45221120 - Viaduct construction work

CPV code 45221120 in the EU Common Procurement Vocabulary refers to Viaduct construction work. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45221100, narrowing the broader category into the specific area of viaduct construction work. As a leaf code, 45221120 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns viaduct construction work. Contracting authorities across the EU use 45221120 in TED notices and national procurement portals to signal that a tender relates to viaduct construction work.