South Bank Dairy Lagoon Dam is an earth dam located in Lewis County, Washington, built in 1980. It carries a Low hazard potential classification.
Dam profile
NID height · 40 ft40 ft tall, taller than 86% of U.S. dams with a recorded height. 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 South Bank Dairy Lagoon Dam
South Bank Dairy Lagoon Dam is a dam in Lewis, Washington. The dam is owned by South Bank Dairy (private).
The dam stands 40 feet tall, and has a maximum storage capacity of 22 acre-feet. Completed in 1980, the structure is 46 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 09/28/2009. That was over 17 years ago.
At 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Washington |
| County | Lewis |
| Coordinates | 46.51898, -123.12728 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 22 acre-ft |
| Max Storage | 22 acre-ft |
| Normal Storage | 17 acre-ft |
Ownership & Safety
| Purpose | Other |
| Owner | South Bank Dairy |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/28/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA02006 |
| Federal ID | WA02006 |
| More Info | State Dam Safety Program |