234: Heavy Construction
Industries in the Heavy Construction subsector group establishments
that engage in the construction of heavy engineering and industrial
projects (except buildings), for example, highways, power plants, and
pipelines. The construction work performed may include new work,
reconstruction, or repairs. Establishments identified as heavy
construction management firms are also included. Establishments in this
subsector usually assume responsibility for entire nonbuilding projects
but may subcontract some or all of the actual construction work.
Special trade contractors are included in this group if they are
engaged in activities primarily related to heavy construction, for
example, grading for highways. Kinds of establishments include heavy
construction general contractors, design builders,
engineer-constructors, and joint-venture contractors.