Charter
Charter is a gravity dam located in Itasca County, Minnesota, built in 1967. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Charter
Charter is a dam in Itasca, Minnesota. The dam is owned by Hanna Mining Company Age (private). It impounds the Swan River near Warba.
The dam stands 10 feet tall and stretches 170 feet across, has a maximum storage capacity of 750 acre-feet, and collects water from a drainage area of 113 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 08/18/2016.
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Location
| State | Minnesota |
| County | Itasca |
| Nearest City | Warba |
| River/Stream | Swan River |
| Coordinates | 47.28878, -93.23222 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 8 ft |
| Dam Length | 170 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 750 acre-ft |
| Max Storage | 750 acre-ft |
| Normal Storage | 250 acre-ft |
| Drainage Area | 113 sq mi |
| Max Discharge | 2,590 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Hanna Mining Company Age |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/18/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00658 |
| Federal ID | MN00658 |
| More Info | State Dam Safety Program |