b'DUDLEY STREET KEY ELEMENTS Design challenged by the lack of(MELBOURNE) RAIL OVERPASS as-built drawings for the existing structures provided significant Builder Macfab Engineering. uncertainties for the construction of this rail bridge. Span arrangement, JBDScopeConstruction detailing and 3D modelling ofgeotechnical conditions and budgeta bridge structure. constraints as well as minimal road Overview closure of Dudley Street during The Regional Rail Link (RRL) project wasconstruction added difficulty. With all a $4.3 billion rail line upgrade undertaken in 2012. shutdown projects, the fitting of all A new rail bridge over Dudley Street (a six-lanecomponents is critical the first and only dual carriageway) and an underground servicetime. There are no onsite acceptable tunnel adjacent to the street was required. remedial options with these projects, requiring the team be accurate, flexible and to use their technical expertise.The long, ~1800mm deep welded beams detailed by JBD.8jbdgroup.com.au'