ARCUS Atlas record
Ponte Lenzino
Total collapse of Ponte Lenzino on the SS45 over the Trebbia on 3 October 2020. Early prosecution hypotheses focused on foundation scour, but the 2026 GUP decision, relying on court-expert evidence, attributed the collapse to movement of the Carisasca landslide acting on the Genoa-side abutment and rejected river erosion as the governing cause. Classified here as Landslide; the detailed structural process is retained as Other documented mode.
- ARCUS ID
- IT20.10.04
- Date
- 2020-10-03
- Municipality
- Corte Brugnatella
- Province
- Piacenza
- Region
- Emilia-Romagna
- Coordinates
- 44.6891, 9.328 · exact location
- Crossing
- Trebbia river
- Use
- National
- Severity
- TC
- Structural type
- Arch bridge
- Material
- Masonry
- Cause category
- Natural
- Specific cause
- Landslide
- Failure trigger
- Landslide / slope failure
- Failure process
- Other documented mode
- Component involved
- Abutment
- Cause evidence
- Probable
- Source confidence
- High
- Victims
- 0
- Injuries
- 0
Documentary sources (4)
- Alluvione ottobre 2020 – Danni in 108 comuni del Piemonte (Official/Technical · Protezione Civile · 2020-10-04)
- Maltempo Liguria e Piemonte: ponti crollati, morti e dispersi (News · ANSA · 2020-10-03)
- Alluvione in Piemonte: ponti crollati, dopo la catastrofe si contano i danni (News · Montagna.TV · 2020-10-05)
- Crollo del ponte Lenzino: la decisione del GUP e la frana di Carisasca (News · Court-reporting article · 2026-04-03)