Ash Basin No 1

WTRSHD SUSQUEHANNA RIVER· Snyder, Pennsylvania· Built 1949· Earth· 22 ft tall
High Hazard Other Private

Key Takeaway

Ash Basin No 1 is classified as high hazard in Pennsylvania. It was completed in 1949 and is 77 years old. Its primary use is other. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 22 ft (taller than 48.9% in PA)
Dam Length6,405 ft
Dam TypeEarth
Max Storage95 acre-ft
Normal Storage16 acre-ft
Surface Area5 acres
Drainage Area0 sq mi
Year Completed1949 (77 years old)
NID IDPA01944

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: October 14, 2020
State Regulated: Yes
Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

SUNBURY GENERATION LP

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Ash Basin No 1?

Ash Basin No 1 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Ash Basin No 1?

Ash Basin No 1 is owned by SUNBURY GENERATION LP (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Ash Basin No 1 built?

Ash Basin No 1 was completed in 1949, making it 77 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 Ash Basin No 1?

Ash Basin No 1 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Ash Basin No 1?

Ash Basin No 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 Ash Basin No 1 last inspected?

Ash Basin No 1 was last inspected on October 14, 2020. 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.