US Army Corps of Engineers

Chief Joseph Dam

Wednesday September 16, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadAverage Forebay ElevationAverage Tailwater Elevation
1 38.30 38.30 0.00 953.00 778.40 174.60 953.10 778.20
2 42.40 42.40 0.00 953.10 778.60 174.50 953.10 778.50
3 39.90 39.90 0.00 953.50 778.30 175.20 953.20 778.40
4 40.30 40.30 0.00 953.30 778.60 174.70 953.30 778.60
5 42.00 42.00 0.00 953.10 779.00 174.10 953.30 778.80
6 47.60 47.60 0.00 953.10 779.20 173.90 953.10 779.10
7 44.20 44.20 0.00 953.30 779.50 173.80 953.20 779.00
8 53.90 53.90 0.00 953.30 779.20 174.10 953.30 779.60
9 43.20 43.20 0.00 953.30 779.40 173.90 953.30 779.20
10 45.60 45.60 0.00 953.30 779.90 173.40 953.30 779.70
11 49.50 49.50 0.00 953.30 779.50 173.80 953.20 779.90
12 33.20 33.20 0.00 953.30 779.90 173.40 953.30 779.40
13 33.20 33.20 0.00 953.30 779.60 173.70 953.30 779.80
14 29.30 29.30 0.00 953.30 779.40 173.90 953.20 779.60
15 25.90 25.90 0.00 953.30 779.90 173.40 953.30 779.60
16 37.10 37.10 0.00 953.00 779.90 173.10 953.20 779.90
17 47.40 47.40 0.00 953.00 780.60 172.40 953.00 780.30
18 61.50 61.50 0.00 952.80 780.60 172.20 952.90 780.30
19 73.90 73.90 0.00 952.70 780.20 172.50 952.70 780.40
20 73.40 73.40 0.00 952.80 779.90 172.90 952.70 780.10
21 60.30 60.30 0.00 952.80 779.20 173.60 952.80 779.20
22 28.90 28.90 0.00 953.10 777.80 175.30 953.10 777.70
23 50.80 50.80 0.00 952.90 778.40 174.50 952.90 779.20
24 57.00 57.00 0.00 952.90 779.20 173.70 952.90 779.10
AVG 45.78 45.78 0.00 953.12 779.34 173.77 953.11 779.32
MAX 73.90 73.90 0.00 953.50 780.60 175.30 953.30 780.40
MIN 25.90 25.90 0.00 952.70 777.80 172.20 952.70 777.70
BUILDING STRONG®