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culvert
ditch side
concrete pipe
hydropower plant
drainage pipes
aqueduct
water channel
aqueducts
waste water system
spillway
ciliwung
the water shed
mill wheel
waterwheels
sewer pipes
water wheel
hydropower
sewage treatment plant
gangavali river
sluice gate
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waste water system
the water shed
kangla
drainage pipes
water trough
water channel
sewage treatment plant
water spring
mausoleum ruins
water well
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sluice gate
canalisation
water channel
hangman's bridge
viola bridge
spans
chapel bridge
pont saint-bénézet
angel bridge
outfalls
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culvert
water channel
aqueducts
canalisation
sluice gate
aqueduct
runoff
downstream gate
watercourse
two-stage lock
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vaulted cellar
mine shaft
charcoal kiln
the water shed
the interior of the
mill wheel
culvert
salt mill
tunnelling
vaulted ceiling
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footbridge
adventure bridge
suspension bridge
hanging bridge
spans
road bridge
gapstow bridge
bridge - building structure
old bridge
rope bridge
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water wheel
sluice gate
mill wheel
water well
canalisation
spillways
water stairs
water mill
water channel
watermill
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ny sewer
the water shed
water channel
waste water system
water basin
sewer pipes
pigeon spring
water spring
mine shaft
drainage pipes
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sluice gate
spans
old bridge
mirror house
hangman's bridge
underframe
viaducts
congaree
abandoned train station
railroad bridge
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culvert
ditch side
souterrain
sluice gate
the water shed
limekiln
revetments
vaulted cellar
mine shaft
underpinning
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water stairs
water channel
sluice gate
canalisation
two-stage lock
danube lock
finschhafen
source de la sorgue
aqueducts
the source of the danube
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girder
railway bridge
railroad bridge
sluice gate
girders
road bridge
steel stairs
bridge - building structure
structural steel
bridge piers
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batterie de longues
longues-sur-mer battery
digester
revetments
brake buffer stop
concrete pipe
clarifiers
standpipe
winepress
charcoal kiln
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sluice gate
two-stage lock
downstream gate
canalisation
sea trenches
outfalls
water channel
floodwalls
the water shed
outfall
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ditch side
cliff face
part of the ruins
limestone cliff
storm damage
the old roof
old wall
steep bank
viaducts
roof damage
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culvert
tardebigge
three centered arch
vaulted cellar
water wheel
water channel
hudswell
the water shed
gapstow bridge
mill wheel
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waste water system
drainage pipes
concrete pipe
sewer pipes
ny sewer
drainage
sewage pipe polluted water
gutter pipe
abutments
borehole
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corregidor
industrial ruin
bridge piers
viaducts
takachiho
under the bridge
outfalls
lost place
aqueducts
undergrounds
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longues-sur-mer battery
casemate
amphitheatre
roman excavation
batterie de longues
amphitheater
mamula
roman bath
ditch side
tumulus
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sewage treatment plant
dug-out pool
hydropower plant
wastewater treatment
waste water system
hydroelectric
roman bath
water channel
the water shed
two-stage lock
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ciliwung
gangavali river
source de la sorgue
kanal
river bank
brackenridge
cahaba
water channel
wissahickon
the vishera river