CECAEN Rev 3
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Group 435

Special construction works for civil engineering projects

This macroeconomic category includes all special construction works required for large infrastructure projects, such as dams, tunnels, bridges, highways or hydraulic engineering works. If you are a contractor dealing with deep foundations, drilling, tunnels or reinforced concrete structures for roads or railways, this is your field of activity. Essentially, these are constructions that are not ordinary buildings, but complex civil engineering works.

Included Activities & Applicability

  • ✅ Construction of foundations and piles Drilling and grouting works Construction of tunnels and underground passages Construction of dams
  • ✅ dykes and other hydraulic structures Drainage and irrigation works Assembly of metal structures for heavy construction Demolition works and site preparation for civil engineering projects

Excluded Activities & Restrictions

  • ❌ Construction of residential or non-residential buildings Separate architecture and engineering activities Electrical
  • ❌ sanitary or HVAC installation works Renting of machinery without operator Design of civil engineering structures (only execution) Routine road maintenance works (code 4211) Construction of telecommunications networks (code 4222)

Subordinate Structure

4350 Special construction works for civil engineering projects
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Detailed Analysis & Commercial Insights

CAEN Division 435 - Special Construction Works for Civil Engineering Projects

CAEN Division 435 covers special construction works for civil engineering projects, an essential segment of infrastructure development in Romania. In the context of modernizing the transport network and investments in hydro energy and irrigation, this niche has experienced accelerated dynamics. The main activities include execution of deep foundations and piles, construction of dams, dykes, tunnels and underground passages, as well as drilling and grouting works for ground stabilization. This also includes the assembly of heavy metal structures for bridges and industrial halls, as well as the initiation of civil engineering projects through demolition and site preparation works. This macroeconomic category does not include the construction of residential or commercial buildings, but focuses on the basic infrastructure that supports the national economy.

From an economic perspective, the sector is directly influenced by the state budget and European funds allocated to infrastructure projects. In recent years, Romania has benefited from the Large Infrastructure Operational Program, which financed the construction of highways, bypass roads and bank consolidation works. Contractors specialized in civil engineering works face challenges related to the fluctuation of construction material prices, a shortage of skilled labor, and bureaucracy associated with building permits. Nonetheless, medium-term prospects remain favorable due to the need to rehabilitate existing infrastructure and commitments under the National Recovery and Resilience Plan (PNRR).

For entrepreneurs active in this field, technological adaptation is crucial. The use of modern drilling and concreting equipment, as well as the adoption of efficient execution methods such as the cut-and-cover technique for tunnels, can reduce costs and completion times. Close collaboration with contracting authorities and compliance with quality and safety standards are also determining factors for success in this field. In conclusion, CAEN 435 represents a pillar of sustainable development, offering consistent opportunities for companies that can deliver complex civil engineering works to European standards.