Glasinfryn Viaduct
Glasinfryn Viaduct
![Sunlight catches the east side of the viaduct, highlighting three of the arches north of the skew span.](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image1-299.jpg)
![Edged by a rounded string course, the skew arch spans the River Gegin and comprises seven rings of engineering brick.](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image2-299.jpg)
![Walkers can now cross the deck on a footpath, protected by the viaduct's substantial stone parapets.](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image3-299.jpg)
![The main arches, which trees are conspiring to mask, are formed of five brick rings sitting on imposts above stone piers.](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image4-296.jpg)
![The abutments of the skew span are buttressed on both sides, creating shallow refuges at track level.](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image5-291.jpg)
![From the west side, the gradient of the deck is apparent as the line gently climbed towards Bethesda.](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image6-281.jpg)
![The attractive red sandstone must have been a contributory factor in the viaduct's Grade II listing.](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image7-263.jpg)
![](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image1-299.jpg)
![](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image2-299.jpg)
![](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image3-299.jpg)
![](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image4-296.jpg)
![](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image5-291.jpg)
![](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image6-281.jpg)
![](http://www.forgottenrelics.org/wp-content/uploads/2023/03/image7-263.jpg)
Enticed by a slice of the local slate action, the London & North Western Railway drove its 4¼-mile single-track branch to Bethesda, opening on 1st July 1884. It featured a couple of small viaducts, a 297-yard tunnel and two intermediate stations.
At Glasinfryn, the track was carried over the River Gegin by a viaduct comprising seven arches of 30 feet either side of a 60-foot skew span over the water. The structure incorporates a curve to the east of approximately 24 chains in radius.
Adding greatly to the local landscape – hence its Grade II listing earned in September 1997 – the piers, spandrels and parapets are built from red sandstone. Imposts serve as the base for the brick arches which are generally formed from five rings of blue brindles, except the skew arch which has seven rings. Either side of the river span are wedge-shaped piers, each incorporating three buttresses. These form refuges at deck level.
Redundant since 2nd October 1963, the viaduct had a Grade II listing bestowed upon it in 1997. It now plays a role in the 11-mile Lon Las Ogwen Railway Path, managed by Sustrans.