Class Codes & Rates:

Code 5507 is applied to insureds engaged in street or road construction involving subsurface work. It contemplates the clearing of the right-of-way, earth excavating, and filling and grading when performed by the principal street or road contractor or other insured street or road subcontractors. In connection with earth excavation, it is not uncommon that some detached rock or small boulders may be removed and broken up; however, all mass rock excavation must be separately classified. Mass rock operations generally involve placing explosive charges into holes that have been drilled into rock formations. After the explosives are set off, jackhammers or steel balls are used to break the fragmented rocks into still smaller pieces, which can then be removed from a site. The process is described in greater detail in Code 6217.