South Tamarack Lake is an earth dam located in Becker County, Minnesota, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 2,640 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About South Tamarack Lake
The primary purpose of South Tamarack Lake is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by USFWS (federal). It impounds the Buffalo River-tr near Richwood.
The dam stands 10 feet tall and stretches 2,640 feet across, has a maximum storage capacity of 4,820 acre-feet, and collects water from a drainage area of 3 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.
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Location
| State | Minnesota |
| County | Becker |
| Nearest City | Richwood |
| River/Stream | Buffalo River-tr |
| Coordinates | 46.89835, -95.69480 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 2,640 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 4,820 acre-ft |
| Max Storage | 4,820 acre-ft |
| Normal Storage | 1,137 acre-ft |
| Drainage Area | 3 sq mi |
| Max Discharge | 10 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | USFWS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00620 |
| Federal ID | MN00620 |
| More Info | State Dam Safety Program |