Sophon Cable TV reported on Facebook that the Route 7 section from Pattaya to Maptaphut is now nearly complete.
The Thai Highway Department said it is 98% done.
The road is expected to open to drivers in July of 2020 on a free basis.
It will be fully operational by August when charges will be levied.
Charges on the road will roughly equate to 1 baht per kilometer.
The toll to Bangkok will be 130 baht.
The new 32 kilometer stretch of Route 7 is being done in 13 sections at a cost of 14.2 billion baht.