Rivers in Idaho
Big Lost River near Arco
Below flood stage
2.00ftStage
Observed Tue, Sep 22, 3:00 AM MDT
- Flood stage
- 6.50 ft
- Record crest
- 7.68 ft1967
Flood stages and impacts
| Category | Stage |
|---|---|
| Minor flood | 6.50 ft |
| Action | 5.50 ft |
- 6.50 ftWidespread lowland flooding probable from Darlington/Moore areas downriver to the INL Complex boundary. Bank erosion possible. Bridges along US HWY 93 may have water near their base.
- 5.50 ftBig Lost River within 1 foot of bankfull in many locations between Darlington/Moore areas to the INL Complex boundary. Some minor lowland flooding and ponding of water may occur. Isolated erosion possible along James Creek south of the Moore bridge.
Crest history
23 crests on NOAA’s list since 1958.
| # | Date | Stage |
|---|---|---|
| 1 | July 5, 1967 | 7.68 ft |
| 2 | July 12, 1983 | 7.32 ft |
| 3 | June 9, 1986 | 7.26 ft |
| 4 | June 14, 1997 | 7.10 ft |
| 5 | July 2, 1982 | 6.86 ft |
| 6 | June 23, 1974 | 6.61 ft |
| 7 | June 1, 1958 | 6.59 ft |
| 8 | June 30, 1971 | 6.54 ft |
| 9 | June 22, 1984 | 6.53 ft |
| 10 | April 7, 1969 | 6.47 ft |
| 11 | June 23, 2017 | 5.87 ft |
| 12 | June 3, 2018 | 5.70 ft |
| 13 | June 12, 2006 | 5.62 ft |
| 14 | June 21, 2019 | 5.00 ft |
| 15 | June 23, 2009 | 4.73 ft |
| 16 | April 29, 2012 | 4.68 ft |
| 17 | July 8, 2011 | 4.46 ft |
| 18 | June 1, 2005 | 4.43 ft |
| 19 | June 9, 2010 | 4.14 ft |
| 20 | July 8, 2013 | 2.57 ft |
| 21 | June 17, 2014 | 2.41 ft |
| 22 | June 1, 2015 | 1.99 ft |
| 23 | June 1, 2016 | 1.99 ft |
Most recent crests
- June 21, 2019: 5.00 ft
- June 3, 2018: 5.70 ft
- June 23, 2017: 5.87 ft
- June 1, 2016: 1.99 ft
- June 1, 2015: 1.99 ft
- June 17, 2014: 2.41 ft
- July 8, 2013: 2.57 ft
- April 29, 2012: 4.68 ft
- July 8, 2011: 4.46 ft
- June 9, 2010: 4.14 ft
Nearby
Upstream, downstream and the gauges around this one.
- UpstreamBig Lost River at Mackay Reservoir
- DownstreamBig Lost River at Lincoln Bridge INL Complex
- Big Lost River at Arco At Sunset Road
- Big Lost River at INL Diversion at Head near Arco
- Big Lost River at INL Diversion
- Big Lost River at Moore Div Nr Moore
- Antelope Creek (ID) at Darlington
- Big Lost River at Leslie
- Little Lost River at Howe
What this means
Forecasts by the Northwest River Forecast Center. Forecasts are not available. Only observed stages are available for this point. Stage may be affected by ice during winter months.
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.