JR Hokkaido and JR East have announced that due to maintenance work on the Seikan Tunnel and other sections shared with the Hokkaido Shinkansen, some trains will be suspended every Sunday from May 11 to July 27.
The ‘Hayabusa 39’ service departing from Tokyo Station at 7:20 PM will be suspended between Shin-Aomori and Shin-Hakodate-Hokuto stations, terminating at Shin-Aomori Station. The ‘Hayate 100’ service, which departs from Shin-Hakodate-Hokuto Station at 9:57 PM, will be suspended.
Replacing the overhead catenary lines, which are approximately 1,500 meters long each, requires about 6 continuous hours of work including the time it takes to travel back and forth from the maintenance base to the work site. By allocating significantly more time to maintenance work, more reliable operations can be ensured. The Seikan Tunnel has a total of about 250 trollies, auxiliary suspension cables, and suspension cables that have been used for over 30 years, spanning a total length of about 380 kilometers.
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