Following the severe flooding event of 2022, Upper Pinbarren Creek Road suffered significant damage across multiple locations. To ensure the long-term stability of the road, Hazell Brothers undertook extensive slope remediation efforts, including soil reinforcement and drainage works.

Grassworx was engaged to provide expert erosion control solutions through hydromulching with Pro Matrix, applying a heavy-duty 5 tonnes of mulch per hectare to stabilise the site and promote rapid vegetation growth.

Client Overview
Client: Hazell Brothers
Location: Upper Pinbarren Creek Road, Queensland
Service Provided: Hydromulching with Pro Matrix

The Noosa Council-led flood recovery efforts, jointly funded by the Commonwealth-State Disaster Recovery Funding Arrangements, required comprehensive reconstruction work across nine affected sites along Upper Pinbarren Creek Road. The scope of the project included excavation, drainage works, soil nailing, grouting, and erosion control measures to protect against future weather events.

• Severe slope instability caused by flood damage, increasing the risk of erosion and road degradation.
• Need for a durable revegetation solution capable of withstanding heavy rainfall and
  preventing further soil displacement.
• Challenging terrain requiring precise application of hydromulch to ensure even coverage
  and adherence to steep slopes.
• Urgency to establish erosion-resistant ground cover before the next wet season.

Given these complexities, Hazell Brothers required an experienced contractor with the ability to execute high-performance erosion control solutions under demanding conditions. Grassworx was the trusted choice for delivering long-term slope stability through advanced hydromulching techniques.

Grassworx was selected for its:

• Expertise in slope remediation and large-scale hydromulching applications.
• Ability to apply high-performance erosion control products like Pro Matrix at the required density.
• Proven track record of successful revegetation projects across Queensland’s most challenging environments.
• Capacity to deliver cost-effective and environmentally sustainable erosion control solutions within tight project timelines.

The Solution

Grassworx implemented a hydromulching strategy using Pro Matrix at a rate of 5 tonnes per hectare. Pro Matrix is a high-performance hydraulic mulch designed to provide superior soil bonding and moisture retention, critical for ensuring the rapid establishment of vegetation on steep and erosion-prone slopes.

Process Overview:
1. Site Preparation – The surface was prepared to remove debris and ensure proper adhesion of the hydromulch.
2. Hydromulching Application – Using specialised equipment, the Pro Matrix slurry was applied evenly across all slopes, ensuring complete coverage and soil stabilisation.
3. Erosion Control & Moisture Retention – Pro Matrix formed a strong, protective layer that reduced water runoff and improved seed germination rates.
4. Vegetation Establishment – The hydromulch provided the necessary nutrients and moisture retention for rapid seed growth, reducing the likelihood of further soil displacement.

• Immediate soil stabilisation, significantly reducing erosion risk across the site.
• Successful vegetation establishment, promoting long-term slope stability.
• Even coverage and high seed germination rates due to the superior binding properties of Pro Matrix.
• A durable erosion control solution that supports the overall flood recovery efforts of Noosa Council.

Conclusion

The flood damage along Upper Pinbarren Creek Road required a robust, long-lasting erosion control solution. Grassworx delivered an expert hydromulching application that reinforced Hazell Brothers’ slope remediation efforts, ensuring the road’s stability for years to come. By leveraging Pro Matrix and advanced application techniques, Grassworx provided a sustainable, high- performance solution tailored to the site’s unique challenges.

Need Heavy-Duty Erosion Control?
Grassworx specialises in hydromulching, drill seeding, and soil amelioration for infrastructure. Contact Grassworx today for a consultation or a free quote.