Thanneermukkam is the longest bridge in Asia and is the latest offering from Kerala Tourism Development Corporation. It's base stone is laid off by Pandit Jawaharlal Nehru.
The Thannermukkom salt water barrier was constructed as a part of the Kuttanad Development Scheme to prevent tidal action and intrusion of salt water into the Kuttanad low-lands across Vembanad Lake between Thannermukkom on south and Vechur on north. It is the largest mud regulator in India. This barrier essentially divides the lake into two parts - one with brackish water perennially and the other half with fresh water fed by the rivers draining in to the lake.