The Port Authority of Bilbao and the Provincial Council of Bizkaia plan to create up to 11 lay-by areas on the N-240 highway, which links Tarragona to Bilbao.
The stop zones will be located between Zeanuri and Bedia and will be able to accommodate specialised vehicles, said the port.
The widths of the lay-bys will range between 5.5 m and 13 m, while the lengths will be between 107 m and 243 m.
The local county council will handle construction and will be responsible for tendering the contracts. The port authority will take charge of financing. Works are expected to begin in February 2021, with a construction lasting for 19 months.
According to the port of Bilbao, the N-240 is widely used by special transport vehicles and is the main route between companies that manufacture heavy components, such as wind energy equipment.