aqueduct
arroyo
bed
canal
creek bed
donga
drain
dry bed
flume
gulch
gully
gullyhole
headrace
irrigation ditch
nullah
race
river bed
riverway
runnel
sluice
spillbox
spillway
stream bed
streamway
swash
swash channel
tailrace
wadi
water carrier
water channel
water furrow
water gap
water gate
watercourse
waterway
waterworks
drainpipe
waste pipe
causeway
girder
sewer
trestle
truss
tubing