A3 is a motorway in northern Portugal, connecting Valença and

Porto Porto or Oporto () is the second-largest city in Portugal, the capital of the Porto District, and one of the Iberian Peninsula's major urban areas. Porto city proper, which is the entire municipality of Porto, is small compared to its metropol ...

via

Braga Braga ( , ; cel-x-proto, Bracara) is a city and a municipality, capital of the northwestern Portuguese district of Braga and of the historical and cultural Minho Province. Braga Municipality has a resident population of 193,333 inhabitants (in ...

to the

Portugal–Spain border The Portugal–Spain border, also referred to as "The Stripe" ( es, La Raya, pt, A Raia, gl, A Raia, mwl, La Raia), is one of the oldest borders in the world. The current demarcation is almost identical to that defined in 1297 by the Treaty o ...

, on the

Minho River The Minho ( , ) or Miño ( , , ; cel-x-proto, Miniu) is the longest river in Galicia, sharing the border with Portugal, with a length of . By discharge, it is the fourth river of the Iberian peninsula, after the Douro, Ebro, and Tagus. The Min ...

at Tui, where it connects to the

Autovía A-55 The Autovía A-55 (also known as ''Autovía del Atlántico'') is an autovía in Galicia (Spain). It is 32 km (20 miles) long and runs from the centre of Vigo to the Portugal–Spain border, on the Minho River at Tui, where it connects to the A3 ...

Galicia (Spain) Galicia (; gl, Galicia or ; es, Galicia}; pt, Galiza) is an autonomous community of Spain and historic nationality under Spanish law. Located in the northwest Iberian Peninsula, it includes the provinces of A Coruña, Lugo, Ourense, a ...

. The A3 is operated by Brisa - Auto-estradas de Portugal. It has a total length of 112 km and coincides with the European itinerary number 1. This motorway leaves the urban IC23 circular motorway around Porto and Gaia. This motorway passes through Maia, Braga and to the border town Valença. The motorway is a toll road, and most of the route north is climbing steadily until reaching Spain. The motorway is linked by a bridge on the border and another motorway to link with Vigo and Pontevedra which is in Galicia. It is under the care of Brisa S.A Sections of the road carry very little traffic.Brisa Annual Report 2012 p.193

References

Motorways in Portugal {{Portugal-road-stub