US Army Corps of Engineers

Chief Joseph Dam

Friday July 31, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadAverage Forebay ElevationAverage Tailwater Elevation
1 87.40 87.40 0.00 952.50 781.00 171.50 952.50 781.20
2 88.40 88.40 0.00 952.50 781.80 170.70 952.50 781.60
3 76.10 76.10 0.00 952.80 781.10 171.70 952.70 781.10
4 75.70 75.70 0.00 952.70 781.40 171.30 952.80 781.30
5 74.30 74.30 0.00 952.50 781.10 171.40 952.60 781.30
6 73.80 73.80 0.00 952.60 781.20 171.40 952.50 781.10
7 69.40 69.40 0.00 952.60 780.80 171.80 952.60 780.80
8 74.50 74.50 0.00 952.50 780.60 171.90 952.50 780.50
9 93.20 93.20 0.00 952.40 782.00 170.40 952.30 781.60
10 113.00 113.00 0.00 952.00 783.00 169.00 952.20 782.70
11 129.20 129.20 0.00 951.70 784.40 167.30 951.80 783.70
12 127.10 127.10 0.00 951.60 784.20 167.40 951.70 784.00
13 126.60 126.60 0.00 951.60 784.10 167.50 951.60 784.10
14 127.30 127.30 0.00 951.40 784.30 167.10 951.50 784.20
15 140.00 140.00 0.00 951.30 785.20 166.10 951.40 784.70
16 141.50 141.50 0.00 951.60 784.40 167.20 951.50 784.80
17 133.60 133.60 0.00 951.90 784.40 167.50 951.90 784.38
18 139.50 139.50 0.00 952.00 784.60 167.40 952.00 784.60
19 139.30 139.30 0.00 952.30 784.60 167.70 952.10 784.60
20 137.10 137.10 0.00 952.80 784.30 168.50 952.60 784.40
21 135.80 135.80 0.00 953.50 784.00 169.50 953.60 784.20
22 120.50 120.50 0.00 954.40 782.10 172.30 951.90 783.40
23 104.10 104.10 0.00 954.70 783.20 171.50 954.60 782.50
24 80.20 80.20 0.00 955.00 781.20 173.80 955.00 781.10
AVG 108.65 108.65 0.00 952.54 782.88 169.66 952.43 782.83
MAX 141.50 141.50 0.00 955.00 785.20 173.80 955.00 784.80
MIN 69.40 69.40 0.00 951.30 780.60 166.10 951.40 780.50
BUILDING STRONG®