Ledgemere, also known as Lake Arrowhead Dam, is a private structure located in Limerick, Maine, along the picturesque Little Ossipee River.
Wind
Humidity
Built in 1905, this timber crib dam stands at 25 feet high and spans 398 feet in length, with a storage capacity of 6,300 acre-feet and a surface area of 1,100 acres. The primary purpose of Ledgemere is hydroelectric, with two flap gates serving as the outlet.
Managed by the Federal Energy Regulatory Commission, Ledgemere is classified as having a significant hazard potential and a very high risk assessment rating. Despite its age, the dam has not undergone a recent condition assessment, and the last inspection was conducted in July 2019. While there are no state regulations governing Ledgemere, the dam's safety and emergency preparedness protocols are crucial in mitigating potential risks.
For water resource and climate enthusiasts, Ledgemere offers a glimpse into Maine's hydroelectric infrastructure and the unique challenges of managing a historic timber crib dam. With its scenic location and vital role in generating hydroelectric power, Ledgemere stands as a testament to the intersection of human ingenuity and environmental stewardship in harnessing water resources for sustainable energy production.
Year Completed |
1905 |
Dam Length |
398 |
Dam Height |
25 |
River Or Stream |
Little Ossipee River |
Primary Dam Type |
Timber Crib |
Surface Area |
1100 |
Drainage Area |
157 |
Nid Storage |
6300 |
Outlet Gates |
Flap - 2 |
Hazard Potential |
Significant |
Foundations |
Rock |
Nid Height |
25 |
Saco River At Cornish
|
1020cfs |
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|
44cfs |
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|
-999999cfs |
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|
315cfs |
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|
24cfs |
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|
152cfs |