![Section of the A3 motorway, Douro Minho, which connects Porto to Valenca, Portugal. Affluence of vehicles in both directions Stock Photo - Alamy Section of the A3 motorway, Douro Minho, which connects Porto to Valenca, Portugal. Affluence of vehicles in both directions Stock Photo - Alamy](https://c8.alamy.com/comp/2RACYMB/section-of-the-a3-motorway-douro-minho-which-connects-porto-to-valenca-portugal-affluence-of-vehicles-in-both-directions-2RACYMB.jpg)
Section of the A3 motorway, Douro Minho, which connects Porto to Valenca, Portugal. Affluence of vehicles in both directions Stock Photo - Alamy
Porto e Braga voltam a ter autocarro que liga as duas cidades: câmaras assinam acordo para assegurar linha pela A3 - Expresso
Câmaras do Porto e Braga acordam retoma do autocarro via A3 a partir de quarta-feira - Atualidade - SAPO 24
![Autoestrada A3 o Autoestrada Porto-Valença (Portugal) (actualizado 2024) | Salidas, peajes, radares, mapa.. Autoestrada A3 o Autoestrada Porto-Valença (Portugal) (actualizado 2024) | Salidas, peajes, radares, mapa..](https://zona-autopistas.com/wp-content/uploads/Auto-estrada-A3-mapa.jpg)