LOCK

SN A section of the water channel on a canal or river shut off above and below by lock gates provided with sluices to let the water out and in, and thus raise or lower boats from one level to another. Use more specific type where known.
CL MARITIME
BT WATER REGULATION INSTALLATION
NT CANAL LOCK
FLASH LOCK
FLOOD LOCK
GUILLOTINE LOCK
JUNCTION LOCK
POUND LOCK
RIVER LOCK
SEA LOCK
STOP LOCK
TIDAL LOCK

 
 

LOCK

SN A section of the water channel on a canal or river shut off above and below by lock gates provided with sluices to let the water out and in, and thus raise or lower boats from one level to another. Use more specific type where known.
CL TRANSPORT
BT WATER TRANSPORT SITE
NT CANAL LOCK
FLASH LOCK
FLOOD LOCK
GUILLOTINE LOCK
JUNCTION LOCK
POUND LOCK
RIVER LOCK
SEA LOCK
STOP LOCK
TIDAL LOCK
RT BALANCE BEAM
CANAL
CANAL SLUICE

 
 

LOCK

SN A section of the water channel on a canal or river shut off above and below by lock gates provided with sluices to let the water out and in, and thus raise or lower boats from one level to another. Use more specific type where known.
CL WATER SUPPLY AND DRAINAGE
BT WATER REGULATION INSTALLATION