Hoover Dam
Dam in Franklin County, Ohio · Big Walnut Creek · forms Hoover Reservoir
Height
86 ft
26 m (NID height)
Length
2,583 ft
787 m
Completed
1956
Hoover Reservoir today
891.08 ft
7 days ▼ 0.69 ft
Normal storage
72,510 acre-ft
Much above normal for the date
Reservoir level measured Oct 23, 2026, 12:00 PM EDT. Full level page →
Facts
- Purposes
- Water Supply; Recreation
- Dam type
- Earth
- Owner
- City of Columbus (Local Government)
- Maximum storage
- 145,079 acre-ft
- Surface area
- 3,073 acres
- Drainage area
- 190 sq mi
- Army Corps district
- Louisville District
- NID ID
- OH00737
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID OH00737 at nid.sec.usace.army.mil. Project website.