TUNNELING — all work to completion — including lining
This classification applies to the construction of tunnels and caves and includes the incidental installation of concrete lining, electrical wiring and plumbing. This classification also applies to tunneling underneath roadways or railroads by hydraulic jacking pipe exceeding 6" in diameter through the earth. This classification also applies to tunneling in connection with dam construction and street or road construction.
Hydraulic jacking pipe not exceeding 6" in diameter through the earth to produce sewer, gas or water lines shall be separately classified.
Shown below is the previously published phraseology and footnote | Effective Date |
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TUNNELING — all work to completion — including lining | 1/1/2016 |
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