Hoover Dam
Dam in Clark County, Arizona · Colorado River · forms Lake Mead
Height
730 ft
223 m (NID height)
Length
1,244 ft
379 m
Completed
1935
Lake Mead today
1,037.19 ft
7 days ▼ 0.35 ft
Normal storage
28,255,000 acre-ft
Reservoir level measured Oct 21, 2026, 12:00 AM MST. Full level page →
Facts
- Purposes
- Hydroelectric; Irrigation; Water Supply
- Dam type
- Concrete
- Structural height
- 726 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 30,237,000 acre-ft
- Surface area
- 162,700 acres
- Hydraulic height
- 592 ft
- Drainage area
- 167,800 sq mi
- Spillway
- Controlled, 64 ft wide
- Army Corps district
- Los Angeles District
- Also known as
- Lake Mead
- NID ID
- NV10122
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 22, 2025. Search NID ID NV10122 at nid.sec.usace.army.mil. Project website.