Muddy Run East Dike
Muddy Run East Dike is a rockfill dam located in Lancaster County, Pennsylvania, built in 1967. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Muddy Run East Dike
The primary purpose of Muddy Run East Dike 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 Constellation Energy Generation, Llc (nyro) (public utility). It impounds the Susquehanna River near Cold Cabin Boat Launch.
The dam stands 12 feet tall and stretches 800 feet across, creates a reservoir covering 1,000 acres, has a maximum storage capacity of 60,500 acre-feet, and collects water from a drainage area of 9 square miles. Completed in 1967, the structure is well into its service life at over 50 years 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. An emergency action plan is in place for this dam. The most recent inspection on record was 08/20/2022.
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Location
| State | Pennsylvania |
| County | Lancaster |
| Nearest City | Cold Cabin Boat Launch |
| River/Stream | Susquehanna River |
| Coordinates | 39.81487, -76.29275 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 800 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 60,500 acre-ft |
| Max Storage | 60,500 acre-ft |
| Normal Storage | 60,500 acre-ft |
| Surface Area | 1,000 acres |
| Drainage Area | 9 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Constellation Energy Generation, LLC (NYRO) |
| Owner Type | Public Utility |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/20/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00266 |
| Federal ID | PA00266S002 |
| More Info | State Dam Safety Program |