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Newton Navarro Bridge | |
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Coordinates | 5°45′23″S35°12′9″W / 5.75639°S 35.20250°W |
Carries | Vehicle, 4 lanes |
Crosses | Potengi River |
Locale | Natal, Brazil |
Official name | Bridge of All Newton Navarro |
Characteristics | |
Design | Cable-stayed bridge |
Total length | 1781.6 m |
Width | 22 m |
Height | 103.45 m |
Longest span | 212 m |
Clearance below | 55.1 m |
History | |
Construction start | October 24, 2004 |
Construction end | November 17, 2007 |
Construction cost | US$80 million [1] |
Opened | November 21, 2007 |
Statistics | |
Daily traffic | 25,000 |
Location | |
The Newton Navarro Bridge, is one of the biggest cable-stayed bridges in Brazil built on a project by the Italian engineer Mario de Miranda. It is located in the city of Natal, the capital of the Brazilian state of Rio Grande do Norte. It connects North Zone and the cities of the north coast to the South Zone and the other regions of the city that cross the Potengi River.
The main purpose is to ease the usual heavy traffic on Igapó Bridge and to improve access to the future Greater Natal International Airport and its adjacent areas. It also increases the flow of tourism on the north coast and improves access to the inhabitants of the North Zone to the downtown and the main zones.
It is named upon Newton Navarro, an important local artist.
Also referred to as the Forte-Redinha Bridge, The main cable-stayed bridge is a prestressed concrete structure with a double plane of stay cables and conceived as an integral framed structure between the expansion joints. Piers, towers, deck main girders and stay cables lay in two parallel planes. Piers and towers are box concrete sections; main girders of deck are solid section. All construction is concreted in situ.
The approach viaducts have double columns piers while the deck is made of parallel simply supported precast girders with 40-meter spans. [2]
Region Daily Traffic
The assistant secretary for Transport in Natal, Walter Pedro, explains that the construction of a new bridge over the Potengi is under study, connecting Baldo in the East zone to Av. Itapetinga in the North zone. Currently, on weekdays, the flow on the Igapó Bridge exceeds 70,000 vehicles, while the Newton Navarro Bridge receives an average of 39,000/day. Walter Pedro assesses the situation in Igapó as saturated, and adds that in another decade Newton Navarro will reach the limit of 60 thousand vehicles per day. [3]
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. Simple suspension bridges, which lack vertical suspenders, have a long history in many mountainous parts of the world.
A cable-stayed bridge has one or more towers, from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly.
Natal is the capital and largest city of the state of Rio Grande do Norte, located in northeastern Brazil. According to IBGE's 2022 estimate, the city had a total population of 751,300, making it the 24th largest city in the country. Natal is a major tourist destination and an exporting hub of crustaceans, carnauba wax and fruits, mostly melon, sugar apple, cashew and papaya. Natal is Brazil's closest city to Africa and Europe, its Greater Natal International Airport connects the city with many Brazilian destinations and also operates some international flights. The city was one of the host cities of the 2014 FIFA World Cup.
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The Forte dos Reis Magos or Fortaleza dos Reis Magos is a fortress located in the city of Natal in the Brazilian state of Rio Grande do Norte.
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https://structurae.net/en/structures/newton-navarro-bridge