Model Bridges for the Narrow Gauge Garden Railway

Through Plate Girder Bridge

The Through Plate Girder Bridge is one of the most common bridge designs to be seen on railways throughout Britain. This model is aimed at the British narrow gauge scene and is distinctly freelance in design. It is not a representation of a particular bridge either full size or miniature. However, the model is highly suited for the outdoor line in a range of gauges and scales, SM32, 0 Gauge, Gauge 1, G Scale and possibly larger. The structure is certainly capable of taking a substantial load and the width is quite generous. The Through Plate Girder Bridge is a more sturdy structure than the simpler Under Beam Bridge.

Construction

A range of aluminium cross sections are used with joints connected by 6BA brass bolts and blind rivets.Web Plates: 1.5mm plateTop & Bottom Girder Beams: 25mm x 25mm 'T' sectionExternal Stiffeners: 9mm x 9mm channelInternal Stiffeners: 12mm x 12mm angleCross Beams: 16mm x 16mm channelLongitudinal Track Supports: 25mm x 3mm bar

Dimensions

TPG51
Length: 510mmExternal width: 240mmInternal width: 175mmOverall height: 90mmInternal height: 60mmSpacing between uprights:180mm

PRICE: £100.00 plus p&p 

TPG76Length: 760mmExternal width: 240mmInternal width: 175mmOverall height: 90mmInternal height: 60mmUpright spacing:180mm

PRICE: £135.00 plus p&p
 
 
 TPG100Length: 1000mmExternal width: 240mmInternal width: 175mmOverall height: 90mmInternal height: 60mmSpacing between uprights:180mm
 
PRICE: £170.00 plus p&p
 
 
 
The bridge is individually made by hand. It is supplied in its bare metal state and can be left to weather naturally or you can prime and paint it. Note we don't supply it highly polished! It bears minor scratches and scuffs from the process of construction which certainly do not detract from the appearance of the bridge.
 
Longitudinal plates are placed at a suitable distance to support 32mm and 45mm gauge track. The bridge does not include any decking but you could easily add your own wooden planking or a zinc diamond pattern grid. The length of the bridge allows it to be supported by the end 10-20mm of the beams.
 
At the shortest length the bridge is sufficiently strong without bracing however longer bridges of this type will incorporate both diagonal bracing below track level and gussets to support the side girders.
 
The bridge is supplied fully constructed as shown in the photos. Obviously the rolling stock and track are shown for scale purposes only and are not included.
 
 
We would be happy to respond to enquiries for custom made bridges of this design which could be supplied within a three week delivery period. The length could be increased to a maximum of around 1000mm. The width could also be varied to suit the smaller Mamod size rolling stock or increased to provide a double track.

Many thanks to the Elm Tree Miniature Railway for permission to reproduce photos