ARCUS Atlas record
Bridge over Orco stream
Total collapse of a motorway bridge over the Orco stream near San Benigno Canavese (Torino) on 13-16 October 2000, as part of the catastrophic alluvione. Documented in the ARPA Piemonte official report (A4 Torino-Milano area). Total collapse during the catastrophic alluvione of 13-16 October 2000 that struck over 50% of Piemonte, causing more than 1,800 documented damage events. The ARPA Piemonte report (2003) explicitly documents multiple bridge collapses across the Stura di Lanzo, Orco, Chisone, Dora Riparia, Dora Baltea and Po basins. The event is comparable in scale to the 1994 alluvione del Piemonte. No fatalities directly attributed to this specific collapse. Database ponti fluviali danneggiati di D'Angelo, Ballio & Ravazzani (2025), IJDRR, suppl. S3, record P036 (dec=1; abbinato per anno 2000 + coordinate, dist. 0.00 km): processo = erosione verticale (scour); componenti danneggiate = pile, impalcato; evidenza di sormonto = no. [Nota QA precedente: i rapporti regionali 2001/2003 non documentavano crolli autostradali a San Benigno (solo erosioni di scogliere presso il ponte SP40); il record Polimi P036 (dec=1) documenta invece il crollo totale per scour con danno a impalcato e pile: la verifica incrociata resta opportuna.]
- ARCUS ID
- IT00.10.35
- Date
- 2000-10-13
- Municipality
- San Benigno Canavese
- Province
- Torino
- Region
- Piemonte
- Coordinates
- 45.2412, 7.8103 · exact location
- Crossing
- Orco stream
- Use
- Motorway
- Severity
- TC
- Structural type
- Beam bridge
- Material
- Reinforced concrete
- Cause category
- Natural
- Specific cause
- Hydraulic
- Failure trigger
- Flood
- Failure process
- Scour
- Component involved
- Multiple components
- Cause evidence
- Documented
- Source confidence
- High
- Victims
- 0
- Injuries
- 0
Documentary sources (3)
- Evento alluvionale regionale 13-16 ottobre 2000 – monografia ufficiale (Official/Technical · ARPA Piemonte · 2002-10-16)
- 10 anni fa alluvione Nord-Ovest, fu inferno d'acqua – Piemonte e Valle d'Aosta (News · ANSA · 2010-10-13)
- Bridge collapses in Italy across the 21st century: survey and statistical analysis (Scientific · Journal Paper · 2025-01-01)