3D BIM Underground Assets involves the generation and management of digital 3D representation of underground assets physical true shape, location and their functional characteristics. Its process functions incorporates four phases of Planning, Design, Construct and Asset Management. Accurate information is the most valuable commodity to have as part of this process. It is during the Construct phase that provides the best opportunity to obtain the most accurate information. There are a number of Transport and Main Roads enabling documents, that if specified in the contract documents, they form part of the contract. These can include technical specification documents that prescribe the installation requirements of underground road lighting, traffic signalisation, drainage and retaining structures. Other TMR enabling documents include Quality Assurance for Conformance and As Constructed Survey as well as a protocol document that specifies the technical requirements governing installation of third party public utilities. All of these enabling documents have wording or specific clauses added that make reference to the TMR Surveying Standards February 2016 that specifies the requirements for surveyor competency, setting out, conformance, as constructed survey and deliverables for newly installed or relocated underground assets during construction works.