Snake River at Blackfoot, ID

River level and flood forecast · Bingham County

Normal5.5 ftas of Mon 9:15 PM

The river is 5.0 ft below flood stage (10.5 ft).

Forecast to hold near 5.5 ft through Mon, Oct 19, 6 PM.

Flow: 2,340 cubic feet per second (USGS).

The last 7 days and the forecast

2468101214TueThuSatMonWedFriSunAction 9.5 ftFlood 10.5 ftModerate 11.5 ftMajor 13 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 1:08 PM. Forecasts change as rain falls and as upstream water arrives.

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Flood stages

Major flood stage13 ft
Moderate flood stage11.5 ft
Flood stage10.5 ft
Action stage9.5 ft
Record crest (June 17, 1997)13.55 ft

What floods at each level

From the National Weather Service, highest first.

  • 13.5 ftInundation of roads and parking lots will occur in the commercial area near the intersection of U.S. Route 26 and Interstate 15. Water is at least 1 foot above the loading docks at the Ridleys Plaza. Significant flooding of farmland and roads near the river is likely. Major flooding could occur in the Jensen's Grove area that could impact Walmart.
  • 13 ftMajor flooding will occur throughout Bingham County. Major damage will occur on farm ground and water could top over the top of the Highway 26 bridge at Interstate 15.
  • 12.6 ftMajor flooding will occur in the Rose area at the Rose Ponds along Interstate 15, and in the Riverton and Schrader Island area. At 12.0 feet, the water will come over the top of the levee at Rose Ponds.
  • 11.5 ftLowland flooding will occur. Flooding is possible along US Highway 26 beneath the Interstate 15 underpass.
  • 11 ftMinor flooding will occur in the Riverton area and in the Watson slough area.
  • 10.5 ftMinor lowland flooding will occur along sections of the river from Rose to Blackfoot and downstream from Blackfoot. Water may seep into Jensens Grove.
  • 9.5 ftMinor flooding will occur near Rose. Minor lowland flooding is possible along the river downstream from Blackfoot.

Highest crests on record

  1. 13.55 ft — June 17, 1997
  2. 12.04 ft — May 28, 2011
  3. 11.26 ft — June 16, 2017
  4. 10.8 ft — June 4, 2018
  5. 10.74 ft — June 6, 1999

Recent crests: 6.83 ft (September 13, 2022) · 7.52 ft (August 5, 2021) · 8.78 ft (July 1, 2020) · 9.9 ft (April 28, 2019) · 10.8 ft (June 4, 2018)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (SNAI1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.