Location: Route 340 and Phahonyothin Rd, Chai Nat No reassurance shield as Route 340 begins. Location: Route 340 and Route 3183, Chai Nat As we cross the Chao Phraya River we’ll approach Route 3183. Location: Route 340 and Route 3183, Chai Nat Follow 3183 east to Sing Buri and 3183 west to Wat Sing. Location: … Continue reading Thailand Route 340, TH-1/TH-3521 to TH-3183