In the long tradition of infrastructure built to carry human ambition across difficult terrain, the Hokkaido Shinkansen extension now faces a quieter reckoning: not the challenge of mountains or weather, but of trust. A construction consortium led by Tekken was found to have falsified concrete quality tests three times over six months while building the Futatsumori Tunnel, a passage meant to one day carry passengers safely between Hokuto and Sapporo. The fraud was exposed not by internal oversight, but by the chance presence of a government observer — a reminder that accountability often depen
Hokkaido Shinkansen contractor caught manipulating concrete quality tests
Potential safety risk to future passengers if concrete structural integrity is compromised, though no casualties reported at this stage.