101. Clifton-Vaults

My (well our) real work at Clifton is concerned with the masonry and particularly the vaults, especially in Leigh Woods pier. This month, as a wrap of month 100, I will look at some of the things we have done and found in there.

100. Clifton Suspension Bridge

I knew I wanted something special for my 100th BoM but took far too long to realise that “special to me” was what I wanted. My uncle took me to Clifton when I was seven. I have a vivid memory of peering through the railings at the tiny cars and people below. You could do that then, now you can only poke a camera through.

99. Rutters

I was asked about some issues with Rutters bridge and took the opportunity of a visit to friends to inspect and record it. Here is a detailed report associated with a 3D model you can download and inspect for yourself. It is long but I think worthwhile. I am posting just a short summary with a link to a pdf which looks rather different from usual.

BoM 98: Kinclaven

The bridge at Kinclaven is relatively late for a "masonry" arch (1903-5) but has a lot of interesting things to tell us. The main visible parts are stone but the voussoirs are precast concrete and the bulk of the arch mass insitu concrete.

91. South Bridge, Edinburgh

South bridge is just one span of a viaduct which is only exposed where it crosses the Cowgate. There is a central arch which is presumably original, with a matching strip on one side and a rather different section added at the other. Lots of cracks and movement to explore.

90. Alcantara, Toledo

I had no idea there were two Alcantaras. al-QanTarah (القنطرة) means "the bridge", says Wikipedia, which explains that. Many more then I guess but these both cross the Tagus. The other is more famous, possibly for good reason but this was well worth a visit.

89. George IV Bridge, Edinburgh

I find Edinburgh endlessly fascinating. When I lived in Dundee it was a place for an excursion. From Exeter it is a rather harder journey, but I was there for a Future of Design Conference in April and took the chance to look again at the bridges over Cowgate, south of the old High Street. I did some work on South Bridge back in the early 90s and that will (probably) feature next month. It has 17 spans. How many spans there really are in George IV Bridge I don’t know but it is, in any case, a very different bridge.

63. Pontypridd (Railway)

I have been wanting to get some decent pictures of William Edward’s bridge in Pontipridd for some time (years). March provided an opportunity but it was cold and wet and the pictures weren’t that good so try again. What I did find, though, was this amazing effort from IKB. Can it be chance that it is the same span?

Castle Garth, Newcastle

The railway viaduct at Castle Garth in Newcastle was constructed on centres built with 12 inch boards. The gaps between boards would have coincided with joints between brick courses, allowing the mortar to fall out. A possible explanation for ring separation in brick arches?