West Fork Big Creek Dam B-119a
West Fork Big Creek Dam B-119a is an earth dam located in Harrison County, Missouri, built in 1994. It carries a Low hazard potential classification.
About West Fork Big Creek Dam B-119a
The primary purpose of West Fork Big Creek Dam B-119a 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 27 feet tall and stretches 390 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 30 acre-feet, and collects water from a drainage area of 230 square miles. Completed in 1994, the structure is 32 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. The most recent inspection on record was 08/01/1995. That was over 30 years ago.
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Location
| State | Missouri |
| County | Harrison |
| Nearest City | Bethany |
| River/Stream | Tr-west Fork Big Creek |
| Coordinates | 40.33221, -94.05763 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 26 ft |
| Dam Length | 390 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 30 acre-ft |
| Max Storage | 30 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 230 sq mi |
| Max Discharge | 61 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 |
| Last Inspection | 08/01/1995 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50614 |
| Federal ID | MO50614 |
| More Info | State Dam Safety Program |