West Fork Big Creek Dam B-156 is an earth dam located in Harrison County, Missouri, built in 1998. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 530 ft long, taller than 74% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About West Fork Big Creek Dam B-156
The primary purpose of West Fork Big Creek Dam B-156 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 West Fork of Big Creek Subdist (private). It impounds the Poor Tom Branch near Pattonsburg, Mo..
The dam stands 32 feet tall and stretches 530 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 94 acre-feet, and collects water from a drainage area of 423 square miles. Completed in 1998, the structure is 28 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.
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Location
| State | Missouri |
| County | Harrison |
| Nearest City | Pattonsburg, Mo. |
| River/Stream | Poor Tom Branch |
| Coordinates | 40.18128, -94.03129 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 29 ft |
| Dam Length | 530 ft |
| Year Completed | 1998 (28 years old) |
Storage & Hydraulics
| NID Storage | 94 acre-ft |
| Max Storage | 94 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 423 sq mi |
| Max Discharge | 2,230 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | West Fork of Big Creek Subdist |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50795 |
| Federal ID | MO50795 |
| More Info | State Dam Safety Program |