CPV: 45000000 Construction work, 45112400 Excavating work, 45223500 Reinforced-concrete structures, 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants, 45252100 Sewage-treatment plant construction work, 45252127 Wastewater treatment plant construction work, 45262200 Foundation work and water-well drilling, 45262310 Reinforced-concrete work

CPV: 45111100 Demolition work, 45112400 Excavating work, 45223220 Structural shell work

CPV: 45112400 Excavating work, 45231000 Construction work for pipelines, communication and power lines, 45232200 Ancillary works for electricity power lines, 45310000 Electrical installation work, 45317000 Other electrical installation work, 50532400 Repair and maintenance services of electrical distribution equipment, 71323100 Electrical power systems design services

CPV: 45112400 Excavating work, 45232450 Drainage construction works, 45262212 Trench sheeting work, 45262210 Foundation work

CPV: 45000000 Construction work, 45112100 Trench-digging work, 45112400 Excavating work, 45231100 General construction work for pipelines, 45231300 Construction work for water and sewage pipelines, 45232452 Drainage works, 45233120 Road construction works, 45233121 Main road construction works, 45233140 Roadworks, 45233222 Paving and asphalting works, 45233223 Carriageway resurfacing works, 45233251 Resurfacing works, 45233252 Surface work for streets, 45233262 Pedestrian zone construction work

CPV: 45112400 Excavating work, 45232220 Substation construction work, 45255400 Fabrication work, 45315100 Electrical engineering installation works, 45317300 Electrical installation work of electrical distribution apparatus, 51112000 Installation services of electricity distribution and control equipment, 51112100 Installation services of electricity distribution equipment, 71323100 Electrical power systems design services, 71330000 Miscellaneous engineering services

CPV: 45000000 Construction work, 45112000 Excavating and earthmoving work, 45112400 Excavating work, 45200000 Works for complete or part construction and civil engineering work, 45222000 Construction work for engineering works except bridges, tunnels, shafts and subways, 45246000 River regulation and flood control works, 71311000 Civil engineering consultancy services, 72224000 Project management consultancy services, 77200000 Forestry services, 90700000 Environmental services

CPV: 45112000 Excavating and earthmoving work, 45112400 Excavating work, 45112500 Earthmoving work, 45112700 Landscaping work

CPV: 31682400 Overhead electrical equipment, 34946000 Railway-track construction materials and supplies, 34947000 Sleepers and parts of sleepers, 45000000 Construction work, 45100000 Site preparation work, 45111213 Site-clearance work, 45111000 Demolition, site preparation and clearance work, 45111100 Demolition work, 45111200 Site preparation and clearance work, 45111220 Scrub-removal work, 45111230 Ground-stabilisation work, 45111240 Ground-drainage work, 45111250 Ground investigation work, 45111291 Site-development work, 45112000 Excavating and earthmoving work, 45112100 Trench-digging work, 45112200 Soil-stripping work, 45112210 Topsoil-stripping work, 45112300 Infill and land-reclamation work, 45112310 Infill work, 45112340 Soil-decontamination work, 45112350 Reclamation of waste land, 45112360 Land rehabilitation work, 45112400 Excavating work, 45112450 Excavation work at archaeological sites, 45112500 Earthmoving work, 45112600 Cut and fill, 45112700 Landscaping work, 45112710 Landscaping work for green areas, 45113000 Siteworks, 45120000 Test drilling and boring work, 45121000 Test drilling work, 45122000 Test boring work, 45200000 Works for complete or part construction and civil engineering work, 45210000 Building construction work, 45342000 Erection of fencing, 45213000 Construction work for commercial buildings, warehouses and industrial buildings, buildings relating to transport, 45213300 Buildings associated with transport, 45213315 Bus-stop shelter construction work, 45213320 Construction work for buildings relating to railway transport, 45213321 Railway station construction work, 45213322 Rail terminal building construction work, 45221000 Construction work for bridges and tunnels, shafts and subways, 45221100 Construction work for bridges, 45221110 Bridge construction work, 45221112 Railway bridge construction work, 45221122 Railway viaduct construction work, 45221220 Culverts, 45221242 Railway tunnel construction work, 45221248 Tunnel linings construction work, 45222000 Construction work for engineering works except bridges, tunnels, shafts and subways, 45230000 Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork, 45233125 Road junction construction work, 45232450 Drainage construction works, 45232451 Drainage and surface works, 45232452 Drainage works, 45233140 Roadworks, 45234100 Railway construction works, 45234111 City railway construction work, 45234112 Railway depot construction work, 45234113 Demolition of tracks, 45234114 Railway embankment construction work, 45234115 Railway signalling works, 45234116 Track construction works, 45234120 Urban railway works, 45234123 Partially underground railway works, 45234125 Underground railway station, 45234129 Urban railway track construction works, 45234130 Ballast construction works, 45234140 Level crossing construction works, 45234170 Locomotive-substations construction works, 45234180 Construction work for railways workshop, 45234181 Construction work for rail track sectioning cabins, 45262211 Pile driving, 45311000 Electrical wiring and fitting work, 45315400 High voltage installation work, 45315500 Medium-voltage installation work, 45315600 Low-voltage installation work, 45316200 Installation of signalling equipment, 45317100 Electrical installation work of pumping equipment, 45341000 Erection of railings, 45340000 Fencing, railing and safety equipment installation work, 71320000 Engineering design services, 90742200 Noise pollution protection services, 90742300 Noise pollution monitoring services

CPV: 45000000 Construction work, 45100000 Site preparation work, 45111240 Ground-drainage work, 45112400 Excavating work, 45112700 Landscaping work, 45112710 Landscaping work for green areas, 45200000 Works for complete or part construction and civil engineering work, 45210000 Building construction work, 45213000 Construction work for commercial buildings, warehouses and industrial buildings, buildings relating to transport, 45213320 Construction work for buildings relating to railway transport, 45213321 Railway station construction work, 45213322 Rail terminal building construction work, 45232450 Drainage construction works, 45232451 Drainage and surface works, 45232452 Drainage works, 45233000 Construction, foundation and surface works for highways, roads, 45233100 Construction work for highways, roads, 45233120 Road construction works, 45233140 Roadworks, 45234100 Railway construction works, 45234112 Railway depot construction work, 45234120 Urban railway works