Locke Lake is a concrete dam located in Anoka County, Minnesota, built in 1956. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 100 ft long, taller than 50% of U.S. dams with a recorded height. 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 Locke Lake
The primary purpose of Locke Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City of Fridley (local government). It impounds the Rice Creek near Fridley.
The dam stands 25 feet tall and stretches 100 feet across, creates a reservoir covering 23 acres, has a maximum storage capacity of 320 acre-feet, and collects water from a drainage area of 200 square miles. Completed in 1956, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 05/13/2022.
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Location
| State | Minnesota |
| County | Anoka |
| Nearest City | Fridley |
| River/Stream | Rice Creek |
| Coordinates | 45.08975, -93.27500 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 25 ft |
| Dam Height | 21 ft |
| Dam Length | 100 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 320 acre-ft |
| Max Storage | 320 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 200 sq mi |
| Max Discharge | 3,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Fridley |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/13/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00396 |
| Federal ID | MN00396 |
| More Info | State Dam Safety Program |