Civil engineering works

Constructions

53

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Highways (except elevated highways), streets, roads, railways and airfield runways

5321

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Bridges, elevated highways and tunnels

5322

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Harbours, waterways, dams, irrigation and other waterworks

5323

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Long-distance pipelines, communication and power lines (cables)

5324

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Local pipelines and cables and related works

5325

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Mines and industrial plants

5326

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Outdoor sport and recreation facilities

5327

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Other civil engineering works

5329

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