Bridges+-+Presentation

**Location:** This bridge is located in Lisboa, Portugal. In one Park of Nation named Parque das Nações. The bridge was opened to traffic on 29 March 1998, just in time for Expo 98. Something of the Vasco Gama bridge: Ponte Vasco da Gama is the most important in Portugal and Europe because it is the longest bridge in the continent, and ninth longest in the world, with a total length of 17.2 km, including 0.829 km for the main bridge, 11.5 km in viaducts, and 4.8 km in dedicated access roads. Besides this it is important to note that it was built in a poor area of Lisbon, also provides a social character. Is for all these that this bridge received the award prize Ibero-Americana Institution of architecture and civil engineering in the year 2000. The Vasco de Gama Bridge was designed to withstand an earthquake of a magnitude 4.5 times greater than seismic-resistance standards established for buildings and structures in Lisbon.
 * ...VASCO DA GAMA BRIDGE... **

**Materials used and type of bridge:** Ponte Vasco da Gama represent one style of Cable-Stayed bridge and the materials used in yours construction, we have that it is made of reinforced concrete and steel in the different parts that conformed: the north viaduct, the Exhibition viaduct, the cable-stayed span, the central viaduct and the south viaduct. **Purpose of the bridge:** Its purpose is cross the river Tagus and alleviate the congestion on Lisbon's other bridge, and to join previously unconnected motorways radiating from Lisbon.



..**. Crossing Ponte Vasco da Gama...**

media type="youtube" key="LNaFBC-Oghk" width="425" height="350" align="center"


 * ... THE SOLKAN BRIDGE... **
 * ﻿ **

**Location:** this bridge is located over the river Soča near Nova Gorica in western Slovenia it was constructed a hundred years ago, on 1905. **Something of the Solkan bridge:** this bridge is very ancient and it is the second longest stone arch in the world and the longest stone arch among train bridges. It was built in the time of the Secession, between 1900 and 1906. **Materials used and type of bridge:** Solkan bridge is a 220-metre long stone bridge over the river Soča, exactly it is built of 4533 stone blocks and it took 2 years of construction; is an example of is the last arch of stone bridge constructed in the world, because the first large concrete bridges were already on the horizon.

**Purpose of the bridge:** The purpose of the bridge was to create additional connection of Viena and Triste. During the second world war the bridge suffered only minimal damage from bomb attacks, which the Germans repaired in a few days with concrete .




 * ... Video... **

media type="youtube" key="6CifvAkdn6Y" width="425" height="350" align="center"

**Location:** This bridge is located in Frankurt, Germany over the river **Something of the Vasco Gama bridge:** Eiserner steg means in English language “The Iron Footbridge” was built in July 1868 the bridge as a third bridge across the Main connecting the center of Frankfurt with Sachsenhausen. The bridge was 174 meters long by 5 meters wide and its weight was 350 tons. **Materials used and type of bridge:** originally was a suspension bridge but actually is a truss bridge and was built using iron for the structure and sandstone for the bridgeheads. **Purpose of the bridge:** It was constructed to cross the Main River.
 * ... EISERNER STEG... **




 * ... Video: Around Eiserner Steg... **

media type="youtube" key="_AGbfExIdUI" width="425" height="350" align="center"


 * ﻿ **