Upper Mount Glen Lake Dam
Key Takeaway
Upper Mount Glen Lake Dam is classified as high hazard in New Jersey. It was completed in 1927 and is 99 years old. Its primary use is recreation. 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 | 8 ft (taller than 5.1% in NJ) |
| Dam Length | 247 ft |
| Dam Type | Earth |
| Max Storage | 50 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 170 cfs |
| Year Completed | 1927 (99 years old) |
| NID ID | NJ00202 |
Safety Information
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?
Ownership
Mount Glen Lakes Association
Private
Nearby Dams
Lindy'S Lake Dam
Passaic, NJ
High Hazard 24 ftLower Mount Glen Lake Dam
Passaic, NJ
High Hazard 15 ftNew Jersey No Name # 40 Dam
Passaic, NJ
High Hazard 15 ftKitchell Lake Dam
Passaic, NJ
Significant Hazard 14 ftNosenzo Pond Dam
Passaic, NJ
Significant Hazard 9 ftGordon Lakes Dam
Passaic, NJ
High Hazard 12 ftBubbling Springs Lower Pond Dam
Passaic, NJ
Significant Hazard 8 ftWeavers Pond Dam
Passaic, NJ
Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Upper Mount Glen Lake Dam?
Upper Mount Glen Lake Dam 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 Upper Mount Glen Lake Dam?
Upper Mount Glen Lake Dam is owned by Mount Glen Lakes Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Mount Glen Lake Dam built?
Upper Mount Glen Lake Dam was completed in 1927, making it 99 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 Upper Mount Glen Lake Dam?
Upper Mount Glen Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Upper Mount Glen Lake Dam?
Upper Mount Glen Lake Dam has a dam height of 8 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 Upper Mount Glen Lake Dam last inspected?
Upper Mount Glen Lake Dam was last inspected on June 17, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.