Hornsby Quarry

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Overview

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

The Hornsby Quarry Road Construction Spoil Management Project has filled the 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 involved hauling spoil from the NorthConnex tunnelling sites to the Hornsby Quarry using the existing road network. Entry and exit to the quarry was via Bridge Road. Spoil was unloaded from trucks and transferred onto a conveyor system which safely carried the spoil to the bottom of the void.

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

Latest news

The last truck delivery of tunnel spoil was made to Hornsby Quarry on Friday 25 January 2019. In all more than one million cubic metres of clean tunnel spoil has been deposited in the void. The project will now focus on removing equipment from the site and carrying out remediation works, including the resurfacing of Bridge Road. For more information read the media release.

One of the last trucks at Hornsby Quarry

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 continued to January 2019.

Spoil haulage completed

More than one million cubic metres of spoil has been placed in the quarry. Spoil haulage finished in January 2019. The site will now be rehabilitated and handed back to Hornsby Shire Council.

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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