Is Rama Setu, or Rama's Bridge, a causeway or a dam or a bridge?From reading of Valmiki and Tulsi das there seems to be some inconsistency.
I did a search and found several web sites dedicated to the Ram Setu, or Bridge of Setu. I've pasted a few of the links in the sources section below.
According to ramasetu.org, the Rama Setu is not a bridge but a causeway:
an amazing structure in the Indian Ocean, a continuous 48 km long stretch of underwater causeway, which connects Rameshwaram, the southern-eastern tip of the Indian peninsula, to Talaimannar, the northern-western tip of Sri Lanka.
According to kalyan97.wordpress.com, "Unlike the Great Barrier Reef of Australia, Rama Setu is always referred to as a ‘bridge’. ‘Setu’ itself means a man-made bund in all bharatiya languages."
Literally, the structure is a causeway, which is an elevated strip of land within a body of water. Traditionally, however, the people refer to it as a bridge. So, you could say that the Rama Setu is both a bridge and a causeway.
Is that really the bridge ?
There are several points that say, it may not be.
Hanuman's, 400 miles, jump into the ocean, would land right up into the indonesian ring of fire to a Lanka.
Several Tsunamis could have taken the bridge under water.
Rama Sethu bridge is a new name for a coral reef caused by movement of plates between the current lanka and indian country.