ARCUS — Bridge Failure Research

ARCUS Atlas record

Viadotto Navicelli

Partial collapse of the Viadotto Navicelli, a moveable road bridge on the FiPiLi superstrada at Calambrone (Pisa, Tuscany) crossing the Canale dei Navicelli, on 23 April 2014 at approximately 11:00. During a closing manoeuvre after allowing a sailing vessel to pass, a series of bridge components fell onto the roadway below, causing panic among motorists. The collapse was caused by the failure of bolts holding the moveable span. No fatalities or injuries were reported. The bridge, managed by Società Navicelli, is a vital link between the Pisa and Livorno nautical industrial districts; its closure severely disrupted operations for dozens of nautical firms. Repairs required at least one month and two cranes. Confindustria noted that an analogous collapse had occurred at the same bridge in 2014 when a further event occurred in 2026. Progetto del 1990 (ramo livornese FI-PI-LI, piano 'Italia '90'), ANAS stazione appaltante, collaudato nel 2004; ponte mobile levatoio sul canale dei Navicelli. NB: un secondo, distinto collasso ha interessato lo stesso ponte il 06/03/2026 per rottura di una delle due cerniere in acciaio del meccanismo di sollevamento (non idraulico): valutare se aggiungere come scheda separata.

ARCUS ID
IT14.04.01
Date
2014-04-23
Municipality
Pisa
Province
Livorno
Region
Toscana
Coordinates
43.5826669, 10.3052469 · exact location
Crossing
Darsena
Use
National
Severity
PC
Structural type
Beam bridge
Material
Steel
Construction year
1990
Cause category
Human-induced
Specific cause
Material
Failure trigger
Movable bridge operation
Failure process
Fracture
Component involved
Connection / joint
Cause evidence
Documented
Source confidence
High
Victims
0
Injuries
0

Documentary sources (4)

  1. Crolla il viadotto Navicelli: due gru al lavoro per evitare cedimenti (News · Il Tirreno · 2014-04-23)
  2. Cede ponte mobile a Livorno, Confindustria: "successe anche nel 2014" (News · ANSA · 2026-03-05)
  3. Bridge collapses in Italy across the 21st century: survey and statistical analysis (Scientific · Journal Paper · 2025-01-01)
  4. Calambrone, paura e danni: crolla il ponte Navicelli (News · Local newspaper · 2014-04-24)

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