Menai Straits and Telford the Engineer Posted on 5-Feb-20 by David Warner Described by Charlie as Telford’s masterpiece. Sheltering nearby to the bridge is the famous Caernarvan Castle. Completed in 1330 it stands proudly guarding the Menai Straits and Telford’s masterpiece !! Share on Share on Facebook Tweet about it Subscribe to the comments on this post Tell a friend