Contract Resources Industrial Coatings – East Coast have just completed a major rail bridge over the Herbert River, near Ingham in Far North Queensland, Australia, for QR Network.
The bridge, constructed in the 1930s, consists of eight steel truss spans, each 25m long, and supported on concrete piers. The single track bridge is part of the North Coast network linking Townsville and Cairns, and had to remain open for the duration of the project.
The bridge was last repainted approximately twenty five years ago with lead based coatings now recognised to be a health and environmental hazard.
This presented serious challenges as the line is single track, and minimum clearances for trains had to be observed; necessitating accurate scaffold design and erection, and first class encapsulation to contain blast debris, paint, and dust emissions. Contract Resources’ solution included using “UniMesh” protection sheeting on the inside face of the encapsulation to provide a physical barrier between personnel and trains.
The full article can be found in Catalyst 12.