The tender calls for the rehabilitation and widening of a 66.2km highway located in Chiriquí province.
The local firm will become the sole owner of the concession.
The three contracts awarded involve total investments of US$66mn and entail building a new beltway in Amambay department and rehabilitating other roads.
The modernization of Peru's Salaverry port got underway as Grupo Romero began dredging work.
The country's comptroller ruled that the health ministry can only pay contractors for non-concession projects once works are complete, instead of paying them as they are emerge.
Authorities cite the implications on credits costs of the troubled nation's high country risk index.
The new government's proposal slashes the 2019 budget of the transport and communications ministry by 21% from the amount it received this year.
The country's aviation authority said the design of the new terminal will be tendered in August, while the construction tender will take place in December 2019.