Three Rivers Mill Pond Dam is an earth dam located in Snohomish County, Washington, built in 1946. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 1,000 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Three Rivers Mill Pond Dam
The primary purpose of Three Rivers Mill Pond Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Hampton Lumber Mills Wa Inc. (private). It impounds the Sauk River-offstream.
The dam stands 10 feet tall and stretches 1,000 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1946, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | Washington |
| County | Snohomish |
| River/Stream | Sauk River-offstream |
| Coordinates | 48.26650, -121.59790 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Hampton Lumber Mills Wa Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00204 |
| Federal ID | WA00204 |
| More Info | State Dam Safety Program |