Colombia's transport ministry (Mintransporte) has launched tenders to improve 17 roads nationwide, requiring a total investment of 3.6tn pesos (US$1.86bn), Mintransporte minister Germán Cardona announced.
Offers must be submitted by January 30, according to a Mintransporte release.
Work is slated to start in March and will be carried out on roads including the La Plata-Inzá-Popayán and the Popayán-Coconuco-Isnos highways connecting departments Huila and Cauca; and the Honda-Manizales highway connecting departments La Guajira and Caldas.
Another initiative entails paving work on the Pereira-Quibdó highway between departments Risaralda and Chocó.
No further details regarding the tenders were provided.
The initiatives fall under the Corredores de la Prosperided program of the government's national development plan.
Cardona also announced that the ministry will spend 6tn pesos on infrastructure projects in 2012.
"This amount of money has never before been invested in infrastructure. The funds represent the development of very important projects for the country, which will also generate employment," Cardona was quoted as saying.
Projects include a 1.2tn-peso road maintenance project, for which a tender is due to be launched in February.
Another 913bn pesos will go towards repairing 2,500km of road infrastructure damaged as a result of the La Niña weather phenomenon. Finally, some 300bn pesos will be allocated to repair roads in poor condition, according to Cardona.