Ridley Park Lake
Ridley Park Lake is an earth dam located in Delaware County, Pennsylvania, built in 1998. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Ridley Park Lake
The primary purpose of Ridley Park Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Borough Of Ridley Park (local government). It impounds the Little Crum Creek.
The dam stands 15 feet tall and stretches 230 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 43 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1998, the structure is 28 years old.
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 12/10/2020.
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 | Delaware |
| River/Stream | Little Crum Creek |
| Coordinates | 39.87556, -75.32972 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 230 ft |
| Year Completed | 1998 (28 years old) |
Storage & Hydraulics
| NID Storage | 43 acre-ft |
| Max Storage | 43 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | BOROUGH OF RIDLEY PARK |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/10/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA01464 |
| Federal ID | PA01464 |
| More Info | State Dam Safety Program |