Working in partnership with J. Murphy & Sons Limited, Opus provided design for the Henrietta Street Bridge in Ashton-Under-Lyne, one of the first of 5 bridges in the Network Rail’s North West Electrification Programme (N.E.P. 5) to reach implementation stage, and also requiring a 1000 tonne crane, one of the largest mobile cranes in the country.
Opus designed a new bridge structure to increase headroom to the railway allowing for the electrification. The scheme involved replacement of the original two span cast iron girder and brick arch deck, with a new single span steel and concrete composite bridge structure.
Strengthening of the abutments was achieved by innovative use of “Pali-Radice” type piles which were cored through the stone masonry abutments and installed by Keller Construction ahead of the main rail possession.
The project was a finalist in the ICE Wales Cymru Project Awards.