Ragged Lake

Ragged Stream· Piscataquis, Maine· Built 1937· Earth· 30 ft tall
Low Hazard Hydroelectric Navigation Fish And Wildlife Pond Recreation Water Supply Flood Risk Reduction Not Listed

Key Takeaway

Ragged Lake is classified as low hazard in Maine. It was completed in 1937 and is 89 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 30 ft (taller than 88.4% in ME)
Dam Length1,193 ft
Dam TypeEarth
Max Storage30.5K acre-ft
Normal Storage30.5K acre-ft
Surface Area2,786 acres
Drainage Area40 sq mi
Max Discharge6,680 cfs
Year Completed1937 (89 years old)
NID IDME00209

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: July 11, 2018
State Regulated: No

Ownership

Not Listed

Nearby Dams

Lazy Tom

Piscataquis, ME

Low Hazard 8 ft

First Roach Pond

Piscataquis, ME

Low Hazard 18 ft

Ripogenus

Piscataquis, ME

High Hazard 83 ft

Frequently Asked Questions

What is the hazard classification of Ragged Lake?

Ragged Lake 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 Ragged Lake?

Ragged Lake is owned by information not available (Not Listed). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Ragged Lake built?

Ragged Lake was completed in 1937, making it 89 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 Ragged Lake?

Ragged Lake serves the following purposes: Hydroelectric, Navigation, Fish And Wildlife Pond, Recreation, Water Supply, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Ragged Lake?

Ragged Lake has a dam height of 30 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 Ragged Lake last inspected?

Ragged Lake was last inspected on July 11, 2018. 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.