Pictures from our Exhibition:
In order to erect the many large stone sections of the Pillar, we had to close Mercer Street (north), put up a substantial hoarding and construct a 60-foot scaffold surmounted by a moveable motor for lifting. The scaffold was essential because of the size and weight of the larger stones which had to be lowered on to pins and fixings running through the Pillar to add structural stability.
The most difficult manoeuvre was the positioning of the one-tonne dialstone, which had to be lowered and raised numerous times over three days, with both the architect and the astronomer observing, to achieve a precise orientation. In the end, each dial face was accurate within ten seconds - an extraordinary tribute to those involved in each of the many stages of this complex operation, from design, through build, to erection.
The trainee masons raised and lowered all the stones by hand, using methods similar to those used in the seventeenth century. To meet building regulations, each section of the column sits on reinforcing pins joining it to the sections below. The whole erecting process took two and a half months.
We are looking for more sponsors to support this unique Plaques Project:
People's Plaques Brochure (PDF)
Street History Plaques Brochure (PDF)
(If you would like a printed copy of the brochure please do ask us)
Download the Plaques Positions Visuals (PDF)
More info on Sponsoring People's Plaques
More info on Sponsoring Street History Plaques