Hap Cremean Lagoon #2
Hap Cremean Lagoon #2 is an earth dam located in Franklin County, Ohio, built in 2010. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Hap Cremean Lagoon #2
The primary purpose of Hap Cremean Lagoon #2 is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by City Of Columbus (local government). It impounds the Big Walnut Creek - Offstream near Columbus.
The dam stands 12 feet tall and stretches 1,260 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 141 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2010, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. 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 12/21/2020.
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Location
| State | Ohio |
| County | Franklin |
| Nearest City | Columbus |
| River/Stream | Big Walnut Creek - Offstream |
| Coordinates | 40.06111, -82.89083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 1,260 ft |
| Year Completed | 2010 (16 years old) |
Storage & Hydraulics
| NID Storage | 141 acre-ft |
| Max Storage | 141 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Tailings |
| Owner | City of Columbus |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/21/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH00738 |
| Federal ID | OH00738 |
| More Info | State Dam Safety Program |