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Hokuriku Shinkansen Tsuruga Extension Project Vol.3 ~ Kakehashigawa Bridge ~

The Kakehashi River is a first-class river that originates at Suzugatake in Komatsu City, flows north through the mountains, enters the plains, then changes direction to the west before flowing into the Sea of Japan. The downstream area is surrounded by the Komatsu city area, making it a valuable open space and a place of relaxation for local residents, who go for walks, fishing, boating, etc. It is also in this downstream section that the Hokuriku Shinkansen crosses the Kakehashi River just before Komatsu Station, and because the river is wide, bridge piers must be built across the river channel. As well as flood control, it became more important than anything to reach an agreement with the river manager, who is promoting the development and conservation of the river environment that is loved by local residents.

Integrated Development Project of SAGA Sunrise Park + Eiko Bridge + Saga City Cultural Center - West Square

The National Athletic Meet, which has long been affectionately known as the KOKUTAI (National Sports), will be renamed the "National Sports Festival" and the first tournament will be held in Saga in October 2024. The shift from "physical education to sports" was also reflected in the concept of venue development, and the venue was required to be used as a base for everyday sports and health that would be popular in the local area for a long time even after the tournament ended. To achieve this, a total design that looks to the future is essential, without being bound by distinctions between prefecture and city, architecture and civil engineering, or hardware and software. Ryuji KAMIDE of the Urban Design Sec. of the Osaka Social Innovation Dept., who was in charge of the exterior design of SAGA Sunrise Park and the Cultural Center-West Square, and Shuichi NONAKA of the Structure Sec. of the Kyushu Transportation Infrastructure Dept., who was mainly responsible for the design of Eiko Bridge, looked back on the initiative.

Sanjo City's Comprehensive Private Sector Outsourcing Project

Sanjo City, which has been actively promoting comprehensive private sector outsourcing for infrastructure maintenance and management, began Phase III (5-year) of outsourcing in the spring of 2024. PACIFIC CONSULTANTS has been participating as a member of the joint venture (JV) that will receive comprehensive outsourcing since Phase II (April 2019 - March 2024), which precedes this. This is the first time for a construction consultant in the country to do so. Why did the local construction companies join a mainly made up JV, and what kind of results produced? Nobutaka INAMITSU, General Manager of the Spatial Creation Sect. of Infrastructure Management Dept., Transportation Infrastructure Div. who is at the center of the initiative, along with Ryo NAKAI and Masahiro MATSUOKA from the same section, explain the story.

What is Comprehensive Entrustment of Infrastructure to Private Sector?

How to protect infrastructure such as roads with limited personnel and budgets is a major issue for local governments. One promising method that is garnering attention is "Comprehensive Entrustment to Private Sector." We spoke with three people from PACIFIC CONSULTANTS who have pioneered this field and have achieved many successes: Nobutaka INAMITSU of the Spatial Creation Section, Infrastructure Management Dept., Transportation Infrastructure Div.; Kazuya MURAMATSU of the Infrastructure PPP Section, PPP Management Dept., Social Innovation Div.; and Shigeto TANAKA of the Infrastructure Management Section, Transportation Infrastructure Dept., Osaka Headquarters.

Hokuriku Shinkansen Tsuruga Extension Project Vol.1 ~ Okura Yoza Bridge ~

The Shinkansen, which travels at a speed of 260km per hour, requires extremely high precision in its bridge piers. The allowable deflection is only a few millimeters. This is why engineers who aspire to be civil engineers think, "I want to work on the Shinkansen someday." Furthermore, the Okura Yoza Bridge had to be built on soft ground with a maximum pier's height of about 30m. This was one of the most difficult projects in the long history of Shinkansen construction.

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