Rail Bridge at Erry Clara, Co. Offaly

Project Rail Bridge at Erry Clara, Co. Offaly
Client Irish Rail
Stage Complete
Description Manufacture Design and construction of bridge over a live road and support rail track

Fact File

Structure Matière Opti Cadre 7.5mx4.8m
Span 7.5m (internal)
Height 4.8m (internal)
Length 15m (6 units @ 2.5m)


  • Bridge structures to support railway track
  • Limited time to close railway track ( Structure installed in 1 weekend)
  • Bridge to span new road to eliminate the need for level crossing.


  • Matière Opti Cadre 7.5m x 4.8m with precast wing walls.
  • Bridge installation over one weekend.
  • Road under railway to allow local access.

The Matiére system was originally developed in France for hydraulic structures in the 1980‘s, since then the system has been developed into a modular range of arch, box and portal frames for a wide range of transport and infrastucture applications. Indeed, some 10,000 structures already exsist worldwide exploiting soil structure interaction to minimise section sizes and allow rapid, cost effective on-site installation with precast units.

ABM hold the licence for the Matiére system in the UK and Ireland.

Click here to view a YouTube video of how ABM construct a bridge in 3 days

Key Personnel

Main Board Directors
Pat O'Neill
Sean Minihane
Brendan O'Neill


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