IDI Members
Japan Bridge & Structure Institute, Inc. (JBSI) was founded in 1962 when Japan constructed its first expressways, the Meishin and Tomei, as well as the Shinkansen Bullet Train Railway.
The main objective of JBSI at that time was to plan and design the bridges and structures of these expressways and railways. Since then, with the remarkable economic growth of Japan, JBSI also has been growing in order to undertake surveys, planning, design and construction supervision of bridges and structures for governmental and other domestic clients with an increased demand for public works. JBSI broadened its fields of specialization even further to cover all steel and prestressed concrete structures as well as planning and design of roads and buildings. Until now, JBSI has been honoured to receive the Japan Civil Engineering Association's Tanaka Award several times for outstanding engineering designs. We believe that among the many engineering consultants in our fields, JBSI, with its widely recognized executive personnel and experienced staff, is one of the foremost engineering firms in Japan.
As for overseas consulting, JBSI has undertaken several Japan International Cooperation Agency Projects in developing countries as well as many other studies and design independently or in association with other Japanese engineering partners. Also in recent years, JBSI has actively jointed with foreign consultants (in England, USA Sri-lanka, Vietnam, etc.) on projects we feel will contribute to the socioeconomic welfare of the world and our firm is always looking for such opportunities to cooperate.
Fields of Activity
・Transport Consultation
・Road Planning and Design
・Bridge Planning and Design
・Structural Planning and Design
・Railway Planning and Design
・Construction Supervision
・Technical Research and Development
・Technical Consultation
・Asset Management of Bridges and Structures
・Bridge Maintenance Including Inspection, Repair Design and other Monitoring
Scope of Services
・Project Management and Supervision
・Pre-Feasibility Studies
・Feasibility Studies
・Transportation Planning
・Engineering Preliminary and Detail Design
・Planning Studies
・Cost Estimation
・Testing and Evaluation
・Training of Civil and Structural Engineers
・Prolong Life Repair Plan of Existing Bridges and Structures
Head Office
NOF Kanda Iwamotocho Building 3F, 8-16, Iwamotocho 3-chome, Chiyoda-ku, Tokyo 101-0032, Japan
Telephone: +81-3-5825-5030
Facsimile: +81-3-5825-0633
Home Page:
Overseas Office
Hanoi, Jakarta, Colombo

Major Projects
Field Country Project
Highway & Bridge Bangladesh Reconstruction of Five Bridges on Dhaka-Chittagong Highway
Jamuna River Bridge Construction Project,
length = 4,747m, Used together with road and railway
Indonesia The Tanjung Priok Port Access Project Phase 1 JBIC IP No.529
malaysia Study on the Standardization of Bridge Design
Taiwan Yuan Shang Bridge Widening Project
Rainbow Bridge
Sri Lanka Southern Transport Development Project
Sri Lanka-Japan Friendship Bridge Widening Project
Reconstruction of Victoria Bridge, Length = 228m
          Colombo-Katunayake Expressway, Length = 31.4km  
Data Collection Survey on Primary Bridges on National Roads and Maintenance System of Bridges
Vietnam The New National Highway No.3 and Regional Road
Network Construction Project Selection Ha Noi-Thai Nguyen
Bai Chay Bridge Project SDC
Transport Infrastructure Development Project in Hanoi Phase I DC
          The Second National Highway No.1 Bridge Rehabilitation Project Phase II-3  
Lach Huyen Port Infrastructure Construction Project in Vietnam
Kenya Kilifi Bridge, Length = 420m, Access Road = 4km
          The Project for Reconstruction of Athi Bridge and Ikutha Bridge  
Turkey Seismic Reinforcement for Large Scale Bridges in Istanbul

Sri Lanka - Japan Froendship Bridge

Sri Lanka - Japan Friendship Bridge
Phase U (Sri Lanka)