... small burns in deep gorges. Each bridge has a ruling gradient of approximately 2·5% downhill from the south abutment. An innovative system was adopted to launch the bridges down a slope which varied at different stages up to a maximum of 9%. The small plan area available on top of the piers meant...

... GRADIENTS CURVES CONTRACTS WALLS RETAINING BALLAST PAVED RAILS PAVING MACHINERY POWER SYSTEMS ELECTRICITY CABLES CONDUCTORS CONTACT WIRE OVERHEAD ELECTRIC LIGHT RAIL RAILWAYS LIGHT SIGNALS SHEFFIELD SOUTH YORKSHIRE UK Pmc. Insfn Civ. Engrs Tronsp. 1995,111. Feb., 24-32...