ADAC is a new standardised way of processing and presenting as-constructed survey information. It involves a more rigorous and in-depth approach to the as-constructed location of inground and surface infrastructure as well as the presentation of the associated data.
- Each authority has its own version of ADAC – this will determine what is required to ensure compliance.
- ADAC format requires a higher level of organisation and commitment from principal contractors to ensure that no infrastructure is backfilled or laid over until all measurements are completed.
- A greater quantity of work is required including field time (generally multiple short visits are required to ensure the continuation of site works), data management and coordination to finalise submissions.
- Must be located to a SUI Quality Level A (QL-A) standard – aka direct measurement.
- Eliminates the need for guesswork (“it’s about here and 400-500 deep.”)
- Standard required deliverables are .XML file and accompanying PDF from 12D. (This is designed to be in replacement of the old redline mark-ups and plans not in addition to).
- The surveyor’s responsibility is limited to spatial information and the type of materials where possible. Finalisation as per the SEQ code for the material and pipe details (not spatial related) lies with the engineer.
ADAC is designed to:
- Help ensure infrastructure, particularly SUI is located to a greater degree of accuracy to avoid future issues with infrastructure strikes.
- Be used as a BIM/GIS database for asset management purposes with relevant authorities.
*Ability to provide ADAC (Asset Design and As-Constructed) compliant XML files. We can also offer data conversion services to assist others in the creation of ADAC files from historical and generic field data.
Underground utility location and mapping is used to confirm existing utility locations and search for those unknown by using a range of techniques including (but not limited to), cable location, hydro excavation, surveying and laser scanning.
Before starting a project, it is important to identify what utilities are in the ground, their condition, and if they will impact on the proposed works.
- Eliminate risks associated with working in the vicinity of underground services, structures, cables & utilities
- Provides confidence to plan, design & manage projects
- Mitigate potential conflicts in design
- Avoid costly delays in construction
- CAD & BIM (Building Information Modelling) 3D Modelling services
- Deliverables are available in AutoCAD, Navisworks, 12d, Revit and interactive PDF
Bennett + Bennett provide Quality Level A or B subsurface utility locating depending on the level of accuracy required for your planning and due diligence.
- Quality Level A (QL-A) most accurate – Includes exposing subsurface utilities to provide information on the vertical and horizontal positions of underground utilities along with type, material, condition, size and other relevant characteristics. (includes the use of non-invasive hydro-excavation or hand digging areas)
- Quality Level B (QL-B) – A cost effective method which involves the use of surface geo-physical equipment such as electromagnetic field (EMF) locating and ground penetrating radar (GPR) to confirm existence and position of services from above the ground without physically exposing services.
*Bennett + Bennett engage and work collaboratively with the cable locator and/or vacuum excavator crews to undertake the underground service location
Dilapidation surveys or building condition reports are provided as a formal report which includes detailed photographs and video as digital evidence, and a written component.
Works including building construction, high-rise development, infrastructure projects, road works, demolitions and excavations can sometimes result in defects appearing in adjoining structures. The resulting damage can be expensive to repair and often difficult to prove how it has occurred, and who is at fault. Failure to undertake pre and post dilapidation surveys can leave a project open to litigation claims and timely completion delays.
Have you read?
3 reasons why getting a dilapidation survey is essential
How a dilapidation survey could save your project from compensation or rectification works.