[JP] Maglev Bridge Construction Progressing in Yamanashi Prefecture
Posted: 24. Aug 2025, 21:49
Bridge Construction Progressing in Yamanashi Prefecture
JR Central recently opened up construction sites in Yamanashi Prefecture to the media, showcasing progress on two major river-spanning bridges for the Linear Chuo Shinkansen: the Kamunashi River Bridge (754m, the longest on the Shinagawa–Nagoya route) and the Jonan River Bridge (225m). These structures are part of a 27.1 km above-ground section of the maglev line, which otherwise runs mostly through deep tunnels.
The Jonan River Bridge’s top platform—about 18m high—offers sweeping views of the Kofu Basin. The elevated viaduct, 16m wide, will carry maglev trains in both directions at speeds of up to 500 km/h. Though the guideway hasn’t been installed yet, rebar placements show where it will go. Residents invited to tour the site expressed excitement about the future line.
Construction of the Kamunashi River Bridge also continues, with massive piers already in place. Despite relatively narrow rivers, the scale and strength of these bridges are impressive, with reinforced structures designed to withstand maglev speeds. The combined construction period for both bridges runs from October 2020 to August 2026—a one-year delay from the original schedule, due in part to delays in Shizuoka.
Currently, foundation work is complete and superstructure construction is about 50% done. Due to river regulations, work can only occur from November to May, and is paused during holidays, adding to time constraints.
Info based on Yahoo News Japan: https://news.yahoo.co.jp/articles/a5e58 ... 78e?page=1 Acessed 2025-08-24
JR Central recently opened up construction sites in Yamanashi Prefecture to the media, showcasing progress on two major river-spanning bridges for the Linear Chuo Shinkansen: the Kamunashi River Bridge (754m, the longest on the Shinagawa–Nagoya route) and the Jonan River Bridge (225m). These structures are part of a 27.1 km above-ground section of the maglev line, which otherwise runs mostly through deep tunnels.
The Jonan River Bridge’s top platform—about 18m high—offers sweeping views of the Kofu Basin. The elevated viaduct, 16m wide, will carry maglev trains in both directions at speeds of up to 500 km/h. Though the guideway hasn’t been installed yet, rebar placements show where it will go. Residents invited to tour the site expressed excitement about the future line.
Construction of the Kamunashi River Bridge also continues, with massive piers already in place. Despite relatively narrow rivers, the scale and strength of these bridges are impressive, with reinforced structures designed to withstand maglev speeds. The combined construction period for both bridges runs from October 2020 to August 2026—a one-year delay from the original schedule, due in part to delays in Shizuoka.
Currently, foundation work is complete and superstructure construction is about 50% done. Due to river regulations, work can only occur from November to May, and is paused during holidays, adding to time constraints.
Info based on Yahoo News Japan: https://news.yahoo.co.jp/articles/a5e58 ... 78e?page=1 Acessed 2025-08-24