Water, Wastewater and Stormwater
The Utilities Project involved replacing existing Utilities infrastructure and enabling the construction of a new bridge and surrounding road network in Grafton including the supply and install of;
The project included many constraints with restricted workspaces, interfacing with different work crews and the public, and work-ing around live services. With a wide range of plant, strong safety systems & controls in place, and good communication with Client, Ledonne was able to successfully overcome these constraints.
The Grafton Flood Pump Station Contract involved Supply and Install of:
A significant challenge to the construction of Outlet pipes was to minimise the time that Levee Wall was compromised, and to minimise disturbance to the environmentally protected skink habitat area. Ledonne was able to install approximately 40m under levee wall via pipe jacking method avoiding opening the levee wall and without impacting on habitat area.
The South Grafton Flood Pump Station Project was a Design and Construct Contract to upgrade the existing pump station. Pumping stormwater during heavy rain events out of the levee protected area in South Grafton, the new pumps needed to be capable of pumping 200L/s each and programmed to run as required.