The project entailed a Design and Build redevelopment of the existing asbestos clad train shed into a purpose-built storage unit. The former shed was demolished, which included the removal of foundations, with a modernised replica of the build constructed in its place.

Project Value: £1.3m
Programme: 27 weeks
Form of Contract: NR4 (MT)
Client: Network Rail
Key Trades: Groundworks / Scaffolding / Bricklaying / Drainage / Steelworks / Fireproofing / Cladding and roofing / LV electrical install / Decorating / Surfacing 

The works took place at Letchworth Distribution Depot, currently managed by Govia Thameslink Railway ‘GTR’. The construction of the new goods shed was to replace a former shed previously demolished. The depot was fully operational during the works and therefore stakeholder management was key to the project’s success. A close working relationship with the end use GTR was maintained throughout the project from planning to completion.

A full project scope is as follows:

– Excavation of existing ground to form foundations. This consisted of forming and pouring concrete pads, installing anchors, forming a reinforced beam and pouring concrete to form the foundation and slab.

– Installation of new surface drainage, identifying buried soakaway and cleansing to suit the new install.

– Erection of a steel frame with cranes and MEWPs, using Any Line Open (ALO) plans to monitor and manage the works.

– The erection of temporary works access scaffolding / edge protection surrounding the steel frame in preparation for the new roof and blockwork.

– Removal of defected timber wall below truss and the erection of a cavity block walk to create segregation between the old and new areas.

– Fire-proofing of the existing timber truss for a 60 min protection.

– Erection of a 3.6m internal blockwork and external low-level wall with engineering bricks to support cladding.

– Installation of Kingspan cladding to both the walls and roof.

– Installation of new submain, distribution board, lighting, internal and external sockets and spurs and test and commission.

– Installation of new electric roller shutters and doors.

– Intumescent painting of all exposed structural steels.

– Ground preparation and resurfacing with 10mm SMA to form a usable external surface for forklifts.