Construction of underground structures; Construction services, namely, constructing pipelines, tunnels, and shafts in the ground; Construction, maintenance, and repair of tunnels and underground structures, namely, boring, tunneling, trenching, pipe jacking, and slip-lining for tunnels, underground structures, underground utilities, underground pipeline, underground electrical wiring, underground conduit, and underground cable; Installation, repair, maintenance, replacement and refurbishment of pipelines; Construction, maintenance, replacement, and refurbishment of utility, oil, and gas pipelines; Installation of water, sewer, electric, gas and telecommunication lines; Installation of utilities in the nature of electricity, sewage, water, natural gas, and telecommunications in construction sites; installation and rebuilding of manholes; installation of large diameter pipe; Construction, maintenance, repair and cleaning of water distribution, water transmission, and wastewater networks; Construction of water, wastewater, and solid waste networks and plants; installation and maintenance of pipelines for water supply and wastewater transport; installation and maintenance of water and wastewater pumping stations; Construction, maintenance, repair and cleaning of wastewater, sanitary sewer, and storm sewer networks; Maintenance of water main pipes, namely, lining water main pipes; Construction, maintenance and repair of drainage and retention systems; Water and sewer main repair and rehabilitation services; Horizontal directional drilling for installing underground pipelines; Horizontal directional drilling for installing underground utilities, underground pipeline, underground electrical wiring, underground conduit, and underground cable; Construction services, namely, telecommunication utility construction services; Installation, maintenance, and repair of telecommunications and fiber-optic network conduit and cabling; Installation, maintenance, and repair of telecommunications and electrical environmental vaults; Construction and installation of infrastructure for information technology transport media, namely, manhole construction, duct bank installation, environmental vault construction and installation, trenching, and horizontal directional boring; Construction, maintenance, and repair of electric distribution and electric transmission networks; Construction of electric distribution networks, power plants, and substations; Construction, installation, and maintenance of pipelines, conduit, and structures for electric distribution and transmission; Construction, maintenance, and repair of natural gas distribution and transmission networks; Installation and maintenance of pipelines for natural gas supply and transport; Construction of structures for the production of natural gas; Construction of structures for the production of crude oil; Construction project management services; Construction planning; Consulting services for the construction of infrastructure facilities and networks; Constructions services, namely, repair of buildings, levees, retaining walls, break walls, culverts, flatwork, curbs, gutters, foundations, footings, concrete structures, roads, bridges, and metal structures; Building construction for civil infrastructure projects; Construction of steel structures; Construction and installation of metal structures; Installation of steel and metal sheeting; Installation, construction, maintenance, and repair of sound walls and barriers; Pile driving services; Pile driving for support of commercial and residential buildings; Installation, construction, repair, and maintenance of pile caps; Installation of refractory materials; Installation, construction, maintenance, and repair of culverts; Construction, maintenance, and repair of bridges; Demolition of bridges; Excavation services; Construction services, namely, excavation; Construction services, namely, site clearing and excavation; Rock blasting; Rock drilling; Construction services, namely, grading; Earth work construction services; Earth works services in the nature of excavating for construction of buildings, levees, retaining walls, water retention, and water diversion; Excavation services, namely, vacuum truck services; Dam construction; Marine construction, namely construction of bulkheads, piers and coffer dams; dike repair; Construction, maintenance, and repair of retaining walls; Construction of break walls, soil erosion control and stabilization services; gabion wall construction; rock scaling; Construction services, namely, shoreline stabilization, control, and restoration services; steel sheeting in support of excavations; Environmental remediation, namely, removal of underground storage tanks, cleaning of above ground tanks and site remediation; Emergency spill response services, namely, waste cleaning services and hazardous waste clean-up services; Environmental response services in the nature of environmental clean up services; Highway construction; Road construction; Construction services, namely, asphalt paving; Construction services, namely, concrete paving; Road paving; Construction of airports and airport runways; Parking lot construction and repair services, namely, concrete paving, site clearing, excavation, pad preparation, grading, and asphalt paving services; Construction, maintenance, and repair of parking structures; boring and jacking for roads and railroad crossings; Concrete pouring services; Concrete pouring and forming for concrete flatwork, concrete curbs, and concrete gutters; Concrete pouring and forming for buildings, and residential or commercial or public concrete structures; Concrete pouring and forming for building foundations, and residential or commercial or public concrete structure foundations; Installation, maintenance, and repair of concrete flat work, foundations, and footings; Excavation, removal and replacement of concrete; Guide rail installation; Installation of guard rail, guide rail, guide rail fencing, bridge railing, box beams, non-vegetation barriers, posts and end treatment attachments for the same; Installation of signs and sign structures; Installation of signs and sign structures, namely, post mounted signs, cantilevered signs, overhead fixed end signs, spread footings, drilled caissons, and pile supported structures; Snow removal services, namely, snow plowing and excavation; installation and maintenance of traffic barricades and metal traffic signs

Traffic control services, namely, management of vehicular traffic flow; management of vehicular traffic flow in the nature of traffic lane closure services; emergency and natural disaster traffic control services, namely, emergency auto and truck towing, management of vehicular traffic flow

Engineering services for the construction of utilities infrastructure facilities and networks; Engineering services for the construction of pipelines, underground shafts, tunnels, underground structures, buildings, levees, retaining walls, break walls, culverts, flatwork, curbs, gutters, foundations, footings, concrete structures, roads, runways, bridges, and metal structures