Snoqualmie Mill Pond Dam is an other dam located in King County, Washington, built in 1917. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 3,000 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 Snoqualmie Mill Pond Dam
The primary purpose of Snoqualmie Mill Pond Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Weyerhaeuser (private). It impounds the Tr-snoqualmie River near Snoqualmie.
The dam stands 10 feet tall and stretches 3,000 feet across, creates a reservoir covering 66 acres, has a maximum storage capacity of 396 acre-feet, and collects water from a drainage area of 375 square miles. Completed in 1917, the structure is over a century 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.
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Location
| State | Washington |
| County | King |
| Nearest City | Snoqualmie |
| River/Stream | Tr-snoqualmie River |
| Coordinates | 47.52934, -121.81931 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 10 ft |
| Dam Length | 3,000 ft |
| Year Completed | 1917 (109 years old) |
Storage & Hydraulics
| NID Storage | 396 acre-ft |
| Max Storage | 396 acre-ft |
| Normal Storage | 330 acre-ft |
| Surface Area | 66 acres |
| Drainage Area | 375 sq mi |
| Max Discharge | 45 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Weyerhaeuser |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00307 |
| Federal ID | WA00307 |
| More Info | State Dam Safety Program |