Thanin Somboon, the department’s director-general, said the Cabinet has approved a Bt4.3-billion budget to build the bridge linking the neighbouring countries.
The 25.8-kilometre-long bridge would link Na Tai district in Ubon Ratchathani across the Mekong River to Muang Lakhonpheng in Salavan province of Laos.
When studies are completed, the two governments will sign a memorandum of understanding on funding sources and land expropriations for the project, Thanin said.
The final details will be approved by the Cabinet in about January next year, he added.
He said Thailand would shoulder Bt2.4 billion of the cost of construction, with the rest paid by Laos.