GME: GNOME MINIATURE ENGINEERING: 0 scale bascule and truss bridges

Bridges for G scale, O scale, and larger scale model railways

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GARDEN RAILWAY BRIDGES: Gnome Miniature Engineering structures are hand built from laser cut, brake formed parts, and assembled by traditional solid riveting. They capture the proportions of full size bridges, but are multi-scale working structures for small railways rather than exact scale models. The design and construction allow us to build custom bridges to your own requirements at a reasonable cost where standard parts can be used.

Our standard bridges are built for year round operation outdoors, so corrosion resistant materials are used throughout. They are ready to use, painted or unpainted, except for the construction of the bridge piers and installation of the track by the customer. They can be used with track from 16.5mm gauge for 0n30 to 63.5mm for Gauge 3.

G SCALE BRIDGES: plate girder bridges and underslung trusses for G and larger scales.

O SCALE BRIDGES: plate girders, through and underslung trusses, and operating bascules.

SPECIAL STRUCTURES We are now working on specials to be used for displaying model locomotives up to 1:8 scale, 7 1/4 inch (184 mm) gauge, and will be building the heavier versions in mild steel - more information coming soon.

EDUCATIONAL MODEL STRUCTURES: All truss bridges are available as educational models to demonstrate the principles and properties of pin jointed structures. These will normally be supplied without paint finish or decks. Material and section data will be made available.

The catalogue number (TR32 etc) indicates the type and length of the bridge deck in inches. For prices, availability, installation drawings and enquiries about custom designs,
please contact us at gme@bell.net

Updated on 5th March 2012 - information added
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05 November 2011

0 scale bascule and truss bridges

The BA24 bascule bridge (sometimes called a drawbridge) is an operating trunnion type with a clear opening of just over 18 inches (457 mm). (When Sir Nigel Gresley designed the corridor tenders for his A4 Pacifics he decreed that an 18 inch width should be enough for his widest driver, so we chose the same width for access to the interior of large layouts).

Click on the drawings below to see larger versions.

The basic range of 0 scale through truss bridges, for 1:48 and 7 mm:ft., including timber decks, is shown below. Some customers are finding that these bridges serve well on S scale railways.

0 scale truss bridge dimensions:
Span:                      TR24    24 inches (610mm)
                                       TR32    32 inches (813mm)
                                       TR42    42 inches (1067mm).

Inside width:                        3.75 inches (95 mm)
Outside width:                      4.45 inches (113 mm)
Inside height from deck:        5.0 inches (127 mm).