Big Sandy Reservoir Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Big Sandy Reservoir water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Big Sandy Reservoir been doing?
Across the available 30-day series, Big Sandy Reservoir is falling overall. The measured range runs from 6,732.45 ft to 6,735.6 ft, with a net change of -0.66 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 | 6734.91 ft | 6734.93 ft | 6734.94 ft |
| Oct 6 | 6734.84 ft | 6734.88 ft | 6734.91 ft |
| Oct 5 | 6734.77 ft | 6734.81 ft | 6734.85 ft |
| Oct 4 | 6734.69 ft | 6734.73 ft | 6734.77 ft |
| Oct 3 | 6734.61 ft | 6734.65 ft | 6734.69 ft |
| Oct 2 | 6734.52 ft | 6734.57 ft | 6734.61 ft |
| Oct 1 | 6734.42 ft | 6734.47 ft | 6734.52 ft |
| Sep 30 | 6734.33 ft | 6734.38 ft | 6734.42 ft |
| Sep 29 | 6734.23 ft | 6734.28 ft | 6734.33 ft |
| Sep 28 | 6734.10 ft | 6734.16 ft | 6734.23 ft |
| Sep 27 | 6734.02 ft | 6734.06 ft | 6734.10 ft |
| Sep 26 | 6733.95 ft | 6733.99 ft | 6734.02 ft |
| Sep 25 | 6733.87 ft | 6733.92 ft | 6733.95 ft |
| Sep 24 | 6733.67 ft | 6733.75 ft | 6733.87 ft |
| Sep 23 | 6733.59 ft | 6733.63 ft | 6733.67 ft |
| Sep 22 | 6733.50 ft | 6733.54 ft | 6733.59 ft |
| Sep 21 | 6733.40 ft | 6733.45 ft | 6733.50 ft |
| Sep 20 | 6733.27 ft | 6733.34 ft | 6733.40 ft |
| Sep 19 | 6733.07 ft | 6733.18 ft | 6733.27 ft |
| Sep 18 | 6732.69 ft | 6732.86 ft | 6733.07 ft |
| Sep 17 | 6732.60 ft | 6732.65 ft | 6732.70 ft |
| Sep 16 | 6732.50 ft | 6732.55 ft | 6732.60 ft |
| Sep 15 | 6732.45 ft | 6732.50 ft | 6732.61 ft |
| Sep 14 | 6732.61 ft | 6732.85 ft | 6733.09 ft |
| Sep 13 | 6733.06 ft | 6733.28 ft | 6733.48 ft |
| Sep 12 | 6733.49 ft | 6733.70 ft | 6733.90 ft |
| Sep 11 | 6733.91 ft | 6734.11 ft | 6734.31 ft |
| Sep 10 | 6734.32 ft | 6734.51 ft | 6734.69 ft |
| Sep 9 | 6734.69 ft | 6734.87 ft | 6735.06 ft |
| Sep 8 | 6735.06 ft | 6735.24 ft | 6735.42 ft |
Big Sandy Reservoir level-history FAQ
How has Big Sandy Reservoir water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is -0.66 ft and the overall direction is falling.
What was the highest Big Sandy Reservoir level in the last 30 days?
The highest reading in the available 30-day series is 6,735.6 ft.
What was the lowest Big Sandy Reservoir level in the last 30 days?
The lowest reading in the available 30-day series is 6,732.45 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.