Warren H Ohl
Warren H Ohl is an earth dam located in Clinton County, Pennsylvania, built in 1965. It carries a High hazard potential classification and has a poor condition assessment.
About Warren H Ohl
The primary purpose of Warren H Ohl 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 City Of Lock Haven (local government). It impounds the Mcelhatten Creek.
The dam stands 59 feet tall and stretches 910 feet across, creates a reservoir covering 110 acres, has a maximum storage capacity of 2,520 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1965, 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 12/04/2020.
At 59 feet, this dam is taller than 95% of all dams in the United States.
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 | Clinton |
| River/Stream | Mcelhatten Creek |
| Coordinates | 41.07361, -77.32167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 59 ft |
| Dam Height | 59 ft |
| Dam Length | 910 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 2,520 acre-ft |
| Max Storage | 2,520 acre-ft |
| Normal Storage | 1,720 acre-ft |
| Surface Area | 110 acres |
| Drainage Area | 3 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF LOCK HAVEN |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 12/04/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | PA00394 |
| Federal ID | PA00394 |
| More Info | State Dam Safety Program |