Black Swan Lake Dam
Black Swan Lake Dam is an earth dam located in Johnson County, Kansas, built in 1982. It carries a High hazard potential classification and has a fair condition assessment.
About Black Swan Lake Dam
The primary purpose of Black Swan Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Black Swan Homeowners Association (private). It impounds the Kansas River-tr near Holliday.
The dam stands 62 feet tall and stretches 550 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 263 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1982, the structure is 44 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 02/26/2024.
At 62 feet, this dam is taller than 95% 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 | Johnson |
| Nearest City | Holliday |
| River/Stream | Kansas River-tr |
| Coordinates | 39.04368, -94.73371 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 62 ft |
| Dam Height | 62 ft |
| Dam Length | 550 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 263 acre-ft |
| Max Storage | 263 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | BLACK SWAN HOMEOWNERS ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 02/26/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS03904 |
| Federal ID | KS03904 |
| More Info | State Dam Safety Program |