Marysville Sewage Lagoon
Marysville Sewage Lagoon is an earth dam located in Snohomish County, Washington, built in 1959. It carries a Low hazard potential classification.
About Marysville Sewage Lagoon
Marysville Sewage Lagoon is a dam in Snohomish, Washington. The dam is owned by Marysville City (local government). It impounds the Tr-ebey Slough-offstream near Marysville.
The dam stands 11 feet tall and stretches 2,590 feet across, creates a reservoir covering 90 acres, has a maximum storage capacity of 144 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1959, the structure is well into its service life at over 50 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. The most recent inspection on record was 09/03/2001. That was over 24 years ago.
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Location
| State | Washington |
| County | Snohomish |
| Nearest City | Marysville |
| River/Stream | Tr-ebey Slough-offstream |
| Coordinates | 48.04367, -122.17231 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Length | 2,590 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 144 acre-ft |
| Max Storage | 144 acre-ft |
| Normal Storage | 144 acre-ft |
| Surface Area | 90 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Marysville City |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Last Inspection | 09/03/2001 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA01233 |
| Federal ID | WA01233 |
| More Info | State Dam Safety Program |