West Fork Big Creek Dam B- 99
West Fork Big Creek Dam B- 99 is an earth dam located in Harrison County, Missouri, built in 1992. It carries a Low hazard potential classification.
About West Fork Big Creek Dam B- 99
The primary purpose of West Fork Big Creek Dam B- 99 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 Bethany.
The dam stands 32 feet tall and stretches 410 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 44 square miles. Completed in 1992, the structure is 34 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.
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Location
| State | Missouri |
| County | Harrison |
| Nearest City | Bethany |
| River/Stream | Tr-west Fork Big Creek |
| Coordinates | 40.38811, -94.06482 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 31 ft |
| Dam Length | 410 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 128 acre-ft |
| Max Storage | 128 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 44 sq mi |
| Max Discharge | 442 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 | MO50596 |
| Federal ID | MO50596 |
| More Info | State Dam Safety Program |