Dam & Lock Construction workers comp rate in Washington
The filed workers comp rate for class code 6620 (Dam & Lock Construction) in Washington is $8.69 per $100 of payroll , effective 2026-01-01. On $500,000 of payroll, that's roughly $43,446 in base premium.
Rate per $100 $8.69
Rate type manual_rate
Authority NCCI / state rating bureau
Effective 2026-01-01
Confidence HIGH
FAQ
What is the workers comp rate for code 6620 in Washington?
The filed workers comp loss cost / rate for NCCI class code 6620 (Dam & Lock Construction) in Washington is $8.69 per $100 of payroll, effective 2026-01-01.
How much would I pay in Washington for code 6620 on $500,000 of payroll?
At $8.69 per $100, $500,000 of payroll yields a base premium of $43,446 before experience modifier and schedule credits. Actual cost varies by carrier and underwriting.