Big Woods Lake Dam
Big Woods Lake Dam is an earth dam located in Jefferson County, Missouri, built in 1978. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Big Woods Lake Dam
The primary purpose of Big Woods Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Big Woods, Incorporated (private). It impounds the Tr To Big River near Blackwell.
The dam stands 38 feet tall and stretches 730 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 249 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1978, the structure is 48 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/21/2021.
At 38 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Missouri |
| County | Jefferson |
| Nearest City | Blackwell |
| River/Stream | Tr To Big River |
| Coordinates | 38.07371, -90.61217 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 730 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 249 acre-ft |
| Max Storage | 249 acre-ft |
| Normal Storage | 249 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 722 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | BIG WOODS, INCORPORATED |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/21/2021 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO31655 |
| Federal ID | MO31655 |
| More Info | State Dam Safety Program |