Rivers in Alaska
Tanana River at Big Delta
Below flood stage
15.88ftStage
Observed Tue, Sep 22, 10:00 AM UTC
- Flood stage
- 23.00 ft
- Forecast crest
- 15.67 ftTue, Sep 22, 12:00 PM UTC
- Record crest
- 23.57 ft1949
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 27.00 ft |
| Moderate flood | 25.00 ft |
| Minor flood | 23.00 ft |
| Action | 22.00 ft |
- 27.00 ftMajor flood stage.
- 25.00 ftModerate flood stage.
- 23.30 ftOn August 13 1997...a stage of 23.3 feet resulted in the flooding of structures on Whitestone Farms.
- 23.00 ftMinor flood stage.
- 22.50 ftOn August 13 1997...a stage of 22.5 feet prompted residents of Whitestone Farms to begin preparations for flooding...including sandbagging houses on their property. House near Rika's Roadhouse was also sandbagged.
Crest history
41 crests on NOAA’s list since 1949.
| # | Date | Stage |
|---|---|---|
| 1 | July 29, 1949 | 23.57 ft |
| 2 | August 14, 1997 | 23.31 ft |
| 3 | July 31, 1952 | 23.24 ft |
| 4 | August 29, 2023 | 23.16 ft |
| 5 | August 3, 1954 | 22.86 ft |
| 6 | July 27, 1955 | 22.85 ft |
| 7 | July 16, 1988 | 22.80 ft |
| 8 | July 12, 1983 | 22.60 ft |
| 9 | July 18, 1956 | 22.42 ft |
| 10 | July 21, 1986 | 22.15 ft |
| 11 | July 16, 1957 | 21.99 ft |
| 12 | August 2, 1950 | 21.98 ft |
| 13 | July 24, 1993 | 21.96 ft |
| 14 | July 18, 2003 | 21.90 ft |
| 15 | August 10, 2024 | 21.87 ft |
| 16 | August 30, 2025 | 21.72 ft |
| 17 | June 26, 1989 | 21.71 ft |
| 18 | July 16, 1987 | 21.65 ft |
| 19 | July 4, 2012 | 21.56 ft |
| 20 | June 16, 1984 | 21.55 ft |
| 21 | July 13, 1951 | 21.55 ft |
| 22 | July 22, 1992 | 21.46 ft |
| 23 | July 3, 1985 | 21.40 ft |
| 24 | July 14, 1982 | 21.32 ft |
| 25 | August 11, 1994 | 21.30 ft |
Most recent crests
- August 30, 2025: 21.72 ft
- August 10, 2024: 21.87 ft
- August 29, 2023: 23.16 ft
- June 28, 2013: 20.88 ft
- July 4, 2012: 21.56 ft
- August 3, 2011: 20.95 ft
- July 5, 2010: 20.85 ft
- July 10, 2009: 20.77 ft
- July 29, 2008: 20.85 ft
- July 9, 2007: 20.65 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Alaska Pacific River Forecast Center. Forecasts are issued routinely during the warm season, and as needed at other times of the year. Stage may be affected by ice.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.