West Fork Big Creek Dam B-146
West Fork Big Creek Dam B-146 is an earth dam located in Harrison County, Missouri, built in 1991. It carries a Low hazard potential classification.
About West Fork Big Creek Dam B-146
The primary purpose of West Fork Big Creek Dam B-146 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 Watershed (local government). It impounds the Tr-west Fork Big Creek near Pattonsburg.
The dam stands 32 feet tall and stretches 330 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 340 square miles. Completed in 1991, the structure is 35 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 32 feet, this dam is taller than 76% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | Harrison |
| Nearest City | Pattonsburg |
| River/Stream | Tr-west Fork Big Creek |
| Coordinates | 40.18623, -94.09056 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 330 ft |
| Year Completed | 1991 (35 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 340 sq mi |
| Max Discharge | 312 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | WEST FORK BIG CREEK WATERSHED |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50085 |
| Federal ID | MO50085 |
| More Info | State Dam Safety Program |