South Fork Blackwater River Dam A- 3
Key Takeaway
South Fork Blackwater River Dam A- 3 is classified as low hazard in Missouri. It was completed in 1966 and is 60 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 25 ft (taller than 23.5% in MO) |
| Dam Length | 610 ft |
| Dam Type | Earth |
| Max Storage | 341 acre-ft |
| Normal Storage | 37 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 957 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | MO50243 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
S.FK.BLKWTR R.WSHD.SBDST
Local Government
Nearby Dams
South Fork Blackwater River Dam A-27
Johnson, MO
Low Hazard 24 ftHolden New City Reservoir
Johnson, MO
High Hazard 58 ftSouth Fork Blackwater River Dam A- 2
Johnson, MO
Low Hazard 24 ftSouth Fork Blackwater River Dam A-26
Johnson, MO
Low Hazard 25 ftSouth Fork Blackwater River Dam E-26
Johnson, MO
Low Hazard 22 ftSouth Fork Blackwater River Dam A-24
Johnson, MO
Low Hazard 20 ftE.Br So Fk Blackwater F-33
Johnson, MO
Low Hazard 30 ftSouth Fork Blackwater River Dam A- 1
Johnson, MO
High Hazard 29 ftFrequently Asked Questions
What is the hazard classification of South Fork Blackwater River Dam A- 3?
South Fork Blackwater River Dam A- 3 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates South Fork Blackwater River Dam A- 3?
South Fork Blackwater River Dam A- 3 is owned by S.FK.BLKWTR R.WSHD.SBDST (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was South Fork Blackwater River Dam A- 3 built?
South Fork Blackwater River Dam A- 3 was completed in 1966, making it 60 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of South Fork Blackwater River Dam A- 3?
South Fork Blackwater River Dam A- 3 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is South Fork Blackwater River Dam A- 3?
South Fork Blackwater River Dam A- 3 has a dam height of 25 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.