Sacramento County Zoning Code § 902-18 Encroachment

The advance or infringement of fill, excavation, buildings, structures, dams, wharfs, embankments, levees, bridges, conduits, culverts, fences, rock, gravel, or other development in, along, across, or projecting into any watercourse or floodway which may alter, impede, retard or change the direction and/or velocity of the flow of water; or, may snare or collect debris carried by the flow of water.