check dam
A barrier in an erodible channel to control the flow of water.
Intermittent transverse marks on a material due to vibration during rolling, extrusion, cutting, or drawing.
In stone masonry cutting, the moderately rough surface resulting from the use of coarse chat (crushed chert) as the abrasive
At the termination of an aqueduct, a reservoir architecturally embellished as a public fountain.