31 74 00
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Tunnel Construction
Includes lining of tunnel after tunnel excavation.
Alternate Terms/Abbreviations shotcrete: gunite.

31 74 00 Tunnel Construction 1 Product
31 74 13 Cast-in-Place Concrete Tunnel Lining 1 Product
31 74 16 Precast Concrete Tunnel Lining
31 74 19 Shotcrete Tunnel Lining