page_title: List of lattice girder bridges in the United Kingdom
section_title: Part A
hierarchical_section_title: List of lattice girder bridges in the United Kingdom / Part A
caption_attribution_description: English: View of bridge under renovation. The furthermost spans are still encased in protective sheeting
context_page_description: This list is intended to help identify a particular early form of lattice girder bridge which was popular with bridge engineers particularly in the United Kingdom in the latter half of the 19th century.
  The term "lattice girder", is used in the UK and "lattice truss" is more widely used in the USA. A lattice girder or truss is often defined only in two dimensions, that is the structure as seen from the side. Such definitions sufficed for the early lattice girders such as the US Town truss which was designed for construction in timber. Early iron structures using a Town-type lattice replicated this appearance, leading to the instantly recognisable lattice-work shown in the bridges in Part A of this list. However, design considerations required that an iron structure required many of the latticed bars to be stiffened in the third dimension. Thus, on closer examination, the delicate appearance of these early iron lattices is belied by this much more complex stiffening in the thickness or third dimension.
context_section_description: These bridges utilise dense latticing constructed from flat iron bars or angles
caption: Llandeilo bridge carries the Heart of Wales railway over the River Towy
exif: {"Image ImageDescription": "", "Image Make": "Canon", "Image Model": "Canon PowerShot A1100 IS", "Image DateTime": "2011:01:06 12:40:39", "Image YCbCrPositioning": "Co-sited", "Image Tag 0x1001": "4000", "Image Tag 0x1002": "3000", "Image ExifOffset": "194", "EXIF ExposureTime": "1/125", "EXIF FNumber": "5", "EXIF ISOSpeedRatings": "200", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:01:06 12:40:39", "EXIF DateTimeDigitized": "2011:01:06 12:40:39", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "3", "EXIF ShutterSpeedValue": "223/32", "EXIF ApertureValue": "149/32", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "149/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, auto mode", "EXIF FocalLength": "1009/50", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "4000", "EXIF ExifImageLength": "3000", "EXIF FocalPlaneXResolution": "4000000/243", "EXIF FocalPlaneYResolution": "1500000/91", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF SceneCaptureType": "Standard"}