Parvin

SOUTH LONE PINE· Larimer, Colorado· Built 1925· Earth· 45 ft tall
Significant Hazard Fish And Wildlife Pond Recreation State Government

Key Takeaway

Parvin is classified as significant hazard in Colorado. It was completed in 1925 and is 101 years old. Its primary use is fish and wildlife pond. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 45 ft (taller than 85.3% in CO)
Dam Length427 ft
Dam TypeEarth
Max Storage1.3K acre-ft
Normal Storage700 acre-ft
Surface Area60 acres
Drainage Area17 sq mi
Max Discharge1,330 cfs
Year Completed1925 (101 years old)
NID IDCO01170

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: August 31, 2021
State Regulated: Yes
Regulatory Agency: DWR

Ownership

COLORADO PARKS AND WILDLIFE

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Parvin?

Parvin is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Parvin?

Parvin is owned by COLORADO PARKS AND WILDLIFE (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Parvin built?

Parvin was completed in 1925, making it 101 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Parvin?

Parvin serves the following purposes: Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Parvin?

Parvin has a dam height of 45 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Parvin last inspected?

Parvin was last inspected on August 31, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.