Announced details
Management, maintenance and repair, inspections and diagnosis, detailed surveys, repair design, repair work and construction supervision for marine bridges in Nagasaki Prefecture, including inter-island bridges with spans exceeding 200 m
The project aims to reduce lifecycle costs, but the specific reduction amount and rate are Not disclosed
Nagasaki Prefecture is the contracting authority, and an SPC led by 長大 was awarded the project. As a member of the SPC, 長大 is responsible for management, inspections and diagnosis, detailed surveys, repair design, construction supervision and related activities.
Nagasaki Prefecture. Islands and peninsulas account for approximately 70% of the prefecture's land area, and it has 1,479 islands. The Nagasaki Prefecture Road Maintenance Division published the results of its open proposal-based selection process.
Head office of 長崎長大橋マネジメント株式会社: East Court Room 203, 5-1 Asahimachi, Nagasaki City
In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.
Geospatial Information Authority of Japan's Digital Japan Basic Map; Nagasaki Prefecture Road Maintenance Division, "Results of the Open Proposal-Based Selection Process for the Nagasaki Prefecture Long-Span Bridge Maintenance Project" (published 24 March 2026)
| Item | Details |
|---|---|
| Names of Products / Services Covered | Nagasaki Prefecture Long-Span Bridge Maintenance Project (Phase 1) |
| Counterparty | Nagasaki Prefecture |
| Counterparty overview | Nagasaki Prefecture. Islands and peninsulas account for approximately 70% of the prefecture's land area, and it has 1,479 islands. The Nagasaki Prefecture Road Maintenance Division published the results of its open proposal-based selection process. |
| Relationship with the Company | Nagasaki Prefecture is the contracting authority, and an SPC led by 長大 was awarded the project. As a member of the SPC, 長大 is responsible for management, inspections and diagnosis, detailed surveys, repair design, construction supervision and related activities. |
| Launch date | July 2026 (the start of the Phase 1 project; the disclosure states that work has already begun) |
| Applicable area | Management, maintenance and repair, inspections and diagnosis, detailed surveys, repair design, repair work and construction supervision for marine bridges in Nagasaki Prefecture, including inter-island bridges with spans exceeding 200 m |
| Location | Head office of 長崎長大橋マネジメント株式会社: East Court Room 203, 5-1 Asahimachi, Nagasaki City |
| Location scale | 7 bridges covered. Phase 1 project period: 5 years (July 2026 to 31 March 2031) |
| Quantitative Effects | The project aims to reduce lifecycle costs, but the specific reduction amount and rate are Not disclosed |
| Source | Geospatial Information Authority of Japan's Digital Japan Basic Map; Nagasaki Prefecture Road Maintenance Division, "Results of the Open Proposal-Based Selection Process for the Nagasaki Prefecture Long-Span Bridge Maintenance Project" (published 24 March 2026) |
Items this document does not state (8)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.Nagasaki Prefecture has numerous inter-island bridges and requires advanced technical expertise and know-how to maintain specialized bridges with no alternative routes. The project uses PFI to achieve efficient and effective maintenance, reduce lifecycle costs and extend the bridges' service lives.