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Design Specifications

The Association promotes the use of guidelines to assist in the design and construction of roading networks and other infrastructure so that it can cope with the travel of overdimension and overweight loads.

In general the dimension requirements for an overdimension route are a clear width of 11.5m and a height of 6.5m. This will ensure that 97% of all overdimension loads will be able to utilise a route with these dimensions.

The current edition of the Specifications is Version 7 released in November 2017.

Download the Specifications (PDF)

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