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A corduroy road or log road is a type of road or timber trackway made by placing logs, perpendicular to the direction of the road over a low or swampy area. The result is an improvement over impassable mud or dirt roads, yet rough in the best of conditions and a hazard to horses due to shifting loose logs.
Corduroy roads can also be built as a foundation for other surfacing. If the logs are buried in wet, acidic, anaerobic soils such as peat or muskeg, they decay very slowly. A few corduroy road foundations that date back to the early 20th century still exist in North America. One example is the Alaska Highway between Burwash Landing and Koidern, Yukon, Canada, which was rebuilt in 1943, less than a year after the original route was graded on thin soil and vegetation over permafrost, by using corduroy, then building gravel road on top. During the 1980s, the gravel was covered with a chip-seal. The late 1990s saw replacement of this road with modern road construction, including rerouting of the entire highway.
In the Pacific Northwest roads built of spaced logs similar to widely spaced "army track" were the mainstay of local logging practices and were called skid roads. Two of these, respectively on the outskirts of the mill towns of Seattle and Vancouver, which had become concentrations of bars and logger's slums, were the origin of the more widespread meaning of "skid road" and its derivative skid row, referring to a poor area.
By the early 1800s, a corduroy road had been built along what is now King Street in Waterloo, Ontario in Canada; its remains were unearthed under the roadway in 2016. The road was probably built by Mennonite settlers between the late 1790s and 1816. A historian explained that the road had been built for access to a mill but was also "one of the first roads cut through (the woods) so people could start settling the area".
Similar types of road
The puncheon or plank road uses hewn boards instead of logs, resulting in a smoother and safer surface.
- Military Improvisations During the Russian Campaign, Chap 5, Center of Military History, US Army
- Grant, Ulysses, Personal Memoirs of U.S. Grant, Chapter 26 (1885)
- Grant, Ulysses, Personal Memoirs of U. S. Grant, (c) 1885: Chapter 62
- army track
- Jackson, James (September 26, 2018). "University of Waterloo researchers hoping to borrow corduroy road samples". Waterloo Region Record. Retrieved May 28, 2019.
- Jackson, James (May 10, 2018). "Corduroy road gives a glimpse into Waterloo's past". Waterloo Region Record. Retrieved May 28, 2019.
- Csanady, Ashley (20 May 2016). "'It looked like a giant rib cage in the ground': The centuries-old origins of Silicon Valley north laid bare by LRT build". Canada's Historic Places. Retrieved March 29, 2021.
- Katz, Brigit (August 3, 2017). ""Corduroy Road" From Civil War Era Found in Michigan". Smithsonian Magazine. Smithsonian Institution. Retrieved April 18, 2021.
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