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Woodford Lane bridge replacement, UK  

Overview

ALE performed the successful replacement of the rail bridge over Woodford Lane in Nuneaton in Warwickshire.

 

Services Required

ALE was contracted to supply and erect trestling for the new concrete bridge deck and cills as well as additional sets of trestling for the existing bridge decks. The existing bridge decks were removed using 24 axle lines of SPMT in a 2 x 4 file 6 configuration and the single replacement bridge was installed using 24 axle lines of SPMT in a 4 file 12 axle.

In order to help to reduce the space requirements for the SPMTs on site and ultimately reduce the costs for the client, the packing steelwork design allowed for the SPMTs to be driven nose to nose and connected to pick up the new bridge in the specific locations specified by the designers.

Once the new bridge had been erected and the temporary works installed to secure the cill beams to the bridge deck, a trial move was carried out within the confines of the site compound to check all aspects of the build.

ALE drove the 24 axle lines in a configuration of 4 file 6 axle out of the compound and along Woodford Lane until they were positioned under the existing bridge decks. The bridge carried four tracks of the West Coast Main Line and was removed in two sections.

Once the deck ends had been cleared of any loose materials the decks were lifted clear of the abutments using the hydraulics of the SPMTs and driven back to the compound, where they were placed on the pre-erected high level trestling ready to be jacked-down after the possession.

The SPMTs were then re-configured into a 4 file 12 axle configuration and positioned under the new bridge. The bridge was then lifted clear of the trestling and driven out of the compound, along Woodford Lane and to the newly reduced abutments and installed in co-ordination with the clients’ engineers.

The bridge replacement was performed over a 24-hour period between Christmas day and Boxing Day, over 2 shifts.

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