Deepdale Pipe Protection Works

The construction of the EPPS Pipeline represented a synthesis of DM Civil’s capabilities. Namely, a diverse mixture of well-planned construction methodologies combined in order to carry out a complex project in a built up and difficult location.

The bulk of the works constituted HDD installation of the DN250 steel line pipe. This involved strategic positioning of HDD entry/exit pits for fabrication of the HDD pipe strings and in-house drafting of the HDD profiles to account for ground conditions, pipe bending and the constrained working areas. Despite drill shots up to 330m long, and in varying ground conditions, each shot was ultimately successful and high rates of productivity were achieved despite encountering groundwater, coffee rock and working amongst many live congested streets.

The open excavated portion of the works constituted an approximately 1km work front through the narrow suburban streets of Bayswater. Dealing with very sandy ground conditions, tight working spaces, well established trees and verges, re-designs and re-alignments, the construction team completed this portion of the works with minimal issues.

Pilot boring to install line pipe for high pressure gas applications is not a typical method utilised by our client ATCO Gas. However, pilot boring was successfully carried out across this project with 13 bores completed. This method proved most useful in areas too tight for HDD strings to be fabricated, but where trenchless installation was still necessary due to the presence of high-profile existing services and roads.

The success of the EPPS Pipeline project highlights the diverse, coordinated and high quality work that has made DM Civil a contender in the gas pipeline construction industry, and a favoured contractor amongst many clients.