Gambo
Gambo is a concrete dam located in Cumberland County, Maine, built in 1911. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Gambo
The primary purpose of Gambo is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Dichotomy Power Maine, Llc And Presumpcot Hydro, Llc (private). It impounds the Presumpscot River near Windham.
The dam stands 24 feet tall and stretches 350 feet across, creates a reservoir covering 151 acres, has a maximum storage capacity of 1,261 acre-feet, and collects water from a drainage area of 493 square miles. Completed in 1911, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/18/2022.
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Location
| State | Maine |
| County | Cumberland |
| Nearest City | Windham |
| River/Stream | Presumpscot River |
| Coordinates | 43.74716, -70.43834 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 350 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 1,261 acre-ft |
| Max Storage | 1,261 acre-ft |
| Normal Storage | 1,000 acre-ft |
| Surface Area | 151 acres |
| Drainage Area | 493 sq mi |
| Max Discharge | 10,135 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Dichotomy Power Maine, LLC and Presumpcot Hydro, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/18/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00067 |
| Federal ID | ME00067 |
| More Info | State Dam Safety Program |