b'SMARTER, SHARPERCASE STUDY NO. 2 This line carries 4.8% of NSW total rail passenger travel. Brefni was named as one of Australias 10 Most Innovative Companies by the AFR for achieving this planning feat. The Lambton Road Overbridge demolition and refurbishment works were completed in Multi-staged live site bridgeclose collaboration with Sydney Trains and SMEC. Brefni delivered a bridge build over live demolition and build whichrailway lines, using an alternative methodology so that only two mainline tracks needed involved considerableto be closed instead of the anticipated four. planning to deliver within 48The scope included: partial demolition of a century-old overbridge structure; dismantling dedicated constructionand reinstating the existing overhead wiring system; removal of steel girders and periods.replacement with precast concrete elements; bearing replacement works to other areas critically affected by corrosion; milling, bearing replacement works, resurfacing and waterproofing of existing asphalt bridge deck; removal of outside rail span steel girders Client: Sydney Trainsand replacement with precast concrete elements; and milling and resurfacing of the existing asphalt bridge deck. Value: $6 million Separableportions/multi-stagedtechnicalproject Duration: 12 months (non-possessionAs demolition and replacement works were located on spans 1 and 2 over the rail line, and possession works)separable portions 1 and 2 had to be undertaken during planned possession outages. This scope was extremely technical, requiring the following elements of critical planning and construction: Relevant featuresA comprehensive and independently verified demolition plan to enable theTECHNICAL BRIDGE PROJECTsafe temporary support and release of the existing redundant steel girdersand associated brick arch/slab;INCLUDING DEMOLITION Strategic concrete cutting and coring works in order to isolate the section ofbridge for removal;MULTI-STAGED LIVE SITE Extensive traffic management to maintain and control vehicle accessacross Lambton Road (where possible), while ensuring that all third partiesMODULAR/PRECASTwere kept safe from the works;CONCRETE Provision of safe working access that remained appropriate and suitable for all crews throughout all phases of demolition and construction;LTI FREE: SAFELY DELIVERED BREFNI|11'