Crohane Culvert, Co. Kerry

Project Matiere Arch
Client Kerry County Council
Stage Complete
Description Design and construction of arch over stream

Fact File

Structure Matière CM4 12.5m²/7.5m² sectional precast concrete arch
Span 4.20m (internal)
Height 3.04m (internal)
Length 22.5m (9 no. Units @ 2.5m wide)


  • Arch over water course including tapered wing walls.
  • Structure to support new N22/ Killarney road
  • Minimal impact to surrounding area.


  • ABM design allowed the water course to be redirected to accommodate new insitu profiled channel formed in stone.
  • Installation of arch took just 2 days.
  • ABM design eliminates the need for substantial foundations.

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.

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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