TDC provides a complete service in construction investment, particularly for transport works, technical infrastructure and rural development – from survey, project preparation and design to design verification, supervision and quality inspection.

The services below are carried out in every one of the Company’s fields of activity, under an ISO 9001:2015 quality management system.

  1. Topographic Survey

    Flycam, GPS RTK

    Construction surveys of topography and hydrology; topographic mapping at scales of 1:500, 1:1000, 1:2000 and 1:5000 using Flycam and GPS RTK technology.

    Unit in charge: Topographic Survey and Construction Supervision Enterprise

  2. Geological Survey

    Drilling, in-situ testing

    Engineering geological surveys for construction: survey drilling and in-situ testing for design.

    Unit in charge: Geological Survey and Construction Inspection Enterprise

  3. Investment Policy Proposal

    Pre-feasibility study reports

    Preparation of pre-feasibility study reports for construction investment, as the basis for the investment policy proposal.

  4. Investment Project Preparation

    Feasibility study reports

    Preparation of construction investment projects (feasibility study reports, investment reports); construction investment project management; preparation of bidding documents.

  5. Technical Design – Construction Drawing Design

    Cost estimates, BIM models

    Technical design, construction drawings and cost estimates for roads, bridges, ports, and infrastructure of industrial parks and urban areas; BIM application (Civil 3D, Revit, InfraWorks, Navisworks); electrical design of power lines and substations up to 35 kV.

    Unit in charge: The Design Enterprises

  6. Verification Consulting

    Design and cost estimate verification

    Verification and appraisal of investment projects, basic design, technical design for construction, and total cost estimates of works.

    Unit in charge: The Design Enterprises

  7. Construction Supervision Consulting

    Supervision of construction works

    Construction supervision of works and technical supervision of construction; management of projects invested in by the Company.

    Unit in charge: Topographic Survey and Construction Supervision Enterprise Projects carried out →

  8. Quality Inspection

    LAS-XD laboratory

    Testing and inspection of the quality of materials and structures at the LAS-XD HCM.013 construction testing laboratory.

    Unit in charge: Geological Survey and Construction Inspection Enterprise Projects carried out →