The Guadiana International Bridge is a bridge that crosses the Guadiana River connecting southern Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 (town of Ayamonte

Ayamonte

Ayamonte is a town and municipality located in the province of Huelva, Spain. According to the 2005 census, the city has a population of 18,001 inhabitants.-Location and history:...

) and Portugal

Portugal

Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 (town of Castro Marim

Castro Marim

Castro Marim is a town and a municipality in the southern region of Algarve, in Portugal. The municipality is composed of 4 parishes.The present Mayor is José Fernandes Estevens, elected by the Social Democratic Party.The municipal holiday is June 24....

). It is not split evenly between the two countries, with a greater share of it situated in Portugal. Completed in 1991, its structural type is a cable-stayed bridge

Cable-stayed bridge

A cable-stayed bridge is a bridge that consists of one or more columns , with cables supporting the bridge deck....

, with a deck of prestressed concrete

Prestressed concrete

Prestressed concrete is a method for overcoming concrete's natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete...

. The bridge is open to vehicles only.

The bridge is 666 metres long with the central span between the towers being 324 metres. The deck stands 20 metres above the river, allowing the navigation of ships of deep draft. The two towers of the bridge are 95 and 96 metres tall, respectively. The Spanish side tower rests on an artificial island built on the riverbed, while the pillar on the Portuguese side is on land.

The bridge connects the Via do Infante de Sagres A22 motorway in Portugal to the Autopista del Quinto Centenario A-49 motorway in Spain, and is part of the European route

International E-road network

The international E-road network is a numbering system for roads in Europe developed by the United Nations Economic Commission for Europe . The network is numbered from E 1 up and its roads cross national borders...

 E01

European route E01

The European route E 01 is a series of roads in Europe, part of the United Nations International E-road network, running from Larne, Northern Ireland to Seville, Spain. There is a sea crossing between Rosslare Harbour, in Ireland, and Ferrol, but no ferry service...

.