North Fork of S Fork Site 3 is an earth dam located in Montgomery County, Arkansas, built in 1986. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 65 ft65 ft tall and 1,580 ft long, taller than 96% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About North Fork of S Fork Site 3
The primary purpose of North Fork of S Fork Site 3 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 Montgomery County Soil and Water Conservation District (local government). It impounds the North Fork Ouachita River near Mount Ida.
The dam stands 65 feet tall and stretches 1,580 feet across, creates a reservoir covering 66 acres, has a maximum storage capacity of 4,625 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1986, the structure is 40 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/26/2013. That was over 13 years ago.
At 65 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | Arkansas |
| County | Montgomery |
| Nearest City | Mount Ida |
| River/Stream | North Fork Ouachita River |
| Coordinates | 34.54306, -93.79667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 65 ft |
| Dam Height | 65 ft |
| Dam Length | 1,580 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 4,625 acre-ft |
| Max Storage | 4,625 acre-ft |
| Normal Storage | 703 acre-ft |
| Surface Area | 66 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 9,853 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Montgomery County Soil and Water Conservation District |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/26/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AR01469 |
| Federal ID | AR01469 |
| More Info | State Dam Safety Program |