Northbridge Subdivision Lake Dam
Key Takeaway
Northbridge Subdivision Lake Dam is classified as low hazard in Illinois. It was completed in 1999 and is 27 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 11 ft (taller than 8.1% in IL) |
| Dam Length | 950 ft |
| Dam Type | Earth |
| Max Storage | 120 acre-ft |
| Normal Storage | 73 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 720 cfs |
| Year Completed | 1999 (27 years old) |
| NID ID | IL50462 |
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
TWIN CITY DEVELOPERS, LLC
Private
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Northbridge Subdivision Lake Dam?
Northbridge Subdivision Lake 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 Northbridge Subdivision Lake Dam?
Northbridge Subdivision Lake Dam is owned by TWIN CITY DEVELOPERS, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Northbridge Subdivision Lake Dam built?
Northbridge Subdivision Lake Dam was completed in 1999, making it 27 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 Northbridge Subdivision Lake Dam?
Northbridge Subdivision Lake Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Northbridge Subdivision Lake Dam?
Northbridge Subdivision Lake Dam has a dam height of 11 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 Northbridge Subdivision Lake Dam last inspected?
Northbridge Subdivision Lake Dam was last inspected on November 4, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.