Thomas Creek (rc & D-105)
Thomas Creek (rc & D-105) is an earth dam located in Susquehanna County, Pennsylvania, built in 1978. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Thomas Creek (rc & D-105)
The primary purpose of Thomas Creek (rc & D-105) is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Susquehanna County Commissioners (local government). It impounds the Thomas Creek.
The dam stands 24 feet tall and stretches 200 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 342 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 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 02/06/2020.
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 | Thomas Creek |
| Coordinates | 41.70167, -75.92444 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 200 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 342 acre-ft |
| Max Storage | 342 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | SUSQUEHANNA COUNTY COMMISSIONERS |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/06/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00979 |
| Federal ID | PA00979 |
| More Info | State Dam Safety Program |