Mcgrath Dam
Key Takeaway
Mcgrath Dam is classified as low hazard in Connecticut. It was completed in 1900 and is 126 years old. Its primary use is recreation.
Physical Details
| Dam Height | 10 ft (taller than 29.6% in CT) |
| Dam Length | 180 ft |
| Dam Type | Masonry |
| Max Storage | 60 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 38 sq mi |
| Max Discharge | 3,700 cfs |
| Year Completed | 1900 (126 years old) |
| NID ID | CT00553 |
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
Connecticut DEEP
State Government
Nearby Dams
Red Cedar Lake Dam
New London, CT
Significant Hazard 9 ftDeep River Reservoir Dam
New London, CT
High Hazard 62 ftSavin Lake Dam
New London, CT
Significant Hazard 18 ftFitchville Pond Dam
New London, CT
High Hazard 20 ftGardner Lake Dam
New London, CT
Significant Hazard 10 ftTadma Pond Dam
New London, CT
Significant Hazard 22 ftGager'S Pond Dam
New London, CT
Significant Hazard 22 ftMacdonald Swamp Pond
New London, CT
Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Mcgrath Dam?
Mcgrath 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 Mcgrath Dam?
Mcgrath Dam is owned by Connecticut DEEP (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mcgrath Dam built?
Mcgrath Dam was completed in 1900, making it 126 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 Mcgrath Dam?
Mcgrath 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 Mcgrath Dam?
Mcgrath Dam has a dam height of 10 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.