US Army Corps of Engineers

The Dalles Dam

September 2025

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 13169 549 48 94.60 93.50 87.60 0.10 159.28 159.20 76.69 82.51
2 14126 589 48 100.50 100.10 94.20 0.00 159.36 159.39 77.01 82.38
3 12519 522 48 87.30 89.40 83.60 0.00 158.96 158.96 76.77 82.19
4 12335 514 48 90.30 87.70 81.80 0.00 159.44 159.32 76.66 82.66
5 12233 510 48 85.50 86.80 81.00 0.00 159.18 159.41 76.61 82.80
6 10747 448 48 75.30 77.40 71.60 0.00 158.81 159.06 76.72 82.34
7 9568 399 48 70.80 69.70 63.90 0.00 159.01 158.87 76.61 82.26
8 9418 392 48 70.50 68.00 62.20 0.00 159.52 159.32 76.22 83.10
9 9219 384 48 66.40 66.40 60.60 0.00 159.51 159.55 76.08 83.47
10 9154 381 48 65.80 66.10 60.30 0.00 159.44 159.45 76.26 83.19
11 10438 435 48 74.80 74.80 69.00 0.00 159.45 159.42 76.48 82.94
12 10704 446 48 75.90 76.80 70.90 0.00 159.24 159.41 76.67 82.74
13 10471 436 48 75.80 74.90 69.10 0.00 159.39 159.43 76.25 83.18
14 10103 421 48 72.20 72.60 66.80 0.00 159.35 159.20 76.27 82.93
15 9485 395 48 68.40 68.10 62.30 0.00 159.41 159.56 76.06 83.50
16 10271 428 48 72.70 73.30 67.50 0.00 159.28 159.44 76.00 83.44
17 15129 630 48 104.30 106.10 100.30 0.00 158.94 159.40 76.79 82.61
18 14305 596 48 99.80 101.50 95.70 0.00 158.61 158.97 77.06 81.91
19 14081 587 48 103.00 99.70 93.90 0.00 159.19 159.03 76.87 82.16
20 13295 554 48 93.30 94.60 88.70 0.00 159.04 159.04 76.82 82.22
21 10745 448 48 78.90 77.40 71.60 0.00 159.23 159.05 76.71 82.34
22 10252 427 48 75.50 73.40 67.60 0.00 159.64 159.42 76.20 83.22
23 10742 448 48 74.90 76.70 70.90 0.00 159.35 159.35 76.24 83.11
24 9776 407 48 68.40 70.80 65.00 0.00 158.88 159.05 76.27 82.78
25 10214 426 48 74.30 73.60 67.80 0.00 159.00 159.12 76.56 82.56
26 9164 382 48 68.20 66.50 60.70 0.00 159.31 159.14 76.39 82.75
27 9642 402 48 68.30 69.30 63.50 0.00 159.13 159.31 76.12 83.19
28 9128 380 48 65.60 66.00 60.10 0.00 159.01 159.19 75.95 83.24
29 9516 396 48 69.30 68.50 62.70 0.00 159.21 159.15 75.91 83.24
30 9102 379 48 66.40 65.70 59.80 0.00 159.34 159.35 75.87 83.48
TOT329051  1440        
AVG 10968 457 48 78.57 78.51 72.69 0.00 159.22 159.25 76.44 82.81
MAX 15129   104.30 106.10 100.30 0.10 159.64 159.56 77.06 83.50
MIN 9102   65.60 65.70 59.80 0.00 158.61 158.87 75.87 81.91
BUILDING STRONG®