Collinwood Lake is a gravity dam located in Meeker County, Minnesota, built in 1955. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 11 ft11 ft tall and 32 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Collinwood Lake
The primary purpose of Collinwood Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mndnr-fisheries (state). It impounds the Collinwood Creek near French Lake.
The dam stands 11 feet tall and stretches 32 feet across, creates a reservoir covering 644 acres, has a maximum storage capacity of 8,580 acre-feet, and collects water from a drainage area of 50 square miles. Completed in 1955, 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 04/19/2019.
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Location
| State | Minnesota |
| County | Meeker |
| Nearest City | French Lake |
| River/Stream | Collinwood Creek |
| Coordinates | 45.06264, -94.25849 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 32 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 8,580 acre-ft |
| Max Storage | 8,580 acre-ft |
| Normal Storage | 6,864 acre-ft |
| Surface Area | 644 acres |
| Drainage Area | 50 sq mi |
| Max Discharge | 235 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mndnr-fisheries |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/19/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00059 |
| Federal ID | MN00059 |
| More Info | State Dam Safety Program |