Lacygne Lake Dam
Lacygne Lake Dam is an earth dam located in Linn County, Kansas, built in 1971. It carries a High hazard potential classification and has a fair condition assessment.
About Lacygne Lake Dam
Lacygne Lake Dam is a dam in Linn, Kansas. The dam is owned by Evergy, Inc. (private). It impounds the North Sugar Creek near Boicourt.
The dam stands 76 feet tall and stretches 6,970 feet across, creates a reservoir covering 2,600 acres, has a maximum storage capacity of 85,000 acre-feet, and collects water from a drainage area of 57 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 10/26/2022.
At 76 feet, this dam is taller than 97% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Kansas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Kansas |
| County | Linn |
| Nearest City | Boicourt |
| River/Stream | North Sugar Creek |
| Coordinates | 38.33883, -94.65387 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 76 ft |
| Dam Height | 61 ft |
| Dam Length | 6,970 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 85,000 acre-ft |
| Max Storage | 85,000 acre-ft |
| Normal Storage | 40,000 acre-ft |
| Surface Area | 2,600 acres |
| Drainage Area | 57 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | EVERGY, INC. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/26/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS01305 |
| Federal ID | KS01305 |
| More Info | State Dam Safety Program |