Ferrycarrig was engaged by Veolia Water Technologies to deliver the North West Growth Centre – Package 3C Work Lot 1A Box Hill Drinking Water Distribution Main to Sydney Water under the Delivery Management Program.
The Work Lot 1A drinking water distribution main is approximately 2,838m long and includes DN375 DICL, DN300 DICL, DN426SCL, and DN324 SCL to be installed by open trenching method along Edwards Road, Nelson Road, and Old Pitt Town Road. New drinking water distribution main will be connected to existing DN300 DICL 2016 CN145160PW in Edwards Road and DN375 DICL CN154984PW outside 150 Old Pitt Town Road.
Open trench construction methodology was proposed for the entire alignment, although one major concrete driveway was required to be underbored to minimise access disruption to the residents and restoration works.
This project was environmentally sensitive as some sections of the new watermain alignment were constructed under a Heritage Permit for non-indigenous heritage works within the heritage curtilage of Old Pitt Town Road Bypass. Ferrycarrig incorporated a full suite of measures for heritage protection, including Chance Finds Stop Work procedures in all inductions, Environmental Work Method Statements, and Toolbox Talks. Ferrycarrig used separate storage of each layer of excavated material and use of track mats to avoid impact to the roadway.
Our approach to communication with stakeholders and property owners was well planned and consistent with Sydney Water’s policies, guidelines, processes, and protocols as well as the Communications Strategy for the project. The overall communication goal of our team was to work with both property owners and key stakeholders to ensure they were informed and consulted; potential issues and impacts were proactively identified and managed effectively; enquiries and concerns were dealt with promptly and effective two-way communication was developed and maintained.
The project went through significant changes of design after our site mobilisation. At the planning and design stage, the Hills Shire Council didn’t finalise the design of the Old Pitt Town Road upgrade which includes the future stormwater drainage.
During the construction phase, the Hills Shire Council finished the final design of Old Pitt Town Road upgrade. It was then was determined that the new watermain would clash with the future Council stormwater drainage.
Ferrycarrig provided additional potholing and collaborated with Sydney Water and head contractor Veolia Water Technologies in redesigning the watermain alignment.
Despite the challenges, Ferrycarrig was able to provide additional crews to ensure timely delivery of the project which had been impacted by design delay.