Parvin
Parvin is an earth dam located in Larimer County, Colorado, built in 1925. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Parvin
The primary purpose of Parvin is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Colorado Parks And Wildlife (state). It impounds the South Lone Pine near Fort Collins.
The dam stands 68 feet tall and stretches 427 feet across, creates a reservoir covering 60 acres, has a maximum storage capacity of 1,300 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1925, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/31/2021.
At 68 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | Colorado |
| County | Larimer |
| Nearest City | Fort Collins |
| River/Stream | South Lone Pine |
| Coordinates | 40.78765, -105.55366 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 68 ft |
| Dam Height | 45 ft |
| Dam Length | 427 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 1,300 acre-ft |
| Max Storage | 1,300 acre-ft |
| Normal Storage | 700 acre-ft |
| Surface Area | 60 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 1,330 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | COLORADO PARKS AND WILDLIFE |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/31/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO01170 |
| Federal ID | CO01170 |
| More Info | State Dam Safety Program |