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Ord River Bridge is located 3,170km by road to the North
of Perth. It is a 240m long concrete and steel bridge
with 11 concrete blade piers ranging in height from 5m
to a maximum height of 9.5m, which are located on top
of 15m x 3m x 1.4m pier foundations anchored to the river
bedrock.
The abutments at each end were supported off 800mm diameter
concrete columns 8m high, which were formed using RMD
Australia's Supertube. The formwork design and supply
criteria were based on the logistics of transporting 90t
of equipment to this remote site.
Pier shutter formwork utilizing RMD plywood, Alform Beam
and Super Slim Soldier equipment was designed to enable
the client to either add on or dismantle sections of shutters
to facilitate the varying pier heights. This system was
far more functional than steel forms.
The bridge deck is supported by 5 rows
of 1,000mm deep welded steel beams spanning 21 meters
from pier to pier. Total volume of concrete used is approximately
3,000m³ and the total contract time was 28 weeks.
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