Full Report for Listed Buildings


The list description is not intended to be a complete inventory of what is listed: it is principally intended to aid identification. By law, the definition of a listed building includes the entire building (i) and any structure or object that is fixed to the said building and ancillary to it and (ii) any other structure or object that forms part of the land and has done so since before 1 July 1948, and was within the curtilage of the building, and ancillary to it, on the date on which said building was first included in the list, or on 1 January 1969, whichever was later.

Summary Description


Reference Number
4276
Building Number
 
Grade
II  
Status
Designated  
Date of Designation
19/10/1971  
Date of Amendment
30/03/1999  
Name of Property
Bridge across the Afon Trwsgl with the adjoining tramway bridge  
Address
 

Location


Unitary Authority
Gwynedd  
Community
Dolbenmaen  
Town
Dolbenmaen  
Locality
Cwm Trwsgl  
Easting
254582  
Northing
349253  
Street Side
 
Location
The bridge lies high in the valley, and spans a small torrent immediately below the mill platform of the Prince of Wales quarry, with the Tramway Bridge immediately to its E.  

Description


Broad Class
Transport  
Period
 

History
The bridge is of indeterminate age, possibly of medieval origin, carrying the ancient trackway over the mountain from Pennant to Rhyddu and Nant Colwyn. The tramway bridge was built for the Gorseddau tramway in the mid C19 connecting the Prince of Wales to Gorseddau and Portmadoc via the Cwmystradllyn.  

Exterior
Clapper type stone bridge. Drystone abutments of small boulders carrying roadway 3m wide. Four slabs remain, one is missing. Immediately to its E, the embankment and integral bridge for the quarry tramway leading away from the slate mill, having a rectangular water leet approximately 2.2m high. The embankment consists of battered and closely dry-laid slate, twice offset both sides.  

Interior
 

Reason for designation
Included as a small bridge on an ancient cross-mountain trackway, a group with the C19 quarry tramway bridge adjoining, the latter forming part of the extensive cluster of remains associated with the Prince of Wales Quarry.  

Cadw : Full Report for Listed Buildings [ Records 1 of 1 ]





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