Skulferatu #116 - Bilston Glen Viaduct, Loanhead, Midlothian

 

I do love wandering around bits of our industrial past, whether that be an old railway, a derelict factory, old mineworks or a repurposed power station.  On a stroll from Roslin to the outskirts of Edinburgh, I walked over a piece of our industrial heritage – Bilston Glen Viaduct, or as locals refer to it, the Bilston Climbing Frame.  Wandering down a steep and narrow path under the viaduct I could see why it had acquired that name with the criss-crossing of the iron lattice work underneath.

 

Bollards by the viaduct

 

Path across the viaduct

 

Wooded area of Bilston Glen

 

Underneath the viaduct

 

The criss-crossing iron lattice work underneath the viaduct

 

View of the viaduct

 

View of the viaduct from Bilston Glen

 

Bilston Glen Viaduct is an old iron railway bridge above the steep gorge of Bilston Glen. The Edinburgh, Loanhead and Roslin Railway used to run across it.  This railway carried coal and ironstone from mines at Penicuik, Roslin, Bilston, Loanhead and Gilmerton.  It also carried passengers to Roslin.

 

The viaduct was built in 1892, and replaced an earlier one built at the same spot in the 1870s.  It appears that there had been concerns about the earlier bridge due to movements of the ground caused by the mineworks.  Concerns were also raised about the design of that bridge, as it had been designed by Sir Thomas Bouch, the designer of the infamous Tay Bridge that had collapsed in 1879.

 

Bilston Glen Viaduct was built with a single deep wrought iron span supported on low piers with granite abutments at each end to support it.  The separate pieces of the bridge were all made in Glasgow and then brought out to the site where the bridge was then assembled.  As the viaduct is made of iron it expands and contracts in the heat.  On a hot summer’s day, it could be up to 2 ½ inches longer than it was on a cold winter’s day.  To avoid this damaging the supports, the bridge was fitted with expansion mountings.  These allow the bridge to move. 

 

 In 1969 the section of the railway that ran over the viaduct was closed.  In 1999 restoration work was carried out on the viaduct and it opened again as part of the walkway that follows the old railway line.

 

While wandering around under the viaduct, I left a Skulferatu in a gap in the granite stonework of the abutments supporting it.

 

Skulferatu #116

 

Skulferatu #116 in a gap in the granite stonework

 

Skulferatu #116 in a gap in the granite stonework

 

Map showing location of Skulferatu #116

 

The coordinates for the location of the Skulferatu are –

 

Latitude 55.87089

Longitude -3.150976

 

what3words: herb.windmill.widen

 

I used the following sources for information on Bilston Glen Viaduct –

 

Tourist Information Board at site

 

Canmore

Bilston Viaduct | Canmore

 

Edinburgh and Lothians: Exploring the Lost Railways

Alasdair Wham

2006