Project Description

Project: Lime Building
Client: C2V+ and United Utilities
Contract Responsbilities: Design and Build Steel Frame, Cladding, Concrete Security Panels, internal Mezzanine and Finishes and Security Doors and Louvres
Contract Value: £139,000
Programme: 7 weeks

The Overview

The Lime Dosing Building on the Oswestry Water Treatment Works treats raw water from Lake Vyrnwy Reservoir and provides drinking quality water to a million domestic, commercial and industrial customers in the Liverpool and Cheshire areas.
The new plant design included a new clarification process stage, to improve colour removal from the water, modification to the filtration process, disinfection within a new contact tank using lime water, and a new clearwater tank to provide on-site storage of treated water for use as required.

The Challenge

The largest technical challenge on the building was the requirement to undertake the construction stage steelwork erection and cladding elements around major excavations, and the inclusion of the external tank, all of which were installed prior to the building commencement. Gallaway were requested to partially erect the steel frame, to enable the client installation of various tanks and equipment into the building through the roof, prior to the Gallaway internal building crane installation.
Gallaway were then required to complete the cladding elements in stages, taking the roof and each elevation as isolated elements, to aid the clients intended M&E programme. Similarly, a series of return and isolated visits were requested, for the treatment and closure of penetration enclosures around conveyors and incoming services.

The Solution

The Gallaway programme was largely built around the requirement of the clients’ programme, inclusive of their requirements for external works and large underground water storage facilities. Gallaway had to be adaptive to accommodate the changing external conditions, and at the same time attempting to co-ordinate with the client on a regular basis to establish their weekly requirements. Bespoke flashing closure detailed were adopted for the conveyor openings. All of which lead to a complex but good quality end product for our client and United Utilities