Trail City Dam
Key Takeaway
Trail City Dam is classified as low hazard in South Dakota. It was completed in 1935 and is 91 years old. Its primary use is water supply.
Physical Details
| Dam Height | 24 ft (taller than 53.3% in SD) |
| Dam Length | 650 ft |
| Dam Type | Earth |
| Max Storage | 500 acre-ft |
| Normal Storage | 234 acre-ft |
| Surface Area | 78 acres |
| Max Discharge | 2,900 cfs |
| Year Completed | 1935 (91 years old) |
| NID ID | SD02334 |
Safety Information
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?
Ownership
STANDING ROCK TRIBE
Federal Government
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Trail City Dam?
Trail City Dam 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 Trail City Dam?
Trail City Dam is owned by STANDING ROCK TRIBE (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Trail City Dam built?
Trail City Dam was completed in 1935, making it 91 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 Trail City Dam?
Trail City Dam serves the following purposes: Water Supply, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Trail City Dam?
Trail City Dam has a dam height of 24 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.