Qualter Hall has an experienced team of Electrical and Control Systems engineers based at our Barnsley HQ. As such, we were awarded the major M&E contract with London’s Royal Docks for the design, manufacture, delivery, site installation and commissioning of a complex replacement and refurbishment project of the electrical control system for the Connaught Road Swing Bridge which links London City Airport and ExCel London.

The Electrical Systems scope of work included:

  • Road Bridge Control System including new Control Panels / MCC in the Underground Machinery Room, Bridge Main Pier and Control Tower
  • Electrical Installation for new Control System
  • Re-integration of Wig Wags/Barriers/Matrix Signs
  • Electrical installation for domestics services in Underground Machinery Room (Sockets/Lighting)
  • New Fire system, Security system and Gas Monitoring System
  • New CCTV system
  • New Public Address system
  • New Auto Changeover System to manage the transfer of power between the Mains Electrical Supply and the existing Standby Generator supply
  • New Bridge Navigation Lights (LED)
  • New Bridge External LED Floodlights

Additional Works included:

In the Underground Machinery Room

  • Refurbishment of the Underground Machinery Room
  • Refurbishment of the Hydraulic systems and HPU and replacement of equipment required for the Hydraulic equipment to re-enter service
  • Supply and install new Sump Pump
  • Replace Underground Machinery Room Ventilation System ductwork and fans

Equipment associated with the Bridge Main Pier

  • Replace Bridge Main Pier bearing Auto Lubrication system
  • Replace all Hydraulic Flexible Hoses
  • Check and Pressure Test the Hydraulic Pipework
  • Clean and Internally re-pain the Bridge Main Pier
  • Check and Clean Drainage system

Refurbishment of Underground Services including:

  • Exposing the existing pipework between Underground Machinery Room and Bridge Main Pier
  • Check and Pressure Test the Hydraulic pipework after any remedial works
  • Make good civil works after completion of above


You might like

Hugh Smith plate forming – Specialist Fabricator, USA

5000t vertical plate bending Hugh Smith, a division of Qualter, Hall & Co Ltd, supplied a vertical plate bending machine, capable of exerting 5000 tonnes of force.  This machine, part of a range of plate bending machines, was designed and manufactured in our workshop facility in Barnsley, utilising in-house design experience as well as subcontract […]

More Info Here

Shoreham Harbour Swing Foot Bridge

Geoffrey Osborne Ltd/Wessex County Council The aim of the project was to replace the existing footbridge over the River Adur which is about 90 years old. The bridge links Shoreham beach to Shoreham by Sea town centre. The new bridge is a combined pedestrian and cycle bridge, which was constructed to the east of the […]

More Info Here

Seán O’Casey Bridge

John Mowlem Construction Ltd / Dublin Dockland Development Authority Appointed by main civil contractor John Mowlem Construction Ltd, Qualter Hall’s scope of work included the design, supply, installation and commissioning of a new double leaf pedestrian swing bridge over the River Liffey near Custom House Quay in Dublin. Two bridge leafs each measuring 44m nose […]

More Info Here