Pambam Rail Bridge --- This famous rail-bridge connects the Pambam Island to mainland India at Mandapam. The bridge built by British during 1913-14 across the Park Strait for a regular meter-guage train service. The bridge consists of total 146 spans of which one is 225 feet long and opens for ship-navigation. It is called Scherzer span (named after German engineer William Scherzer who patented the design). The drawbridge at the centre consist of two parts of navigation span which opens for ships to pass. The line was converted to broad-gauge in 2007. India Post issued a set of four stamps on the Landmark Bridges of India on 17th August 2007 with denomination of ₹ 5/- each along with miniature sheet as shown above of ₹ 20/-.