NEXCO to remove ceiling tiles in nine of its Japan expressway tunnels

Central Nippon Expressway Co (NEXCO) East Japan is to remove ceiling tiles in nine of its expressway tunnels in Japan, less than a year after nine people died following the collapse of Sasago tunnel in Yamanashi Prefecture. A company spokesperson has reportedly said that the firm is shutting down the tunnels on the Kan-Etsu Expressway and the Hokuriku Expressway during evenings until July 2013, to enable the removal of the existing tiles. After the Sasago tunnel collapse in December 2012, an emergency inspe
June 3, 2013 Read time: 1 min
Central Nippon Expressway Co (NEXCO) East Japan is to remove ceiling tiles in nine of its expressway tunnels in Japan, less than a year after nine people died following the collapse of Sasago tunnel in Yamanashi Prefecture.

A company spokesperson has reportedly said that the firm is shutting down the tunnels on the Kan-Etsu Expressway and the Hokuriku Expressway during evenings until July 2013, to enable the removal of the existing tiles.

After the Sasago tunnel collapse in December 2012, an emergency inspection of the tunnel’s southbound lane found defects in 670 locations. In around 632 locations, the bolts that fix the ceiling panels to the tunnel were said to be corroded or loose, while there was a crack in the tunnel's concrete ceiling.

Related Content

  • Tuen Mun to Chek Lap Kok tunnel connection
    January 24, 2017
    It is not only the scale of the Tuen Mun to Chek Lap Kok tunnel that impressed delegates but the number of novel technologies that Dragages Hong Kong, a Bouygues Construction subsidiary, is employing on this project The 4.6 km tunnel running 60m below sea level is part of a strategic new route linking Hong Kong’s airport on Lantau Island and the New Territories.
    Read More
  • Tuen Mun to Chek Lap Kok Tunnel project
    December 22, 2016
    It is not only the scale of the Tuen Mun to Chek Lap Kok tunnel that impressed delegates but the number of novel technologies that Dragages Hong Kong, a Bouygues Construction subsidiary, is employing on this project. The 4.6 km tunnel running 60m below sea level is part of a strategic new route linking Hong Kong’s airport on Lantau Island and the New Territories. Dragage’s contract includes reclamation of 16.5-hectares at the tunnel’s north end to accommodate the north portal and a ventilation building. Wo
    Read More
  • More on the Newmarket Viaduct replacement
    June 15, 2012
    When it was completed in 1965 – just six years after the Auckland Harbour Bridge – the six-lane Newmarket Viaduct with its tall, slender piers was something of an engineering wonder, the first of its kind in the Southern Hemisphere. Forty years on it had become a much-maligned contributor to Auckland’s chronic traffic congestion, too weak seismically to withstand the heaviest loaded trucks let alone a severe earthquake, so narrow in the shoulders that any accident stopped traffic flow and made it difficult
    Read More
  • India’s longest road tunnel continues apace with Atlas Copco support
    May 20, 2014
    The challenging construction of India’s largest road tunnel is part of a vital US$500 million project aiming to connect the isolated northern state of Jammu and Kashmir with the rest of the vast and highly populated country. Guy Woodford reports Travelling on National Highway 1A (NH 1A) in northern India should be the dictionary definition of ordeal. The single lane, narrow and winding road crosses some of the steepest, most treacherous terrain on the planet. The arduous route becomes especially difficult t
    Read More

Highlighted Content