Gorge Reservoir Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Gorge Reservoir water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Gorge Reservoir been doing?
Across the available 30-day series, Gorge Reservoir is rising overall. The measured range runs from 868.43 ft to 872.79 ft, with a net change of +1.08 ft.
Lake levels can respond to rainfall, watershed inflow, dam and hydropower operations, seasonal target elevations, evaporation and downstream release requirements. This page reports what the matched sensor measured; it does not infer why an operator changed a reservoir.
Recent daily levels
| Date | Low | Average | High |
|---|---|---|---|
| Oct 7 | 871.92 ft | 872.31 ft | 872.75 ft |
| Oct 6 | 870.30 ft | 871.68 ft | 872.79 ft |
| Oct 5 | 868.81 ft | 870.49 ft | 871.80 ft |
| Oct 4 | 869.51 ft | 870.84 ft | 871.80 ft |
| Oct 3 | 869.95 ft | 871.18 ft | 872.28 ft |
| Oct 2 | 869.21 ft | 870.09 ft | 871.09 ft |
| Oct 1 | 868.43 ft | 869.87 ft | 871.49 ft |
| Sep 30 | 868.88 ft | 869.89 ft | 871.15 ft |
| Sep 29 | 868.87 ft | 869.86 ft | 871.31 ft |
| Sep 28 | 871.57 ft | 872.45 ft | 872.72 ft |
| Sep 27 | 870.38 ft | 871.36 ft | 872.74 ft |
| Sep 26 | 869.81 ft | 870.88 ft | 871.39 ft |
| Sep 25 | 870.30 ft | 871.09 ft | 871.49 ft |
| Sep 24 | 869.96 ft | 871.09 ft | 871.99 ft |
| Sep 23 | 869.09 ft | 870.46 ft | 872.11 ft |
| Sep 22 | 870.02 ft | 870.60 ft | 871.93 ft |
| Sep 21 | 869.93 ft | 870.87 ft | 871.94 ft |
| Sep 20 | 870.45 ft | 870.79 ft | 871.59 ft |
| Sep 19 | 869.76 ft | 870.62 ft | 871.62 ft |
| Sep 18 | 870.29 ft | 870.65 ft | 871.01 ft |
| Sep 17 | 869.67 ft | 870.54 ft | 871.18 ft |
| Sep 16 | 870.30 ft | 870.87 ft | 871.34 ft |
| Sep 15 | 869.92 ft | 870.44 ft | 871.36 ft |
| Sep 14 | 869.46 ft | 870.07 ft | 871.06 ft |
| Sep 13 | 871.09 ft | 871.92 ft | 872.57 ft |
| Sep 12 | 870.35 ft | 870.84 ft | 871.84 ft |
| Sep 11 | 870.48 ft | 871.33 ft | 872.05 ft |
| Sep 10 | 871.12 ft | 871.65 ft | 872.49 ft |
| Sep 9 | 869.25 ft | 870.62 ft | 872.66 ft |
| Sep 8 | 870.34 ft | 871.33 ft | 872.27 ft |
Gorge Reservoir level-history FAQ
How has Gorge Reservoir water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is +1.08 ft and the overall direction is rising.
What was the highest Gorge Reservoir level in the last 30 days?
The highest reading in the available 30-day series is 872.79 ft.
What was the lowest Gorge Reservoir level in the last 30 days?
The lowest reading in the available 30-day series is 868.43 ft.
Are historical USGS lake readings final?
Not always. Recent readings may be marked provisional and can be revised by the source agency after quality review.