PRECAST ARCH SYSTEMS
 

 

TechSpan is a backfilled segmental precast concrete arch system designed for the rapid construction of road and rail bridges, water culverts and access tunnels.

As an alternative to more conventional forms of culvert or bridge construction, the three pinned (modifiable to two) TechSpan arch system yields cost advantages resulting from efficiency in design, supply and construction.

Utilised effectively in conjunction with Reinforced Earth TerraClass or TerraTrel headwalls, TechSpan proves to be an extremely cost effective solution. 
 
 
 
 
Speed of construction.
Standard ‘off the shelf’ profiles for use on typical road, rail, hydraulic and pedestrian applications or bespoke designs undertaken based on site specific requirements.
State of the art design methods reduce material costs by optimising arch geometry.
Reduces the costs of closures by minimising the disruption to traffic over live road and rail tracks.
Segments installed one at a time, requiring only one crane after the first day.
No scaffolding or formwork requirements.
Combined backfilling operations with Reinforced Earth Headwalls and wingwalls.
Versatile and unique precasting methods, allowing various portal geometries to be cast.
Comprehensive technical design & checking service and professional construction assistance.
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