Dorothy Rast Dam 1

TR-HALFWAY SWAMP CREEK· Calhoun, South Carolina· Built 1964· 19 ft tall

Key Takeaway

Dorothy Rast Dam 1 is classified as high hazard in South Carolina. It was completed in 1964 and is 62 years old. Its primary use is fire protection. 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 19 ft (taller than 41.8% in SC)
Max Storage111 acre-ft
Normal Storage80 acre-ft
Surface Area11 acres
Year Completed1964 (62 years old)
NID IDSC00592

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: February 13, 2023
State Regulated: Yes
Regulatory Agency: SC DHEC

Ownership

ALLAN C ZEIGLER;SOUTHERN FARMLANDS LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dorothy Rast Dam 1?

Dorothy Rast Dam 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 Dorothy Rast Dam 1?

Dorothy Rast Dam 1 is owned by ALLAN C ZEIGLER;SOUTHERN FARMLANDS LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dorothy Rast Dam 1 built?

Dorothy Rast Dam 1 was completed in 1964, making it 62 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 Dorothy Rast Dam 1?

Dorothy Rast Dam 1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Dorothy Rast Dam 1?

Dorothy Rast Dam 1 has a dam height of 19 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 Dorothy Rast Dam 1 last inspected?

Dorothy Rast Dam 1 was last inspected on February 13, 2023. 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.