Scs-whitegrass-waterhole Cr Site-1
Scs-whitegrass-waterhole Cr Site-1 is an earth dam located in McCurtain County, Oklahoma, built in 1961. It carries a High hazard potential classification and has a fair condition assessment.
About Scs-whitegrass-waterhole Cr Site-1
The primary purpose of Scs-whitegrass-waterhole Cr Site-1 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Valliant Cons Dist (state). It impounds the Tr-whitegrass Creek near Iron Stob Corner.
The dam stands 18 feet tall and stretches 1,575 feet across, creates a reservoir covering 8 acres, and has a maximum storage capacity of 252 acre-feet. Completed in 1961, 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 10/24/2011. That was 14 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
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 Oklahoma 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 | Oklahoma |
| County | McCurtain |
| Nearest City | Iron Stob Corner |
| River/Stream | Tr-whitegrass Creek |
| Coordinates | 33.92634, -95.03252 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 1,575 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 252 acre-ft |
| Max Storage | 252 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 8 acres |
| Max Discharge | 458 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | VALLIANT CONS DIST |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 10/24/2011 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | OK02064 |
| Federal ID | OK02064 |
| More Info | State Dam Safety Program |