build
channel
construct
construction
deep
dig
digger
ditch
drainage
earth
earthwork
electricity
engineering
excavation
facilities
facility
fixed
fosse
gas
ground
heap
hole
industrial
industry
infrastructure
land
laying
load
maintenance
mechanical
pile
pipe
pipeline
plumbing
power
repair
roadworks
site
straight
structure
supply
technology
trench
trencher
trenching
underground
underneath
unfinished
utilities
work