Richmond Hill
Key Takeaway
Richmond Hill is classified as low hazard in South Dakota. It was completed in 1988 and is 38 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 79 ft (taller than 99.5% in SD) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 241 acre-ft |
| Normal Storage | 0 acre-ft |
| Max Discharge | 0 cfs |
| Year Completed | 1988 (38 years old) |
| NID ID | SD02624 |
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
LAC Minerals LLC
Private
Nearby Dams
Bh Rc&D Grade Structure Bh Ca-305.3-La
Lawrence, SD
Low Hazard 50 ftRod & Gun
Lawrence, SD
High Hazard 20 ftGrizzly Gulch Tailings Dam
Lawrence, SD
High Hazard 380 ftIron Cr Lake
Lawrence, SD
High Hazard 40 ftHanna
Lawrence, SD
Significant Hazard 12 ftGlen Baker Dam
Lawrence, SD
Low Hazard 25 ftStrawberry
Lawrence, SD
Significant Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Richmond Hill?
Richmond Hill 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 Richmond Hill?
Richmond Hill is owned by LAC Minerals LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Richmond Hill built?
Richmond Hill was completed in 1988, making it 38 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 Richmond Hill?
Richmond Hill serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Richmond Hill?
Richmond Hill has a dam height of 79 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.