Memorial Lake is an earth dam located in Lebanon County, Pennsylvania, built in 1946. It carries a High hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 37 ft37 ft tall and 760 ft long, taller than 83% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Memorial Lake
The primary purpose of Memorial Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dcnr (state). It impounds the Indiantown Run.
The dam stands 37 feet tall and stretches 760 feet across, creates a reservoir covering 87 acres, has a maximum storage capacity of 2,575 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1946, the structure is well-established, with more than 75 years 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 05/21/2020.
At 37 feet, this dam is taller than 83% of dams nationwide.
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 | Lebanon |
| River/Stream | Indiantown Run |
| Coordinates | 40.41778, -76.59222 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 760 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 2,575 acre-ft |
| Max Storage | 2,575 acre-ft |
| Normal Storage | 1,680 acre-ft |
| Surface Area | 87 acres |
| Drainage Area | 7 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Dcnr |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 05/21/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00603 |
| Federal ID | PA00603 |
| More Info | State Dam Safety Program |