FGW 150/9 150927Teignmouth Teignmouth

Such beautiful bridge pillars and archway. Any idea how old they might be?

The line was originally constructed as the atmospheric railway 1846. But was converted to broad gauge 1848. I can't find any reference to the date of construction of the bridges but looking at the workmanship and material I would suggest they were built around the same time as the railway.
Here is a photo looking from the other direction http://www.geograph.org.uk/photo/3191304
Hope this helps