Wonder what advantages of Marsh Arch bridge with entire arch or middle of arch over road is vs. older (Roman?) style Arch bridge where entire Arch is below surface of road?
Nice video.
(PS, If you reply to somebody, it is best to hit the small 'reply' link underneath the post you reply to, that way the other user gets a message)
Montfrooij Posted at 2018-6-4 22:50
Nice video.
(PS, If you reply to somebody, it is best to hit the small 'reply' link underneath the post you reply to, that way the other user gets a message)