Civil Engineering

Developing safe and secure infrastructure through advanced technologies

We build infrastructure essential to people's lives, such as tunnels, bridges, dams, riverbanks, railroads, and expressways. In doing so, we contribute to making an abundant society and ensuring safety and security for everyone.

Recently, this business domain has widened to cover maintenance and upgrades, including repairs, and we have been actively involved in extending the life and functionality of existing infrastructure. We have also been leveraging cutting edge ICT such as 3D measurement data and unmanned construction machinery to make steady improvements in construction work quality and productivity.

Net Sales
JPY414.2bn
Operating Income
JPY45.1bn

Net Sales Transition (FY ended March 31)

  • 2020

    JPY 414.2 bn

  • 2019

    JPY 414.9 bn

  • 2018

    JPY 410.2 bn

(Figure are as of March 31, 2021)

Business Policy

Providing Unique Obayashi Value while Adapting to a Changing Business Environment

The division is developing technology to make onsite construction work autonomous and more efficient, while ensuring everything is based on safety and quality. Our aim is to further increase productivity while adapting to changes in the business environment. Employees involved with the civil engineering business in Japan and overseas, including those at Group companies, are teaming up to reform work styles. We are also working in collaboration with our suppliers to be more competitive. Through efforts like these, we will provide unique Obayashi value to society and customers.

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Opportunities in Business Environment

  • Progress on large projects, including the 2025 World Exposition, integrated resort facilities, redevelopment in urban centers
  • Growing market for maintenance and renovation of infrastructure built in Japan's high-growth period
  • A constant need for clean energy including offshore wind power farms
  • Increasing demand to build infrastructure in newly emerging economies as they develop, overseas infrastructure projects driven by public-private partnerships

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Risks and Responses

Risks Responses
Impact on earnings and business evaluation if there are major safety or quality incidents Fully implement safety and quality awareness-raising and control policies
Lack of production capacity as changing population structures leave fewer skilled workers Establish next-generation construction production systems based on BIM/CIM and increase productivity by promoting autonomous operation of construction machinery
Social demands to correct problems in working environments, such as long work hours Increase efficiency by transforming business processes and using ICT
Business interruptions due to shortages of skilled workers, materials, or equipment during a natural disaster Conduct trainings, including training on securing skilled worker, material, and equipment procurement channels in line with BCP during disasters

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Business Strategy Based on Medium-Term Business Plan

  • Strategically acquire orders to construct, renew, and extend the life of infrastructure that contributes to the safety and security of the public as well as Japan's economic development
  • Work to acquire orders for energy-related projects that respond to social and environmental change
  • Expand design-build projects using labor-saving technology and ICT, and further increase productivity and construction safety using IoT and AI
  • Diversify earnings base by expanding into upstream and downstream sectors in the civil engineering business
  • Secure employees and skilled workers by improving the working environment on construction sites and secure production capacity by supporting their development and so forth
  • Stabilize business earnings by promoting business strategies tailored to regional characteristics in overseas business and strengthening coordination between Japan and overseas

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Specific Measures Based on Business Strategy and Outcomes

  • Develop bridge slab replacement technologies for laborsaving, "Submarine Slicer™" and "Flange Blaster™"
  • Build a Self Elevating Platform (SEP) for construction of offshore wind power farm
  • Develop Obayashi-Dam Innovative Construction Technology (ODICT™), computer-aided dam construction technology, and apply it at dam construction sites
  • Develop shield 3D linear control system as basis for "OGENTS/DRIVE™" shield autonomous driving technology
  • Increase productivity by actively implementing ICT tools
  • Foster improvement awareness by establishing new in-house work style reform commendation system
  • Support expansion in number of skilled workers, by offering hands-on occupational experience and tours of construction sites
  • Support career formation for skilled workers by promoting Construction Career Up System
  • Train local overseas employees in Japan
  • Enhance information-gathering capacity and procurement competitiveness by collaborating and strengthening relationships with local partners and suppliers at overseas bases

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