1) Road infrastructure
Found on
https://www.crosswordclues.com/clue/plank-road
A plank road is a dirt path or road covered with a series of planks, similar to the wooden sidewalks one would see in a Western movie. Plank roads were very popular in Ontario, the U.S. Northeast and U.S. Midwest in the first half of the 19th century. They were often built by turnpike companies. ==Plank road boom== In the late 1840s plank roads le...
Found on
http://en.wikipedia.org/wiki/Plank_road
No exact match found.
