Lost Lake #1

LOST LAKE CREEK· Hinsdale, Colorado· Built 1907· Earth· 22 ft tall

Key Takeaway

Lost Lake #1 is classified as low hazard in Colorado. It was completed in 1907 and is 119 years old. Its primary use is irrigation.

Physical Details

Dam Height 22 ft (taller than 43.8% in CO)
Dam Length182 ft
Dam TypeEarth
Max Storage1.2K acre-ft
Normal Storage917 acre-ft
Surface Area65 acres
Drainage Area1 sq mi
Max Discharge773 cfs
Year Completed1907 (119 years old)
NID IDCO00802

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: August 23, 2016
State Regulated: Yes
Regulatory Agency: DWR

Ownership

PETE LEAVELL (DAMON GIBBONS)

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lost Lake #1?

Lost Lake #1 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Lost Lake #1?

Lost Lake #1 is owned by PETE LEAVELL (DAMON GIBBONS) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lost Lake #1 built?

Lost Lake #1 was completed in 1907, making it 119 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 Lost Lake #1?

Lost Lake #1 serves the following purposes: Irrigation, 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 Lost Lake #1?

Lost Lake #1 has a dam height of 22 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 Lost Lake #1 last inspected?

Lost Lake #1 was last inspected on August 23, 2016. 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.