He said the board expected Cabinet approval this year and will open bids in 2019.
The eight projects are: Pak Num Pho-Denchai; Denchai-Chiang Mai; Jira-Ubon Ratchathani; Khon Kaen-Nong Kai; Chumphon-Surat Thani; Surat Thani-Had Yai; Had Yai-Padangbesar; and Baan Pai-Nakhon Phanom, he said.