Category: Bridges

  • Marton New Plymouth Line [3A]: Waitotara – Normanby 1: Bridges 34, 37 and 41 Not used by road traffic

    When I first drew maps for the MNPL about five years ago (I had just started to use Qgis but I can’t really put a date on it) the NZMS1 maps for the area between Waitotara and Normanby suggested that three bridges around Waitotara and Patea were combined bridges, used by both road and rail…

  • Road/Rail Bridges on the Hokitika/Ross Line [2]

    The second location of a combined bridge is at the Taramakau River as mentioned above, being Bridge 13, between 14 and 15 km. It is lattice girder steel with six spans each 121 feet long (total length around 220 metres). It is founded in the bed on steel cylinders which must suggest a heavy flow…

  • Road/Rail Bridges on the Hokitika / Ross Line

    Road/rail bridges in New Zealand have been and are of three types:  Single shared deck. The most common type but also the most difficult to operate as it disrupts train and traffic equally when one mode must have exclusive use. Bridges either had bridgekeepers with gates at each end to close off the traffic, or…

  • Road/Rail Bridges on the Hokitika/Ross Line [1]

    Road/rail bridges in New Zealand have been and are of three types:  Single shared deck. The most common type but also the most difficult to operate as it disrupts train and traffic equally when one mode must have exclusive use. Bridges either had bridgekeepers with gates at each end to close off the traffic, or…