
Pontcysyllte Aqueduct is the longest and highest aqueduct in Britain, Grade I Listed and a World Heritage Site!
It was built by the terrific Thomas Telford and wonderful William Jessop in 1805.
This elegant aqueduct consists of a cast-iron trough supported 38 m above the river on iron ribs carried on 18 hollow masonry pillars.
It is a whopping 307 m long, yet only 3.7 m wide and 1.60 m deep.
You can cruise along the Llangollen Canal and soak up the views from its dizzying heights or view it from the ground – your choice!
The magic was in the use of iron-cast trough, not least because the mortar contained bull’s blood, but because Telford had only used this idea once before, on the nearby Longdon-on-Tern Aqueduct.
The iron castings for the trough were produced at the nearby Plas Kynaston Foundry, Cefn Mawr, which was built by the Shrewsbury ironfounder and millwright William Hazledine.
It’s part of a World Heritage Site and visitor information can be sought HERE!
The wonderful Chirk Aqueduct is also just a few miles downstream from Pontcysyllte and that too is a sight to behold!

Pontcysyllte Aqueduct is the longest and highest aqueduct in Britain, Grade I Listed and a World Heritage Site!
It was built by the terrific Thomas Telford and wonderful William Jessop in 1805.
This elegant aqueduct consists of a cast-iron trough supported 38 m above the river on iron ribs carried on 18 hollow masonry pillars.
It is a whopping 307 m long, yet only 3.7 m wide and 1.60 m deep.
You can cruise along the Llangollen Canal and soak up the views from its dizzying heights or view it from the ground – your choice!
The magic was in the use of iron-cast trough, not least because the mortar contained bull’s blood, but because Telford had only used this idea once before, on the nearby Longdon-on-Tern Aqueduct.
The iron castings for the trough were produced at the nearby Plas Kynaston Foundry, Cefn Mawr, which was built by the Shrewsbury ironfounder and millwright William Hazledine.
It’s part of a World Heritage Site and visitor information can be sought HERE!
The wonderful Chirk Aqueduct is also just a few miles downstream from Pontcysyllte and that too is a sight to behold!
