de Witt Consulting were engaged by Laing O’Rourke (LOR) to provide the survey support subcontract for the Newcastle Transport Interchange Project. de Witt supplied full time survey resources to the project. Providing services such as control installation, set out of earthworks, drainage structures, work on roads, rail and rail infrastructure, as well as surveying and documenting the position of existing underground assets. Initially location and documentation of the underground assets existing prior to construction was undertaken by de Witt on behalf of LOR similarly as new services were installed these were documented by our team to facilitate the final design process and to fulfil Sydney Trains Detailed Site Survey (DSS) requirements.