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This road was completed in 1823, using McAdam's road techniques, except that the finished road was compacted with a cast iron roller instead of relying on road traffic for compaction. [15] The second American road built using McAdam principles was the Cumberland Road which was 73 miles (117 km) long and was completed in 1830 after five years of ...
John Loudon McAdam, 1830, National Gallery, London. John Loudon McAdam (23 September 1756 [1] – 26 November 1836) was a Scottish civil engineer and road-builder. He invented a new process, "macadamisation", for building roads with a smooth hard surface, using controlled materials of mixed particle size and predetermined structure, that would be more durable and less muddy than soil-based tracks.
Tarmacadam is a concrete road surfacing material made by combining tar and macadam (crushed stone and sand), patented by Welsh inventor Edgar Purnell Hooley in 1902. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces invented by Scottish engineer John Loudon McAdam in the early 19th century.
Construction of the first macadamized road in the United States (1823). In the foreground, workers are breaking stones "so as not to exceed 6 ounces in weight or to pass a two-inch ring". [32] Unlike Telford and other road builders, McAdam laid his roads as level as possible.
The original Indian footpath was macadamized and became a toll road known as Bethlehem Pike. In Bucks County, the pike passed through Sellersville, Hilltown, East Rockhill, Haycock, Springfield ...
At Winchester, the northern end of the Valley Pike, another historic trail, turnpike and toll road pathway steeped in history, intersected US 50 and several other important older roads. (The Valley Pike ran up the Shenandoah Valley southward and was operated in its later years by future Virginia governor and U.S. Senator Harry Flood Byrd before ...
Tarmacadam, a mainly historical tar-based material for macadamising road surfaces, patented in 1902; Asphalt concrete, a macadamising material using asphalt instead of tar which has largely superseded tarmacadam; Tarmac colloquial term often applied to any paved surface of an airport, regardless of material, including the Airport apron; Taxiway ...
A dirt road or track is a type of unpaved road not paved with asphalt, ... Improved unpaved roads include gravel roads and macadamized roads. [citation needed]