Brunel's Other BridgeBrunel Swivel Bridge Project Photos November 2014
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Investigative work by Dorothea Restorations with Mann Williams
This work is funded by the English Heritage grant
Tuesday 28 October 2014
We are in the process of progressing investigations to inform the repair and restoration of the bridge structure. As part of these works we are looking to carry out some trial repairs on a small number of selected areas of plate and riveted locations. The aim is to select areas that are either in an advanced state of decay, or where there are later plated repairs to the original structure.We are keen to ensure that we keep the conservation officer informed of these progressing works so that we can respond to any queries. We met on site to agree the locations of the investigations. These will be chalk-marked and photographed as a record of proposals. The physical investigations were planned to commence the following week.
John Wallis of Dorothea discussing work to be investigated with Jon Avent of Mann Williams |
Patch 2, which has already been repaired |
Another discussion. Patch 1. Rusty along the join, again has previously repaired |
Patch 1 near the bridge stop. Different types of fastenings to try |
Patch 7 inside by road timber support |
Trial area to blast |
Tuesday 11 November 2014
Dorothea starting to cut a panel out, and keeping a photographic record |
hard work cutting wrought iron |
two rivet head cut off, two more to do |
more cutting |
drilling rivet out. Rivets very hard too |
try the lump hammer and drift method now |
nearly there now |
success |
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long rivets needed due to joint |
paint sample |
using acetyline this time |
rivet removed by acetyline |
all out |
plate levered off- so much rust. The repair has caused more problems |
so sad |
the patch is so thin |
the rivets |
the second plate came off quicker. Rust at the point of contact with the base of the bridge |
in the triangular section, some good. Not much evidence of paint! |
some bad. We have now put temporary plates on to avoid further damage |
bailing out the water before the slurry can be removed |
getting properly kitted up. No idea how much slurry to remove |
very tarry |