inventor of the macadam road
1770 he went to New York City, entering the counting house of a merchant
uncle; he returned to Scotland with a considerable fortune in 1783. There
he purchased an estate at Sauhrie, Ayrshire. McAdam, who had become a road
trustee in his district, noted that the local highways were in poor
condition. At his own expense he undertook a series of experiments in road
1798 he moved to Falmouth, Cornwall, where he continued his experiments
under a government appointment. He recommended that roads should be raised
above the adjacent ground for good drainage and covered, first with large
rocks, and then with smaller stones, the whole mass to be bound with fine
gravel or slag. In 1815, having been appointed surveyor general of the
Bristol roads, he put his theories into practice. To document his work,
McAdam wrote Remarks on the Present System of Road-Making (1816)
and Practical Essay on the Scientific Repair and Preservation of Roads
the result of a parliamentary inquiry in 1823 into the whole question of
road making, his views were adopted by the public authorities, and in 1827
he was appointed Surveyor General of Metropolitan Roads in Great Britain.
Macadamization of roads did much to facilitate travel and communication.
The process was quickly adopted in other countries, notably the United
above excerpted from the Encyclopedia
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