Newark Dyke Bridge
The Newark Dyke Bridge Reconstruction project involved the replacement of two 80m span single tracks, life-expired through truss bridges with a double track, 80m span, half-through bow string truss bridge.

The structures carry the East Coast Main Line (ECML) over the River Trent. This required works to be carried out in and around the operational railway and waterway, therefore necessitating close liaison with landowners and statutory bodies including the Environmental Agency (EA), British Waterway Board (BWB) and English Heritage etc.

The key phases covered the following:

Feasibility study – We examined options for strengthening/repair or reconstruction. The study included structural condition surveys and ground investigation, structural assessment, conceptual designs for reconstruction, cost estimating and detailed consideration of related works such as overhead line electrification, trackwork, signalling and telecommunications. Assistance was provided throughout the option selection process.

Contract documentation – We prepared all the design and build contract documentation.

Tendering – We participated during the tender process, including responding to queries and full technical evaluation of tenders. Post-tender, we participated in value engineering, value management and risk management.

Design and build – Category III involved the design check of the detailed design staged to suit the construction programme. We provided technical support to Railtrack throughout the design and construction period on all aspects of design and construction. Site construction management was carried out as part of the Railtrack/Contractor partnership.