Tri-State Guardrail & Sign Co.,

Heavy Construction, Enivronmental and Property Management; Administrative Management and General Management Consulting Services; All Other Miscellaneous Waste Management Services; All Other Specialty Trade Contractors; Commercial and Institutional Building Construction; Construction Sand and Gravel Mining; Facilities Support Services; Highway, Street, and Bridge Construction; Industrial Building Construction; Industrial Sand Mining; Land Subdivision; Lessors of Nonresidential Buildings (except Miniwarehouses), Lessors of Residential Buildings and Dwellings; New Multifamily Housing Construction (except Operative Builders); New Single-Family Housing Construction (except Operative Builders), Other Foundation, Structure, and Building Exterior Contractors, Other Heavy and Civil Engineering Construction, Plumbing, Heating, and Air-Conditioning Contractors, Residential Remodelers, Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction