YOUNG COWRA RD RETICULATION MAINS

1.2kms of PVC Reticulation Mains – Road under bores and associated infrastructure

Hilltops Shire Council required a Design and Construct Potable pipeline upgrade for Young. Council has identified the need to replace an existing pipeline along the Olympic Highway (Cowra Rd). There are connections to existing rising mains, and 29 existing metered service lines along the alignment including connection to the John McGregor Reservoir, Hill St and Old Monteagle Rd, all branch line connections crossing the Olympic Highway will require under boring. All pipelines are to be kept in service throughout the works and transferred to the proposed new pipeline as part of the commissioning of the works.

Works Undertaken

• Open trench Construction of approximately 1.2km of DN200 PVC Water main.
• Open trench Construction of approximately 450m of DN100 PVC Water main.
• Installation of 5 Air release valves and Scour valve hydrants along the mainline.
• Installation of 4 Isolation Gate Valves along the pipeline.
• Connection into the existing DN250 supply main at John McGregor Reservoir
• 4 Trunk branch line connections to pick up existing branch lines
• 29 existing meter connections to be transferred off existing mainlines
• 4 Road crossings along pipeline route to be under bored
• Manage Traffic Control and traffic movements per day along Olympic Highway
• Testing – Commissioning and Disinfection of Pipeline

Highlights, Innovations and Key Risks

• Project finished on schedule and budget even with delays due to RMS works
• No major disruption to town water supply through the project duration
• RMS Road daily traffic management along roadside to eliminate traffic delays
• Manage Traffic Control with all interconnecting intersections along Olympic Highway per day
• No underground service strikes for the duration of the project
• 4 branch roads to cross without causing traffic delays or residential disruption