Rattlesnake Dam
Dam in Larimer County, Colorado · Rattlesnake Creek, Cottonwood Creek-Tr · forms Pinewood Reservoir
Height
130 ft
40 m (NID height)
Length
1,100 ft
335 m
Completed
1952
Pinewood Reservoir today
6,558.29 ft
7 days ▼ 14.73 ft
Normal storage
2,181 acre-ft
Reservoir level measured Oct 21, 2026, 12:00 AM MDT. Full level page →
Facts
- Purposes
- Irrigation
- Dam type
- Rockfill
- Structural height
- 130 ft
- Owner
- BUREAU OF RECLAMATION (Federal)
- Maximum storage
- 3,179 acre-ft
- Surface area
- 124 acres
- Hydraulic height
- 100 ft
- Drainage area
- 3 sq mi
- Spillway
- Uncontrolled, 102 ft wide
- Army Corps district
- Omaha District
- Also known as
- Pinewood Lake
- NID ID
- CO01663
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID CO01663 at nid.sec.usace.army.mil. Project website.