Deck Assembly

DriveDesignation of the pipe installed from a jacking shaft to a reception shaft. train assembly for a split design boring machine.

Deformed and Reshaped

See Modified SlipliningA range of techniques in which the liner is reduced in cross sectional diameter before insertion into the Carrier Pipe. It is subsequently restored to close to its original diameter, generally forming a close fit with the original pipe. Methods of cross sectional area reduction include squeezing, folding into a U-shape or stretching. See Lining with Close-fit Pipes..

Delay Time

Lost time associated with the owner’s issues.

Department Contact

Assigned person responsible to represent the owning department for decision making and necessary notifications.

Dereliction

The gradual decay of a sewer network accelerated by the negligence of effective maintenance.