Lory Lake Structure 1 is a gravity dam located in Isanti County, Minnesota, built in 1962. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 800 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 Lory Lake Structure 1
The primary purpose of Lory Lake Structure 1 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 Mndnr-wildlife (state). It impounds the Ties Creek-tr near Springvale.
The dam stands 16 feet tall and stretches 800 feet across, creates a reservoir covering 341 acres, has a maximum storage capacity of 2,100 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1962, 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 07/11/2024.
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Location
| State | Minnesota |
| County | Isanti |
| Nearest City | Springvale |
| River/Stream | Ties Creek-tr |
| Coordinates | 45.71939, -93.35370 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 16 ft |
| Dam Height | 7 ft |
| Dam Length | 800 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 2,100 acre-ft |
| Max Storage | 2,100 acre-ft |
| Normal Storage | 1,100 acre-ft |
| Surface Area | 341 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 102 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Mndnr-wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/11/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00529 |
| Federal ID | MN00529 |
| More Info | State Dam Safety Program |