Olympus Dam
Dam in Larimer County, Colorado · Big Thompson River · forms Lake Estes
Height
70 ft
21 m (NID height)
Length
1,951 ft
595 m
Completed
1949
Lake Estes today
7,470.14 ft
7 days ▼ 1.73 ft
Normal storage
3,068 acre-ft
Reservoir level measured Oct 21, 2026, 12:00 AM MDT. Full level page →
Facts
- Purposes
- Hydroelectric; Irrigation
- Dam type
- Earth
- Structural height
- 70 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 3,068 acre-ft
- Surface area
- 185 acres
- Hydraulic height
- 45 ft
- Drainage area
- 155 sq mi
- Spillway
- Controlled, 100 ft wide
- Army Corps district
- Omaha District
- Also known as
- Lake Estes
- NID ID
- CO01662
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID CO01662 at nid.sec.usace.army.mil. Project website.