Eunony Bridge Replacement

BMD Constructions was engaged as principal contractor for the design and construct project which ensured the new bridge would sit above the 100-year flood level and the structure would be strengthened to a rating of SM1600 and be 50% wider than the original bridge.

In the early tender stages, BMD proposed an alternate design which provided the client with cost and time savings. The solution involved undertaking a full closure to allow the entire existing bridge deck to be demolished down to the headstocks which were then strengthened and rehabilitated prior to the placement of new planks, pouring of a unique cantilever deck and placement of new bridge rails. Innovative temporary works designs including counterweighted platform systems and deck cantilever formwork allowed for easy and modular access to the works from above, with the overall design removing the requirement for construction to occur in a narrow road corridor adjacent to live traffic. The project team also donated 95% of the concrete material from the demolished structure to local businesses for reuse.

No contamination of the Murrumbidgee River occurred as a result of an innovative debris catching system implemented by BMD. The slinging geofabric/tarp/wire mesh structure was attached beneath each span to catch any falling concrete or concrete slurry. This approach negated the need for boats or a barge in the waterway, and instead utilised the flow of the river to transport ropes under the bridge used to secure the capture structure. The system successfully achieved environmental outcomes while also providing an additional safety measure with the system acting as further fall protection.