corduroy roads

Noun

corduroy road (plural corduroy roads)

1. A road paved with split or round logs laid crosswise side by side, used e.g. to cross swampy areas.
   • The army moved from Savannah on the 28th of January, 1865, on its march through South Carolina […] During this march, Sherman’s army had built thirty-nine miles of corduroy road through the otherwise impassable swamps.1903, Benjamin F. Gue, History of Iowa From the Earliest Times to the Beginning of the Twentieth Century, Volume 2 Chapter 12