Fourche Creek Dam 1 is an earth dam located in Ripley County, Missouri, built in 1975. It carries a Significant hazard potential classification.
Dam profile
NID height · 68 ft68 ft tall and 1,040 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 Fourche Creek Dam 1
The primary purpose of Fourche Creek Dam 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 Fourche Cr Wtsh Subdist (local government). It impounds the Fourche Creek near Pocahontas, Ark.
The dam stands 68 feet tall and stretches 1,040 feet across, creates a reservoir covering 49 acres, has a maximum storage capacity of 4,800 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1975, the structure is well into its service life at over 50 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.
At 68 feet, this dam is taller than 96% of all dams in the United States.
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Location
| State | Missouri |
| County | Ripley |
| Nearest City | Pocahontas, Ark |
| River/Stream | Fourche Creek |
| Coordinates | 36.63587, -91.05034 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 68 ft |
| Dam Height | 65 ft |
| Dam Length | 1,040 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 4,800 acre-ft |
| Max Storage | 4,800 acre-ft |
| Normal Storage | 544 acre-ft |
| Surface Area | 49 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 20,400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Fourche Cr Wtsh Subdist |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50435 |
| Federal ID | MO50435 |
| More Info | State Dam Safety Program |