25th April Bridge         Sergio Herrera Palacios
Why do people confuse 25th April       and Golden Gate?       25th April (1966)                        Golden Gate (1937)S...
Really, based on…25th April      San Francisco-Oakland Bay
25th April Bridge• 1. Brief History• 2. Construction• 3. Characterisctics• 4. Other data
1. Brief history• Initial designation (1966): Salazar Bridge• Current name(1974): 25th April Bridge after the  Revolution2...
3. Characteristics• Total lenght: 2.3 km, > 1 km are suspended• Double deck: - The upper platform: 4 lanes          6 lane...
4. Other data• Clearance below: 70 m• Height of main tower: 190 m• Depth (below deep water) of the foundation of south pil...
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25th april bridge

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by Sergio Herrera

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25th april bridge

  1. 1. 25th April Bridge Sergio Herrera Palacios
  2. 2. Why do people confuse 25th April and Golden Gate? 25th April (1966) Golden Gate (1937)Similarities:1. Suspension bridges Differences:2. 2 towers 1. Trusses3. Length, longest span, clearance below 2. Construction company4. Painted in red5. Structural design: eartquakes, winds
  3. 3. Really, based on…25th April San Francisco-Oakland Bay
  4. 4. 25th April Bridge• 1. Brief History• 2. Construction• 3. Characterisctics• 4. Other data
  5. 5. 1. Brief history• Initial designation (1966): Salazar Bridge• Current name(1974): 25th April Bridge after the Revolution2. Construction - Workers: 3.000 - Months: 45 - Inauguration in 1966, 5 months earlier - Cost: $ 32 million Tolls for 25 years
  6. 6. 3. Characteristics• Total lenght: 2.3 km, > 1 km are suspended• Double deck: - The upper platform: 4 lanes 6 lanes - The lower platform: 2 railway tracks * Part of the initial design but was eliminated and structure lightened * Necessary: extensive structural reinforcements (2nd set of main cables and > height towers)
  7. 7. 4. Other data• Clearance below: 70 m• Height of main tower: 190 m• Depth (below deep water) of the foundation of south pilar: 79.3 m

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