West Fork Big Creek Dam P- 46
West Fork Big Creek Dam P- 46 is an earth dam located in Harrison County, Missouri, built in 1999. It carries a Low hazard potential classification.
About West Fork Big Creek Dam P- 46
The primary purpose of West Fork Big Creek Dam P- 46 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 Harrison Co Swcd & West Fork B (local government). It impounds the Tr-polecat Creek near Pattonsburg (old).
The dam stands 34 feet tall and stretches 515 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 141 acre-feet, and collects water from a drainage area of 230 square miles. Completed in 1999, the structure is 27 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
At 34 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Missouri |
| County | Harrison |
| Nearest City | Pattonsburg (old) |
| River/Stream | Tr-polecat Creek |
| Coordinates | 40.20632, -94.02354 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 29 ft |
| Dam Length | 515 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 141 acre-ft |
| Max Storage | 141 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 230 sq mi |
| Max Discharge | 240 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | HARRISON CO SWCD & WEST FORK B |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50964 |
| Federal ID | MO50964 |
| More Info | State Dam Safety Program |