 0.00 1286.40 960.30 326.10
11 105.50 105.50 0.00 1286.40 960.60 325.80
12 104.70 104.70 0.00 1286.40 960.60 325.80
13 111.20 111.20 0.00 1286.30 960.90 325.40
14 109.20 109.20 0.00 1286.20 960.90 325.30
15 111.90 111.90 0.00 1286.20 961.00 325.20
16 115.90 115.90 0.00 1286.20 961.40 324.80
17 124.40 124.40 0.00 1286.20 962.10 324.10
18 139.40 139.40 0.00 1286.10 963.30 322.80
19 148.70 148.70 0.00 1286.10 964.70 321.40
20 134.30 134.30 0.00 1286.10 963.90 322.20
21 122.80 122.80 0.00 1286.10 962.80 323.30
22 115.20 115.00 0.20 1286.10 962.00 324.10
23 92.50 91.00 1.50 1286.10 960.30 325.80
24 80.50 80.50 0.00 1286.10 958.80 327.30
AVG 101.97 101.90 0.07 1286.27 960.61 325.66
MAX 148.70 148.70 1.50 1286.40 964.70 328.60
MIN 68.50 68.50 0.00 1286.10 957.80 321.40