Ord River Diversion Dam Bridge Detailed Inspection
Comprehensive inspection of 20-span prestressed concrete T-beam bridge on dam structure with lift-out beams for weir gate maintenance access.
Kimberley, WA
Main Roads WA
This particular project was carried out by MRWA by staff members now employed by BG&E. The Ord River Diversion Dam Bridge No. 1242 is a concrete dam structure supporting a bridge crossing the Ord River in the Kimberley region of Western Australia, with ownership and operation split between MRWA and Water Corporation.
The bridge deck consists of 20 simply supported spans of precast prestressed concrete T-beams, with lift-out beams to allow access for maintenance to the dam weir gates. Adjacent beams are transversely stressed together with stress bars.
A detailed inspection of the bridge structure (deck, beams, piers, bearings, joints and railing) was carried out to assess maintenance requirements. All lift-out beams were raised to allow close visual inspection. All cracks located and widths were measured using a Wexham microscope and a photographic record of each beam was taken for future reference. Pier elements were accessed by boat for close visual inspection.
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