Kyle
Kyle is an earth dam located in Oglala Lakota County, South Dakota, built in 1935. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Kyle
The primary purpose of Kyle is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Bia (federal). It impounds the Medicine Root Creek.
The dam stands 37 feet tall and stretches 1,130 feet across, creates a reservoir covering 68 acres, has a maximum storage capacity of 1,865 acre-feet, and collects water from a drainage area of 107 square miles. Completed in 1935, the structure is well-established, with more than 75 years of service.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 10/26/2023.
At 37 feet, this dam is taller than 84% of dams nationwide.
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 South Dakota 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 | South Dakota |
| County | Oglala Lakota |
| Nearest City | None |
| River/Stream | Medicine Root Creek |
| Coordinates | 43.43329, -102.17790 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 1,130 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 1,865 acre-ft |
| Max Storage | 1,865 acre-ft |
| Normal Storage | 379 acre-ft |
| Surface Area | 68 acres |
| Drainage Area | 107 sq mi |
| Max Discharge | 21,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/26/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | SD00964 |
| Federal ID | SD00964 |
| More Info | State Dam Safety Program |