Workers comp rates for code 6604: Tunnel Construction
NCCI class code 6604 covers Tunnel Construction in the construction industry. The median rate across 1 states is $0.342 per $100 payroll. Rates range from $0.342 in Washington to $0.342 in Washington.
Also known as: Tunneling Contractor
Cheapest 5 states for code 6604
- Washington $0.342
Most expensive 5 states
- Washington $0.342
Code 6604 rates in all 1 states
| State | Code | Rate per $100 | vs peers | Source |
|---|---|---|---|---|
| Washington monopolistic | 6604 | $0.342 | - | view |
Bottom quartile (cheap) Mid Top quartile (expensive)
FAQs about NCCI 6604
What occupation is NCCI class code 6604?
Class code 6604 is "Tunnel Construction" (also known as Tunneling Contractor), in the construction industry. The code is filed in 1 states.
What is the average workers comp rate for code 6604?
The median rate across 1 states is $0.342 per $100 of payroll, ranging from $0.342 (Washington) to $0.342 (Washington).
Why does code 6604 cost more in some states than others?
Workers comp rates reflect each state's loss experience for that occupation, the rating bureau's methodology (NCCI vs. independent), schedule rating credits, and the state's medical-cost inflation. Some states are monopolistic (only the state fund writes coverage) while others are open competitive markets.