Anderson Dam
Key Takeaway
Anderson Dam is classified as low hazard in Washington. It was completed in 1987 and is 39 years old. Its primary use is irrigation.
Physical Details
| Dam Length | 310 ft |
| Dam Type | Rockfill |
| Max Storage | 197 acre-ft |
| Normal Storage | 112 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 485 cfs |
| Year Completed | 1987 (39 years old) |
| NID ID | WA00390 |
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
Royal Ridges Retreat
Private
Nearby Dams
Jones Dam
Clark, WA
Low HazardFargher Lake Dam
Clark, WA
Low HazardErickson Dam
Clark, WA
High HazardElmer Dam
Clark, WA
High HazardTri Mountain Estates Dam
Clark, WA
High HazardMerwin
Cowlitz, WA
High Hazard 313 ftCadman Lewisville S&G Pit
Clark, WA
High HazardYale
Cowlitz, WA
High Hazard 323 ftFrequently Asked Questions
What is the hazard classification of Anderson Dam?
Anderson Dam 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 Anderson Dam?
Anderson Dam is owned by Royal Ridges Retreat (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Anderson Dam built?
Anderson Dam was completed in 1987, making it 39 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 Anderson Dam?
Anderson Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.