Washington · Significant
What is the classification criteria for Washington · Significant?
For Washington, hazard classification is Significant; classification criteria is located in areas where dam failure poses a risk for loss of life; inspection frequency is every five years; mandatory is yes; inspector qualification is dam safety engineers, recorded from its source on 2026-08-18.
Note: "significant hazard" dams are inspected every five years based on a proviso in the 2009 budget passed by the Legislature.
— ecology.wa.gov, retrieved 2026-08-18
- State
- Washington
- Hazard classification
- Significant verified
- Classification criteria
- located in areas where dam failure poses a risk for loss of life
- Inspection frequency
- every five years verified
- Mandatory
- yes our reading
- Inspector qualification
- dam safety engineers
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
Source
- ecology.wa.govhttps://ecology.wa.gov/water-shorelines/water-supply/dams/info-for-dam-owners/inspections