NIMT Bridge Replacement Project

KiwiRail is upgrading the bridges on the rail network to ensure the infrastructure is performing at its optimum so that freight trains can deliver faster and at maximum capacity.

Rangiriri

 

We are replacing Bridges 279, 280, 281 and 282 on the NIMT (North Island Main Trunk) between Hamilton and Auckland with some onsite enabling works due to commence in June 2012.

The four bridges, are over 100 years old and are nearing the end of their serviceable life. All bridges are on private farmland.

The proposed design is a concrete ballast deck which is a modern and durable structure.

Bridge 279 and Bridge 280

40m long with 7 steel spans and 8 timber piers and crosses Te Onetea Stream. The replacement of bridges 279 and 280 means the boat ramp on Te Onetea Stream has to be closed for safety reason while the work is completed. Alternative access to Lake Waikere is available at Ruahine Road. To see information about this please click here.

Bridge 281

30m long with 3 steel spans and 4 timber piers.

Bridge 282

18m long with 3 steel spans and 4 timber piers.

 

By renewing the assets, we aim to reduce future operational and maintenance costs for the bridges and remove the risk of temporary speed restrictions.

The bridges are located within a critical freight route.  The replacement of the bridges will support freight growth by allowing an increase in axel load and speed, resulting in the faster delivery of more freight.

If you have any questions about the project please email: MBR1.NIMT@kiwirail.co.nz