Usina Porto Primavera Airport

The airport's closure was due to economic reasons and obsolescence. It was a private airfield built for a single purpose: to support the massive, decades-long construction of the Usina Hidrelétrica Engenheiro Sérgio Motta (Porto Primavera Dam). Once the dam was completed and became fully operational, the need for a dedicated airport to transport personnel, executives, and specialized equipment drastically decreased. The operational costs could no longer be justified, and the land was later repurposed for a more economically viable project (a solar farm).

The airport site has been repurposed. A large portion of the former airport grounds, including the apron and adjacent areas, is now occupied by the land-based component of a major solar energy project. Satellite imagery from 2021 onwards clearly shows arrays of solar panels covering the area. The paved runway, while still visible, is no longer maintained for aviation and is marked with large white 'X's at its thresholds, indicating it is permanently closed. It may be used as an access road for the maintenance of the solar facility.

Usina Porto Primavera Airport was a private airfield of significant logistical importance, owned and operated by CESP (Companhia Energética de São Paulo). Its sole purpose was to serve as the primary air logistics hub for the construction of the Porto Primavera Dam, one of the longest dams in Brazil. During its active years (from the 1980s through the early 2000s), the airport handled a mix of operations:
- **Cargo Flights:** Transporting heavy machinery, replacement parts, and critical supplies for the construction project.
- **Passenger Flights:** Flying in engineers, technicians, government officials, and company executives to the remote construction site.
- **Executive Transport:** Providing quick access for management and stakeholders from major cities like São Paulo.
The airport was a vital piece of infrastructure that enabled the successful completion of a major national engineering project. The identifier BR-1941 is an unofficial code used in non-governmental databases; the airport was not part of the public commercial aviation network.

There are no known plans or prospects for reopening the airport. The prospect is considered zero. The land has been permanently repurposed for renewable energy generation with the installation of the solar farm. Re-establishing aviation operations would require the complete removal of this new, significant infrastructure, which is economically and practically unfeasible. The original reason for the airport's existence no longer applies.