A trough used for feeding power to a traveling body in a noncontact manner, a paved structure, and a method of constructing the paved structure. The trough used for a paved structure feeding power to a power receiver provided in a traveling body through an electromagnetic wave, includes: a trough body having a trough depression extending in the direction in which the traveling body runs; a magnetic member laid in the trough depression; a power feeding body laid on the magnetic member to feed power to the power receiver through an electromagnetic wave; and a power feeding body protector laid in the trough depression to cover the power feeding body.