Dams in Whitman County, Washington
3Total Dams
1High Hazard
1Significant
Dam Safety in Whitman County, Washington
Whitman County has 3 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification.
The average dam in Whitman County is 40 years old. The most common purpose is other. The tallest dam is Horn School Rest Area Sewage Lagoon at 19 ft.
Explore more: Oldest dams in Washington · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Horn School Rest Area Sewage Lagoon | High | Satisfactory | 19 | Other | 1996 |
| Rosalia Sewage Lagoon | Significant | Fair | 10 | Other | 1989 |
| Albion Sewage Treatment Lagoons | Low | 8 | Other | 1972 |