September 2012 - Completing the Scaffold

The scaffold is complete…

Completing the scaffold over the summer months was a long and difficult process given the condition of the buildings. Seven buildings in total within the historic core had to be propped: both Pan Houses 3 and 4, Stove Houses 2, 3 and 4, the Link Block and the Packing Area.

The scaffold of each historic building had to be individually designed in order to take the unique weights and stresses. The scaffold secures the walls and floors and takes the weight from existing structure of cast iron columns, iron girders, wooden posts and beams. The scaffold not only props the building but allows access to the upper working areas of the site: the roofs, the roof beams and the upper floors. Without the scaffold the working environment would be too dangerous.

With the scaffold in place the future of the building is secure and many of the initial restoration tasks can now be undertaken.

Meet the team

The enabling work that stabilised the building was undertaken by Wates Construction and they have now been contracted to undertake the main restoration work. They will be ably assisted by William Anelay who undertook the enabling works in 2009 that saw the dismantling of many of the partially collapsed structures.

The restoration process

In order to secure the structural condition of the buildings the internal and walls of the building will be entirely rebuilt. In places these had partly collapsed as they had been built on metal plates and girders that had disintegrated due to the corrosive effects of salt reacting with the metal.

In addition external walls will be dismantled and rebuilt on more secure foundations.

This will involve brick by brick dismantling of the wall and excavation down to foundation level before rebuilding.

Grouting the Brine Shaft and Boreholes

The former brine shaft that allowed brine to be extracted from the brine streams flowing beneath the site has to be grouted in order to make it safe. Although the location of the brine shaft was known from historic maps and plans it was necessary to locate it on the ground.