Tunnels or shuttering therefor preconstructed as a whole or continuously made, and moved into place on the water-bed, e.g. into a preformed trench

Full Title

Underground or underwater structures; Retaining walls > Tunnels submerged into, or built in, open water > Tunnels or shuttering therefor preconstructed as a whole or continuously made, and moved into place on the water-bed, e.g. into a preformed trench

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING

Subclass:

FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES