Full Report for Listed Buildings
Summary Description of a Listed Buildings
Reference Number
18536
Building Number
Grade
II
Status
Designated
Date of Designation
14/07/1997
Date of Amendment
14/07/1997
Name of Property
Bridge 150 over the Montgomeryshire Canal
Address
Location
Unitary Authority
Powys
Community
Llandyssil
Town
Locality
Dolforwyn
Easting
315001
Northing
294266
Street Side
Location
Located approximately 200m SW of Bridge 149 and its adjoining lock. The bridge carries a farm track linking two fields.
Description
Broad Class
Transport
Period
History
One of a group of ‘fish-bellied’ iron bridges probably designed and constructed by George Buck, engineer of the Montgomeryshire Canal. He was engineer of the Western branch in 1832-3, but bridges of this type were built up to c1850.
Exterior
Cast-iron ‘fish-bellied’ beam bridge. There are 5 original beams supporting a renewed deck with plywood soffit. The parapets consist of timber posts and 3 rows of modern steel rails. The iron beams sit on splayed brick abutments with sandstone copings and padstones. Immediately to the S are cast iron rebates for stop planks, and a sandstone block with iron ring no doubt for attaching boats. Beyond is a weir with wooden planks, leading down to the W.
Interior
Reason for designation
Listed as one of a small group of ‘fish-bellied’ iron bridges over the Montgomeryshire Canal. These bridges represent the early use of girders of this characteristic shape, designed to compensate for the low tensile strength of cast iron.
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