The Lake Kanasatka Dam, also known as Long Pond Dam, is a state-owned structure located in Moultonborough, Carroll County, New Hampshire.
Wind
Humidity
Completed in 1933, this earth dam stands at a height of 17 feet and spans a length of 240 feet, serving primarily for recreational purposes. With a storage capacity of 5640 acre-feet and a drainage area of 7.3 square miles, the dam regulates the flow of the Trout River into Lake Winnipesaukee and covers a surface area of 392 acres.
Despite its significant hazard potential and poor condition assessment, the Lake Kanasatka Dam is regularly inspected and maintained by the New Hampshire Department of Environmental Services Dam Bureau. The dam's spillway, with a width of 7 feet, is of the uncontrolled type. While it currently meets moderate risk levels, with a risk assessment rating of 3, there is a need for ongoing risk management measures to ensure the safety and integrity of this vital water resource infrastructure for both recreational and environmental enthusiasts in the region.
Year Completed |
1933 |
Dam Length |
240 |
Dam Height |
17 |
River Or Stream |
TR LAKE WINNIPESAUKEE |
Primary Dam Type |
Earth |
Surface Area |
392 |
Drainage Area |
7.3 |
Nid Storage |
5640 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
Bearcamp River At South Tamworth
|
152cfs |
Pemigewasset River At Plymouth
|
407cfs |
Smith River Near Bristol
|
35cfs |
Winnipesaukee River At Tilton
|
85cfs |
Baker River Near Rumney
|
69cfs |
Pemigewasset River At Woodstock
|
173cfs |