Several passenger buses and other vehicles have not departed Georgetown and Lethem.
A senior government official said the newly-elected administration was aware of the problem and was contemplating steps to commence remedial works. In the past, road maintenance experts have said that it is almost fruitless to attempt to repair interior roads during very heavy rainfall.
Residents of Lethem said Tuesday night that the condition of the road was expected to worsen because more rain was expected overnight.
The road is the only communication link for the transportation of numerous passengers , large quantities of food, fuel and other supplies from the coastland to the Rupununi.
Cargo and passenger transportation by air is very expensive compared to road.