Grand Canal Quay

At Grand Canal Quay, Roadstone supported the delivery of a bespoke stormwater treatment solution to protect the local watercourse from sediments, debris, hydrocarbons, heavy metals and nutrients. An Up-Flo™ Filter was designed to fit within an existing manhole, providing high-performance treatment while working within the constraints of the site.

Up-Flo™ Filter
The Challenge

Protection of local watercourse from discharge water containing:

  • Fine and coarse sediments
  • Floatable debris (trash, litter, plastics)
  • Liquid hydrocarbons (oils) and sediment-bound hydrocarbons
  • Sediment-bound heavy metals
  • Sediment-bound nutrients
  • Using an existing manhole
The Solution

The Up-Flo™ Filter is an advanced stormwater treatment system that combines sedimentation and screening with filtration to deliver exceptional surface water pollution removal.

  • Verified to remove 80% TSS but with demonstrated removal rates up to 98%.
  • Flexible, high-performance treatment solution that can be customised to meet specific requirements.
  • Designed with efficiency, longevity and upkeep in mind.

This specific unit was a bespoke design with a modified frame to suite the chamber. The solution was to provide the unit in kit form for installation on site. Installation drawings were provided and we offered an onsite inspection post installation.

The Result:

By installing a bespoke Up-Flo™ Filter within the existing manhole structure, the project delivered a highly effective stormwater treatment solution without the need for major civil works. The system provides exceptional removal of sediments, hydrocarbons, litter and other pollutants, helping to protect the receiving watercourse and meet environmental requirements. Through close collaboration between all stakeholders and a tailored design approach, the unit was successfully adapted to the site constraints, ensuring efficient installation, reliable long-term performance and a cost-effective outcome for the client.

Lessons Learned

Lessons Learned

Collaborative Design Review - Multiple stakeholder meetings ensured the correct Hydro-Brake size was selected for the site-specific drainage conditions.

Accurate Site Measurements - Detailed onsite measurements ensured the bespoke unit and frame were manufactured to fit the existing chamber correctly.

Effective Installation Coordination - Roadstone provided all drawings, performance data, installation guidance and delivery requirements to support a successful installation.

Stakeholders

Stakeholders

Consulting Engineer - Fearon O'Neill Rooney 

Main Contractor - John Sisk & Son