The US$182 million Industrial Bridge in the Biobío region will have a length of 2.5km. Construction will begin in December for completion in 2022.
The bridge, which is due for completion by 2022, will cross the Biobío River to link the communities of San Pedro de la Paz and Hualpén.
Undersecretary of public works Lucas Palacios said that the project will also incorporate 25 new hectares of park for families.
The idea for the Industrial Bridge dates back to the 1970s and the project has long been regarded as being necessary for national urban development.