Grasmere North Dam
Key Takeaway
Grasmere North Dam is classified as significant hazard in Idaho. It was completed in 1936 and is 90 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 22 ft (taller than 34.7% in ID) |
| Dam Length | 1,520 ft |
| Normal Storage | 658 acre-ft |
| Surface Area | 86 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 55 cfs |
| Year Completed | 1936 (90 years old) |
| NID ID | ID00190 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Grasmere North Dam?
Grasmere North Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Grasmere North Dam?
Grasmere North Dam is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Grasmere North Dam built?
Grasmere North Dam was completed in 1936, making it 90 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 Grasmere North Dam?
Grasmere North Dam 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 Grasmere North Dam?
Grasmere North Dam 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 Grasmere North Dam last inspected?
Grasmere North Dam was last inspected on August 27, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.