West Fork Big Creek Dam P- 11 is an earth dam located in Harrison County, Missouri, built in 2003. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 400 ft long, taller than 78% 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 P- 11
The primary purpose of West Fork Big Creek Dam P- 11 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 Big Creek Ws Distric (local government). It impounds the Tr-little Polecat near Bridgeport.
The dam stands 34 feet tall and stretches 400 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 57 acre-feet, and collects water from a drainage area of 55 square miles. Completed in 2003, the structure is relatively new.
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. The most recent inspection on record was 01/05/2004. That was over 22 years ago.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Missouri |
| County | Harrison |
| Nearest City | Bridgeport |
| River/Stream | Tr-little Polecat |
| Coordinates | 40.28649, -93.93771 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 25 ft |
| Dam Length | 400 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 57 acre-ft |
| Max Storage | 57 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 55 sq mi |
| Max Discharge | 104 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | West Fork Big Creek Ws Distric |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 01/05/2004 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO51165 |
| Federal ID | MO51165 |
| More Info | State Dam Safety Program |