The Hull Tidal Surge Barrier is a vital flood defence, protecting thousands of properties in Hull and the surrounding area from seasonal flood events.

Qualter Hall were awarded the initial design order by the Environment Agency in April 2008, to develop an integrated design solution and target price for the total replacement of the Barrier drive mechanism.  The main objectives of the project were to provide a robust and reliable design with a greater level of redundancy in the event of either equipment or power failure.  A hydraulic drive proposal was developed for each tower, which are linked by a synchronising cross shaft, to enable the barrier to be operated independently from each drive assembly.  A hydraulic retarder system is also incorporated, to enable the lowering of the gate in a controlled manner in the event of both mains and generator power failure.

Works commenced on site in April 2009 to carry out repair/replacement of mechanical equipment fitted to the gate and pre-installation of a new gate latching mechanism.  During the same outage in the low flood risk season, the gate and ancillary structures were fully painted in line with the existing colour scheme.

All new equipment was fully assembled and tested at our facility in Barnsley, prior to installation on site.  A full mock up of the plant rooms was built in the factory to ensure that the equipment fitted within the restricted space confines of the existing structure.  Integrated functional testing was carried out to prove various modes of operation and to reduce overall project risk, prior to critical path installation works.

Final critical path installation commenced May 2010 for a 9 week period.  The Barrier had to be deployable in manual mode after 41 days, with the remaining outage period being used to complete works associated with automatic operation.  Due to the critical nature of the works involved, all site activities were carried out by Qualter Hall personnel on a 24 hour/7 day per week basis.

After completion of installation, extensive site acceptance testing was carried out to check and prove all functions prior to formal training of the client’s operational and maintenance personnel.  The contract also includes the provision of a 3 year maintenance period after take over.

Testimonials

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