background
build
building site
canalization
civil engineering
construction
contractor
drain
duct
earthwork
electrician
electricity
facility
fitting
fix
ground
infrastructure
installation
level
line
loop
man
new
orange
pipe
pipeline
pipes
placed into place
plastic
plumbing
pvc
row
sanitary
septic
sewage
sewer
site
soil
system
t
t joint
technology
trench
tube
tubing
under construction
underground
water
wire
work