John Smeaton He pioneered the use of 'hydraulic lime' (a form of mortar that will set under water) and developed a technique involving dovetailed blocks of granite in the building of the lighthouse. His lighthouse remained in use until 1877 when the rock underlying the structure's foundations had begun to erode; it was dismantled and partially rebuilt at Plymouth Hoe where it is known as Smeaton's Tower. Deciding that he wanted to focus on the lucrative field of civil engineering, he commenced an extensive series of commissions, including: Smeaton is considered to be the first expert witness to appear in an English
Kovilthottam Lighthouse in 1960-1961 after the completion of the masonry tower. The emergency source was replaced by 12V 100W Halogen lamp in a 200 mm optic outside the lantern on 14 February 1999. Kovilthottam Lighthouse Kovilthottam lighthouse is situated at Kovilthottam in Kollam district of Kerala. The 18 meter tall lighthouse tower is painted with black and white alternating bands. The Lighthouse has been provided to serve the Port of Neendakara situated at the entrance to Ashtamudi Backwaters. Kovilthottam Lighthouse is situated at Kollam Metropolitan Area. It is about 20 km away from Kollam city centre. Before the construction of Kovilthottam, there