Tinsulanonda Bridge

The Tinsulanonda Bridge spans the Songkhla Lake and is part of Highway 407. It is the longest concrete bridge in Thailand, with two parts: the first part connects the coast
of Amphoe Mueang Songkhla at Ban Nam Krachai to the southern coast of Ko Yo; this part is about 1,140 metres long; the second part connects the northern shore of Ko Yo to the coast of Ban Khao Khiao, a length of 1,800 metres. It was opened to traffic on 25
September 1986. [Source: TAT]

The bridge is named after Prem Tinsulanonda (26 August 1920 – 26 May 2019). He was a Thai military officer, politician, and statesman who served as Prime Minister of Thailand from 3 March 1980 to 4 August 1988, during which time he was credited with ending a communist insurgency and presiding over accelerating economic growth. As president of the Privy Council, he served as Regent of Thailand from the death of King Bhumibol Adulyadej on 13 October 2016, until the 1 December 2016 proclamation of Vajiralongkorn as King. At the age of 98, Prem was the longest-living Thai Prime Minister. [Source: Wikipedia]

Ayutthaya Historical Research