Overview
American Falls Reservoir is a reservoir in ID. Primary inflow is Snake River. It is managed by U.S. Bureau of Reclamation.
The basin is characterized by about 56,000 acres of surface area. Shoreline and bottom character vary from protected coves and flats to deeper water, supporting a mix of open-water and nearshore habitats.
American Falls Reservoir supports recreational boating and fishing. Public access is through area ramps, parks, and shoreline facilities where provided by the operator. Fishing and boating regulations are set by the relevant state wildlife agency.
Pool elevations are managed against conservation or full-pool elevation near 4354.5 feet NGVD29. Monitoring current levels matters for ramp usability, shoreline access, and understanding storage relative to the published operating range.
Current Conditions
American Falls Reservoir is currently 47.45 feet below full pool and has been falling over the past week.
- 7-day trendFallingLatest movement can differ from the seven-day trend.
- 7-day changeDown 0.84 ft
- 30-day changeDown 0.84 ft
- Drought conditionsExtreme Drought
About This Lake
Learn how this lake is managed, what affects its water level, and where Lake Insights gets its data.
American Falls Reservoir is a 56,000-acre reservoir on the Snake River managed by U.S. Bureau of Reclamation.
