LYMINSTER BYPASS BRIDGES​

Key challenge was availability of access: as Enable Infrastructure was not the principal contractor, we could not book additional possessions to complete our works. Instead, we had to work in possessions already booked, operating through liaison with Network Rail Asset Protection and Optimisation (ASPRO) teams. 

• Leveraging our extensive rail experience and robust risk assessment process, we implemented measures to minimize works ‘on or near the line’, resulting in a reduced need for additional possessions. 

• Through meticulous planning, we established ‘High Street’ working areas by securing Network Rail property, enabling us to carry out excavation, abutments, and bearing pads without disrupting railway operations, ensuring passenger services continued uninterrupted. 

• Collaborating with the Network Rail ASPRO team, we developed Any Line Open (ALO) plans for all equipment, with ALO alarms in place to prevent unauthorized access to the railway. 

• Implemented a ‘High Street’ environment for the completion of reinforcement, formwork, and deck pouring post-installation of bridge beams, permanent formwork, and edge protection, ensuring efficient project execution. 

Enabling works  

• Installation of temporary fencing, removal of vegetation along railway cutting, stripping topsoil, installation of temporary welfare, creation of temporary access road.  

Toddington Lane Bridge  

• Excavation and muck away of spoil   

• Abutment bases: prep & pour blinding, formwork, steelwork, concrete pour, curing & striking, backfill  

• Abutment wing walls: steel fixing, wall formwork, concrete pour, curing & striking   

• Bearing pads: steel fixing, bearing pad formwork, concrete pour & curing, bearing installation  

• Bridge deck: delivery & placement of bridge beams, Permadec installation, steel fixing, form & pour bridge deck, parapet installation   

• Other works including drainage, soakaways and waterproofing.  

Brighton Lane Road Bridge  

• Excavation, abutment bases, abutment wing walls & bearing pads – as above  

• Bridge deck: delivery of bridge beams, Beams & permanent formwork & edge protection installed over rail possession with 800T crane, formwork, reinforcement and pour bridge diaphragm. Parapet copings installed over rail possession. Bridge deck poured over rail possession. Edge protection removed over rail possession  

• Other works including drainage, soakaways and waterproofing.   

Demobilisation work  

• Remediation works for welfare area, removal of fencing & edge protection, new Network Rail fencing, hand- back documentation.