Pont Ynysferlas
| Pont Ynysferlas | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Type | Bridge | ||||||||
| Status | In use | ||||||||
| Construction No. | UB 196 | ||||||||
| Operational No. | UB 51.97 | ||||||||
| Location | |||||||||
| Grid reference | SH597437 | ||||||||
| Route Navigator | |||||||||
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| Stations | Locations | Bridges | Tunnels | Map | |||||||||
Pont Ynysferlas (also known as Pont Afon Nanmor) is a river bridge on the Welsh Highland Railway.
To the right of the bridge abutment is a remnant of the former steel bridge that occupied this site from 1922 to 1999. The bridge was never painted throughout its 77 year life and unfortunately corrosion rendered it unsafe and beyond economic repair. The remnant that you see here is the last and only remaining piece from three similar truss bridges which were constructed by Sir Robert McAlpine in 1922.
The new bridge that replaces the old is an accurate reconstruction of the original Douglas Fox design making use of both existing abutments and the bearings at the south end. The water under the bridge is deeper than at any other of the bridges on this railway; the river bed is nearly 6m below rail level. The bridge is very similar to those at Bryn y Felin and Pont Dylif.
Adapted from WHR E-group posting 28903
- New Bridge Construction
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One of the trusses is loaded up at Brunswick Ironworks
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The crane for lifting the trusses crosses UB 199 (it backed up to to its lifting position for lifting the trusses)
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The trusses cross UB199
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Truss positioning
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More truss positioning
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Both trusses now in position - part of old truss in view
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Steel decking components lowered into position
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Steel decking components lowered into position
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General view showing detail of old truss
All photos above, dated 17th March 2007, and by John Ewing