1. Construction for the maintenance of inland waterway and of maritime and river ports: maintenance dredging, dredging in the fairway in order to maintain the navigation depths in the critical areas; dredging in ports and basins;
2. Banks’ protecting above average water level, performed from: mining, drilling, plantations, bundles of twigs, pitching dry or built in from rough stone, concrete pitching, bituminous, geo-textile coatings, and geo-textile, gabion cushions;
3. Banks’ protecting bellow average water level, performed from: pitching on concrete foundations, pitching on prism from rough stone, pitching on prism from rough stone on cushion ripraps;
4. Banks’ protecting, supporting and consolidations from: gabions, defense walls, cofferdam, simple or anchor piles;
5. Local river bed regulating or rectifying constructions, performed from: bends’ perforation or cutting, defense dams, routing dams, closing dams, dikes, botomsills and dams;
6. Constructions of water offloading: weirs from concrete, steel concrete or stone masonry, metallic locks;
7. Constructions for water collection;
8. Constructions of water adduction: built-up concrete shafts and pipes;
9. Hydro-ameliorative constructions for lands’ irrigation and drainage, for lands’ water supply: water collection installations, steel concrete draining tanks, drainage from sorted stone;
10. Constructions for water supply and sewage: water pumping stations, water distribution networks, water purification equipment;
