Lake Redman
Lake Redman is an earth dam located in York County, Pennsylvania, built in 1967. It carries a High hazard potential classification and has a poor condition assessment.
About Lake Redman
The primary purpose of Lake Redman is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by York Water Company (private). It impounds the East Branch Codorus Creek.
The dam stands 52 feet tall and stretches 1,000 feet across, creates a reservoir covering 290 acres, has a maximum storage capacity of 9,475 acre-feet, and collects water from a drainage area of 40 square miles. Completed in 1967, the structure is well into its service life at over 50 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 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 03/08/2021.
At 52 feet, this dam is taller than 93% 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 | York |
| River/Stream | East Branch Codorus Creek |
| Coordinates | 39.89722, -76.71389 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 52 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 9,475 acre-ft |
| Max Storage | 9,475 acre-ft |
| Normal Storage | 5,524 acre-ft |
| Surface Area | 290 acres |
| Drainage Area | 40 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | YORK WATER COMPANY |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 03/08/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00339 |
| Federal ID | PA00339 |
| More Info | State Dam Safety Program |