US Army Corps of Engineers

Grand Coulee Dam

Thursday July 3, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 72.10 72.10 0.00 1286.10 957.80 328.30
2 67.80 67.80 0.00 1286.10 957.10 329.00
3 63.40 63.40 0.00 1286.20 956.70 329.50
4 66.70 66.70 0.00 1286.20 956.80 329.40
5 68.00 68.00 0.00 1286.20 957.00 329.20
6 71.90 71.90 0.00 1286.20 957.40 328.80
7 95.90 95.90 0.00 1286.20 959.20 327.00
8 103.10 103.10 0.00 1286.10 960.20 325.90
9 113.50 113.50 0.00 1286.10 961.00 325.10
10 117.90 117.90 0.00 1286.10 961.50 324.60
11 109.80 109.80 0.00 1286.10 961.20 324.90
12 106.10 106.10 0.00 1286.10 960.70 325.40
13 106.70 106.70 0.00 1286.10 960.60 325.50
14 107.80 107.80 0.00 1286.00 960.70 325.30
15 102.70 102.70 0.00 1286.00 960.40 325.60
16 106.50 106.50 0.00 1286.00 960.50 325.50
17 117.90 117.90 0.00 1285.90 961.30 324.60
18 134.30 134.30 0.00 1285.90 962.70 323.20
19 133.70 133.70 0.00 1285.90 963.20 322.70
20 128.00 128.00 0.00 1285.90 962.80 323.10
21 109.70 109.70 0.00 1286.00 961.40 324.60
22 98.10 98.00 0.10 1286.00 959.90 326.10
23 103.40 102.10 1.30 1286.00 960.20 325.80
24 99.80 99.80 0.00 1285.90 960.00 325.90
AVG 100.20 100.14 0.06 1286.05 960.01 326.04
MAX 134.30 134.30 1.30 1286.20 963.20 329.50
MIN 63.40 63.40 0.00 1285.90 956.70 322.70