Safe Harbor Dam
The Safe Harbor Dam (also Safe Harbor Hydroelectric Station) is a concrete gravity dam, with an associated hydroelectric power station, on the lower Susquehanna River. It is the most northerly and last of three Great Depression-era public electrification projects' hydroelectric dams, and was constructed between April 1, 1930, and December 7, 1931. It created a long and relatively shallow lake, known as Lake Clarke, along the upper stretch of the Conejohela Valley. The creation of the lake shrank the upper Conejohela Flats in size.
| Safe Harbor Dam | |
|---|---|
The east end of the turbine hall for the Safe Harbor Dam housing the 25 Hz turbines. | |
| Official name | Safe Harbor Hydroelectric Station |
| Location | Manor Township, Lancaster County / Chanceford Township, York County, Pennsylvania, USA |
| Coordinates | 39°55′14″N 76°23′33″W |
| Construction began | April 1, 1930 |
| Opening date | December 7, 1931 |
| Operator(s) | Brookfield Renewable Partners |
| Dam and spillways | |
| Type of dam | Gravity |
| Impounds | Susquehanna River |
| Height | 75 ft (23 m) |
| Length | 4,869 ft (1,484 m) |
| Spillway type | Service, controlled |
| Spillway capacity | 1,120,000 cu ft/s (31,715 m3/s) |
| Reservoir | |
| Creates | Lake Clarke |
| Power Station | |
| Turbines | 7 × 33.0 MW 5 × 37.5 MW 2 × 2 MW |
| Installed capacity | 422.5 MW |
Two of the turbine units are dedicated to generating for Amtrak's 25 Hz traction power system, and the facility also has a frequency converter available for conversion of power between 25 Hz and the 60 Hz used by the electric grid.