US Army Corps of Engineers

Chief Joseph Dam

Wednesday March 18, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadAverage Forebay ElevationAverage Tailwater Elevation
1 89.40 89.40 0.00 953.40 782.30 171.10 953.30 782.30
2 76.50 76.50 0.00 953.40 781.70 171.70 953.40 781.80
3 75.70 75.70 0.00 953.40 781.40 172.00 953.60 781.70
4 75.50 75.50 0.00 953.30 781.60 171.70 953.40 781.50
5 95.50 95.50 0.00 952.80 782.60 170.20 953.10 782.30
6 127.40 127.40 0.00 952.20 783.60 168.60 952.40 782.90
7 122.50 122.50 0.00 952.20 784.00 168.20 952.20 783.60
8 138.90 138.90 0.00 952.30 783.80 168.50 952.20 784.00
9 100.90 100.90 0.00 952.90 782.20 170.70 952.60 782.70
10 83.90 83.90 0.00 953.00 781.90 171.10 953.00 782.00
11 87.20 87.20 0.00 953.00 781.90 171.10 953.00 781.90
12 89.40 89.40 0.00 953.10 782.20 170.90 953.00 782.10
13 88.60 88.60 0.00 953.10 781.90 171.20 953.10 782.00
14 83.40 83.40 0.00 953.20 781.30 171.90 953.10 781.50
15 80.50 80.50 0.00 953.30 781.40 171.90 953.20 781.30
16 85.50 85.50 0.00 953.10 781.60 171.50 953.20 781.40
17 95.10 95.10 0.00 952.80 781.90 170.90 952.90 781.60
18 119.40 119.40 0.00 952.50 782.90 169.60 952.60 782.70
19 126.80 126.80 0.00 952.60 783.10 169.50 952.50 783.10
20 131.00 131.00 0.00 952.80 783.80 169.00 952.70 783.40
21 135.50 135.50 0.00 953.20 783.50 169.70 953.00 783.80
22 130.60 130.60 0.00 953.50 783.20 170.30 953.30 783.60
23 107.80 107.80 0.00 953.80 782.70 171.10 953.80 782.60
24 99.80 99.80 0.00 953.90 782.40 171.50 953.90 782.40
AVG 101.95 101.95 0.00 953.03 782.45 170.58 953.02 782.43
MAX 138.90 138.90 0.00 953.90 784.00 172.00 953.90 784.00
MIN 75.50 75.50 0.00 952.20 781.30 168.20 952.20 781.30