The directive was issued on Friday by Minister for Works, Transport and Communication Isack Kamwelwe at the opening of a meeting of the Road Board and other stakeholders.
For a long time now some people have been invading road reserves and putting up permanent structures for settlement or business.
Demolition of such buildings in accordance with the law has been raising a lot of complaints, the minister said.
Kamwele noted that the government was aware of the challenges facing institutions responsible for the management of road infrastructure, especially TARURA.
According to him, there was shortage of funds for building roads and experts, particularly engineers, including equipment to test the standard of works undertaken in some district councils, as well as worn out vehicles used for the management of construction works.
He directed local governments and regions, in collaboration with the Road Fund Board to continue solving the challenges based on availability resources.
The minister also pointed out that the government gave high priority to implementing road infrastructure projects in the country, advising local government authorities to contribute towards maintaining the roads in their respective areas.
“The success by the government has been owing to support from other stakeholders, including USAID, European Union (EU) through the European Development Fund,” he said.
Tanzania had a good road network with at least 86 per cent of the roads being highways and regional roads.