Hornsby Quarry

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Overview

As part of the NorthConnex project's commitment to reuse materials where possible, about one million cubic metres of excavated rock and soil from tunnel excavation will be used to partially fill the Hornsby Quarry.

The Hornsby Quarry Road Construction Spoil Management Project will fill the quarry void with spoil to a level that will allow Hornsby Shire Council to start rehabilitating the site to a public recreation area benefiting the local community.

The project involves hauling spoil from the NorthConnex tunnelling sites to the Hornsby Quarry using the existing road network. Entry and exit to the quarry is via Bridge Road. Spoil is being unloaded from trucks and transferred onto a conveyor system which safely carries the spoil to the bottom of the void.

At project completion, the site will be demobilised and rehabilitated in consultation with Council. Council has made a video about the project which is available here.

Latest news

Work at Hornsby Quarry is progressing with the project recently passing the halfway mark. More than 600,000 cubic metres of spoil has been deposited into the Quarry void - with up to one million cubic metres of spoil expected to be received from the NorthConnex project.

Project timeline

Minister approval

The Minister for Planning approved the Hornsby Quarry Construction Spoil Management Project on 18 January 2016.

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Preparation

Early work at the Quarry started in mid 2016 and included clearing vegetation, establishing environmental controls and installing construction perimeter fencing to the Old Mans Valley stockpile areas to limit public access.

Conveyor system

A large conveyor system is being used to transport spoil to the bottom of the quarry and spread it evenly.

Start of haulage

Bridge Road has been widened between Hornsby TAFE and Roper Lane and street parking has been temporarily closed on Bridge Road between Peats Ferry Road and Roper Lane. The existing access track from Bridge Road to Old Mans Valley has been widened. Spoil haulage commenced in the first half of 2017. Tunnel spoil haulage and placement is expected to continue to mid 2018.

Hornsby Park

After NorthConnex has completed partially filling Hornsby Quarry with spoil, Hornsby Council will commence redeveloping the site. The aim is to create Hornsby Park, which will be the region’s premier new parkland. Community consultation on the concept design has closed and Council is continuing planning.

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