Minidoka Dam
Dam in Minidoka County, Idaho · Snake River Columbia River · forms Lake Walcott,
Height
88 ft
27 m (NID height)
Length
670 ft
204 m
Completed
1906
Lake Walcott, today
4,237.60 ft
7 days ▲ 0.07 ft
Normal storage
210,200 acre-ft
Reservoir level measured Oct 21, 2026, 12:00 AM MDT. Full level page →
Facts
- Purposes
- Fish and Wildlife Pond; Recreation; Hydroelectric; Water Supply
- Dam type
- Earth
- Structural height
- 86 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 220,200 acre-ft
- Surface area
- 12,400 acres
- Hydraulic height
- 74 ft
- Drainage area
- 16,459 sq mi
- Spillway
- Controlled, 62 ft wide
- Army Corps district
- Sacramento District
- Also known as
- Lake Walcott
- NID ID
- ID00275
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID ID00275 at nid.sec.usace.army.mil. Project website.
Other dams at Lake Walcott,
- Minidoka South Dike