KaneCo_IL_FoxRiver_Bridge_Poly

Can be used to mask out the river where road centerlines or edge of pavement are used over the Fox River. Can be used with the FoxRiver_Bridge_Casing layer to show the outter edges of the bridges.可用于遮蔽福克斯河（Fox River）上横跨有道路中心线或路面边缘的河道区域；可配合FoxRiver_Bridge_Casing图层使用，以展示桥梁的外边缘。