Herwig Pond
Herwig Pond is an earth dam located in Kanabec County, Minnesota, built in 1967. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Herwig Pond
The primary purpose of Herwig Pond is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Herwig, Erma (private). It impounds the Spring Brook near Grasston.
The dam stands 16 feet tall and stretches 560 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1967, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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 10/21/2016.
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Location
| State | Minnesota |
| County | Kanabec |
| Nearest City | Grasston |
| River/Stream | Spring Brook |
| Coordinates | 45.88438, -93.24430 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 560 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 60 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Herwig, Erma |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/21/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00274 |
| Federal ID | MN00274 |
| More Info | State Dam Safety Program |