Rawson Wwt Lagoon
Rawson Wwt Lagoon is an earth dam located in Hancock County, Ohio, built in 2003. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Rawson Wwt Lagoon
The primary purpose of Rawson Wwt Lagoon is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Village Of Rawson (local government). It impounds the Ottawa Creek.
The dam stands 15 feet tall and stretches 5,100 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 82 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2003, 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 12/12/2024.
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Location
| State | Ohio |
| County | Hancock |
| River/Stream | Ottawa Creek |
| Coordinates | 40.96528, -83.79694 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 5,100 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 82 acre-ft |
| Max Storage | 82 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 11 cfs |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Village of Rawson |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/12/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OH03041 |
| Federal ID | OH03041 |
| More Info | State Dam Safety Program |