Granby Dam
Dam in Grand County, Colorado · Colorado River · forms Lake Granby
Height
298 ft
91 m (NID height)
Length
861 ft
262 m
Completed
1950
Lake Granby today
8,234.98 ft
7 days ▼ 0.44 ft
Normal storage
539,760 acre-ft
Reservoir level measured Oct 21, 2026, 12:00 AM MDT. Full level page →
Facts
- Purposes
- Hydroelectric; Irrigation
- Dam type
- Earth
- Structural height
- 298 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 539,760 acre-ft
- Surface area
- 7,260 acres
- Hydraulic height
- 233 ft
- Drainage area
- 312 sq mi
- Spillway
- Controlled, 42 ft wide
- Army Corps district
- Omaha District
- Also known as
- Lake Granby
- NID ID
- CO01656
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID CO01656 at nid.sec.usace.army.mil. Project website.
Other dams at Lake Granby
- Granby Dike 1
- Granby Dike 2
- Granby Dike 3
- Granby Dike 4