Prairie Portage
Prairie Portage is a concrete dam located in County, Minnesota, built in 1975. It carries a Low hazard potential classification.
About Prairie Portage
The primary purpose of Prairie Portage is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usda Fs (federal). It impounds the Sucker Chain.
The dam stands 13 feet tall and stretches 108 feet across, has a maximum storage capacity of 3,163 acre-feet, and collects water from a drainage area of 230 square miles. Completed in 1975, 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. The most recent inspection on record was 06/23/2016.
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Location
| State | Minnesota |
| River/Stream | Sucker Chain |
| Coordinates | 48.04985, -91.43786 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 13 ft |
| Dam Height | 10 ft |
| Dam Length | 108 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 3,163 acre-ft |
| Max Storage | 3,163 acre-ft |
| Normal Storage | 2,500 acre-ft |
| Drainage Area | 230 sq mi |
| Max Discharge | 3,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/23/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00646 |
| Federal ID | MN00646 |
| More Info | State Dam Safety Program |