BANGKOK: Thailand's government said on Friday (Jul 24) it will revise and scale down an ambitious US$30 billion plan to build a coast-to-coast "land bridge" after a review cast doubt on the megaproject's commercial viability. The original land bridge proposal envisioned a 1 trillion baht (US$30.45 billion) logistics corridor offering an alternative route to the congested Strait of Malacca. The project panel also raised concerns over the environmental impact of the project, including risks to Ranong's mangrove forests, marine ecosystems, fisheries, tourism and coastal communities. The panel recommended upgrading the existing Ranong port and improving rail links to strengthen logistics connections. There is no immediate need for a new Gulf of Thailand port due to limited commercial justification, and existing port capacity.