Nettle Lake Wwtp Lagoons
Nettle Lake Wwtp Lagoons is an earth dam located in Williams County, Ohio, built in 1996. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Nettle Lake Wwtp Lagoons
The primary purpose of Nettle Lake Wwtp Lagoons 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 Williams County Sanitary Engineer (local government). It impounds the Nettle Creek near Montpelier.
The dam stands 11 feet tall and stretches 9,280 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1996, the structure is 30 years old.
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. The most recent inspection on record was 06/06/2023.
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Location
| State | Ohio |
| County | Williams |
| Nearest City | Montpelier |
| River/Stream | Nettle Creek |
| Coordinates | 41.67361, -84.71083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 9,280 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 41 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Williams County Sanitary Engineer |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/06/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | OH02909 |
| Federal ID | OH02909 |
| More Info | State Dam Safety Program |