Maryland Route 115
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Maryland Route 115 is a state highway in the U.S. state of Maryland. Known as Muncaster Mill Road, the highway runs 5.83 miles from MD 124 near Redland east to MD 655 at Norbeck. MD 115 is a northwest
View west along MD 115 at Avery Road in Redland
Muncaster Mill Road crossing of Rock Creek
Macadam
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Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam c. 1820, in which crushed stone is placed in shallow, convex layers and compacted thoroughly. A binding layer o
An illustration of the first macadamized road in the United States between Boonsboro and Hagerstown in Maryland in 1823; in the foreground, workers are breaking stones "so as not to exceed 6 ounces [170 g] in weight or to pass a two-inch [5 cm] ring".
Laying Telford paving in Aspinwall, Pennsylvania, in 1908
John Loudon McAdam
A macadam road in Nicolaus, California, c. 1850s