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<p>In 1923, following a visit to the USA, Highways Commissioner Mr D.V. Fleming obtained a bituminous concrete plant from Warren Bros. Boston, USA.  This was constructed at Pooraka and immediately used for surfacing Main North Road at Gepps Cross.
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See "Highways (Department of Road Transport, South Australia, 1991)" by Peter Donovan.</div>
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State Government Photographer</div>
The History Trust of South Australian,  South Australian Government <br> Photo <a rel="nofollow" class="external autonumber" href="http://data.history.sa.gov.au/sagpc/media/preview/11004?maxsize=1000">[1]</a> <br> Object record <a rel="nofollow" class="external autonumber" href="http://data.history.sa.gov.au/sagpc/getitem/11004">[2]</a>