DRAIN

UF Drain Syphon
Gutter
Land Drain
SN An artificial channel for draining water or carrying it off.
CL WATER SUPPLY AND DRAINAGE
BT WATERCOURSE
NT CULVERT
DRAINAGE DITCH
DRAINAGE LEVEL
FIELD DRAIN
LAND IMPROVEMENT DRAIN
RT DRAINAGE SYSTEM
LEAT
SEWER
SLUICE
SOAKAWAY
UNDERGROUND STRUCTURE