Mt Shamrock Quarry
Holcim’s Mt Shamrock Quarry produces high quality construction materials such as rail ballast, aggregates (for concrete and asphalt) and road bases that are essential for the construction of homes, roads, railways, bridges, marinas, hospitals, schools, shopping centres, and other infrastructure within our communities.
Community & Environment Enquiries
Victoria has a growing demand for construction materials due to major infrastructure projects as part of the Victoria’s Big Build and civil construction for housing and industrial developments in the south east growth corridor. In Victoria, there is a current shortage of suitable approved quarry materials that are in close transport proximity to meet the needs of these projects. Mt Shamrock Quarry is ideally located for ongoing affordable supply to residential and commercial developments.
Future resource investigation
Blue line - Work Authority 174 boundary
Yellow line - current approved extraction area
White line - conceptual extension area
In February 2024, Holcim communicated to the community (via face to face, letter drop and through the Environmental Review Committee) that it intended to undertake a drilling program in the North East corner of the site, within the current Work Authority Boundary, to understand the quantity and quality of the older basalt material in this area.
The drilling program has now been completed, and Holcim has determined that there is sufficient quality resource to consider an application to extend the current extraction area within the current approved Work Authority Boundary of WA174.
Prior to lodging the application for an extension of the extraction area, there are a number of key technical assessments that must be completed.
The drilling program has now been completed, and Holcim has determined that there is sufficient quality resource to consider an application to extend the current extraction area within the current approved Work Authority Boundary of WA174.
Prior to lodging the application for an extension of the extraction area, there are a number of key technical assessments that must be completed.
These technical studies relate to the following areas (including but not limited to). These assessments will be completed by subject matter experts in their respective field:
- Pit design
- Geotechnical
- Ground water
- Surface water
- Rehabilitation & Landform
- Erosion and Sedimentation control
- Landscape and Visual amenity
- Air Quality (dust)
- Noise and Vibration
- Blasting
- Ecology (Flora and Fauna)
- Cultural Heritage
The results of these technical assessments may change the final proposed pit shape and size (within the confines of the Work Authority). Upon completion of these technical assessments, Holcim will then submit some of them to the Department of Transport & Planning (DTP) Impacts assessment unit (IAU) as part of the Environmental Effects Statement (EES) referral process. These assessments will be publicly available upon lodging of the referral. This process will determine if an EES is required.
The next scheduled ERC meeting is on 21st August and a further update will be provided to the ERC and the broader community then.
Please note:
Holcim is not considering any changes to its approved current operating hours which are:
- 7am-6pm Monday to Friday
- 7am to noon Saturday
- Blasting Monday to Friday 11am-12 Noon, and 2pm-3pm
- Critical maintenance can occur outside these hours
Holcim is not considering any changes to site access roads or truck routes in and out of the Quarry.
