Road Dam
Key Takeaway
Road Dam is classified as low hazard in South Dakota. It was completed in 1953 and is 73 years old. Its primary use is water supply.
Physical Details
| Dam Height | 19 ft (taller than 29.5% in SD) |
| Dam Length | 525 ft |
| Dam Type | Earth |
| Max Storage | 138 acre-ft |
| Normal Storage | 109 acre-ft |
| Max Discharge | 630 cfs |
| Year Completed | 1953 (73 years old) |
| NID ID | SD01210 |
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
S&PL
State Government
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Low Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Road Dam?
Road 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 Road Dam?
Road Dam is owned by S&PL (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Road Dam built?
Road Dam was completed in 1953, making it 73 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 Road Dam?
Road Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Road Dam?
Road Dam 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 Road Dam last inspected?
Road Dam was last inspected on December 19, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.