ARCUS — Bridge Failure Research

ARCUS Atlas record

Ponte sul Trigno

Total collapse of the SS16 bridge over the Trigno river near Montenero di Bisaccia (Molise) on 2 April 2026 following severe hydraulic phenomena associated with extreme flooding and scour processes affecting the riverbed during a major storm event. One person was reported missing following the collapse. Ipotesi tecnica prevalente: scalzamento di una pila in alveo durante la piena del Trigno; indagine della Procura di Larino in corso (2026).

ARCUS ID
IT26.04.01
Date
2026-04-02
Municipality
Montenero di Bisaccia
Province
Campobasso
Region
Molise
Coordinates
42.059248033333326, 14.7951476 · exact location
Crossing
Trigno
Use
National
Severity
TC
Structural type
Beam bridge
Material
Reinforced concrete
Construction year
1970
Cause category
Natural
Specific cause
Hydraulic
Failure trigger
Flood
Failure process
Scour
Component involved
Pier / foundation
Cause evidence
Probable
Source confidence
High
Victims
1
Injuries
0

Documentary sources (3)

  1. Molise, continua ricerca del disperso nel crollo del ponte sul Trigno (News · Sky TG24 · 2026-04-05)
  2. Maltempo Campobasso, crollo ponte su SS16: i vigili del fuoco proseguono nelle ricerche di possibili dispersi (Official/Technical · Vigili del Fuoco · 2026-04-03)
  3. Il maltempo sferza il Centro-Sud: crollato il ponte sul Trigno (News · ANSA · 2026-04-02)

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