Gloucestershire Society for Industrial Archaeology        Stroud Subscription Rooms August 2006

This exhibition filled the ballroom and one of the displays was by the GSIA.

The themes covered by GSIA were:-

A Timber Viaducts in the Stroud Valleys

Introduction; Why timber in the Stroud Valleys?; Brunel’s Approach; Location of the nine viaducts; Details of some of the viaducts
Watts Viaduct – drawings and description
Capel’s Mill – drawings and details; Stiffness of structures
Bourne Viaduct – drawings and details
St Mary’s Viaduct – drawings and details
Wrought Iron
Rebuilding the viaducts Stratford Mill viaduct – drawings and photo
Slip Viaduct – photo
Cornish viaducts

B   Sapperton Railway Tunnels

Early history of the tunnels; Completing the tunnels; The tunnels today
Map of alignments of the various tunnel schemes
Section through the tunnels
Section showing gradients (western end)
Section showing gradients (eastern end)
Tunnelling Techniques
The Golden Valley – Approach to the western end of the tunnel – photo
The western tunnel portal – photo
Tunnel air shaft – photo

C   Types of Rails

Brunel’s 7 foot broad gauge , Barlow rails and other types of rail

D    Additional Material
Keeping track of the assets; GWR coat of arms