Lewis Lake
Lewis Lake is an earth dam located in Susquehanna County, Pennsylvania, built in 1835. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Lewis Lake
The primary purpose of Lewis Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lewis Lake Association, Inc (private). It impounds the Fiddle Lake Creek.
The dam stands 15 feet tall and stretches 186 feet across, creates a reservoir covering 49 acres, has a maximum storage capacity of 977 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1835, the structure is one of the older dams in the region, with over a century and a half of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 11/06/2020.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Pennsylvania dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Pennsylvania |
| County | Susquehanna |
| River/Stream | Fiddle Lake Creek |
| Coordinates | 41.71694, -75.49556 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 186 ft |
| Year Completed | 1835 (191 years old) |
Storage & Hydraulics
| NID Storage | 977 acre-ft |
| Max Storage | 977 acre-ft |
| Normal Storage | 737 acre-ft |
| Surface Area | 49 acres |
| Drainage Area | 6 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | LEWIS LAKE ASSOCIATION, INC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/06/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00061 |
| Federal ID | PA00061 |
| More Info | State Dam Safety Program |