ARCUS Atlas record
Bridge over Orco stream
Total collapse of a national road bridge (SS460) over the Orco stream near Castellamonte (Torino, Piemonte) on 13 October 2000, during the catastrophic alluvione. One person was killed at this specific bridge collapse. 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. Monografia 'Eventi alluvionali in Piemonte 2000-2002' (Regione Piemonte/ARPA, 2003): l'accentuata erosione dei terreni in sinistra dell'Orco convoglio' le acque contro la parte in rilevato del ponte della SS 'Pedemontana' a Castellamonte, portandone alla distruzione (crollo parziale la mattina di domenica 15/10, con una vittima successiva). Nota: la monografia scrive S.S.656, il rapporto 2001 S.S.565, il DB S.S.460: uniformare la denominazione.
- ARCUS ID
- IT00.10.15
- Date
- 2000-10-13
- Municipality
- Castellamonte
- Province
- Torino
- Region
- Piemonte
- Coordinates
- 45.3444, 7.7285 · exact location
- Crossing
- Orco stream
- Use
- National
- Severity
- TC
- Structural type
- Beam bridge
- Material
- Reinforced concrete
- Cause category
- Natural
- Specific cause
- Hydraulic
- Failure trigger
- Flood
- Failure process
- Bank erosion / embankment failure
- Component involved
- Multiple components
- Cause evidence
- Documented
- Source confidence
- High
- Victims
- 1
- 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)