General Information
Name in local language: | Ponte 25 de Abril |
---|---|
Beginning of works: | 1962 |
Completion: | 6 August 1966 |
Status: | in use |
Project Type
Structure: |
Three-span suspension bridge |
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Support conditions: |
for registered users |
Secondary structure(s): |
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Function / usage: |
Motorway bridge / freeway bridge Railroad (railway) bridge |
Material: |
Steel bridge Structurae Plus/Pro - Subscribe Now! Structurae Plus/Pro - Subscribe Now! Structurae Plus/Pro - Subscribe Now! |
Construction method: |
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Location
Location: |
Lisbon, Lisbon, Portugal |
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Crosses: |
|
Coordinates: | 38° 40' 47.27" N 9° 10' 29.84" W |
Coordinates: | 38° 42' 30.94" N 9° 10' 40.62" W |
Technical Information
Dimensions
total length | 2 277.64 m | |
approach viaduct | ||
---|---|---|
total length | 945.11 m | |
main bridge | ||
main span | 1 012.88 m | |
length of side spans | 483 m | |
span lengths | 2 x 99.64 m - 483.42 m - 1 012.88 m - 483.42 m - 98.64 m | |
clearance | 70 m | |
number of spans | 6 | |
deck | deck depth | 10.7 m |
pylons | height | 190.47 m |
number | 2 |
Materials
cables |
steel
|
---|---|
piers |
reinforced concrete
|
pylons |
steel
|
deck truss |
steel
|
Participants
Subcontractor
Cable steel supplier
Bearings
Initial construction (1962-1966)
Design
Architecture
- Ray M. Boynton (architect)
Wind tunnel testing
Construction engineers
Contractor
Reconfiguration
Design
Renovation
Steel construction
Suspender replacement
Cables
Relevant Web Sites
Relevant Publications
- Addition of the Railroad Deck on the Tagus River Bridge. Presented at: IABSE Congress: Structural Engineering for Meeting Urban Transportation Challenges, Lucerne, Switzerland, 18-21 September 2000, pp. 1315-1320. (2000):
- Bridge Within a Bridge. In: Civil Engineering Magazine, v. 68, n. 10 (October 1998). (1998):
- Bridges. Macmillan Publishing Company, New York (USA), pp. 114-115. (1993):
- Bridges - Ponts - Brücken. Atrium, Mexico City (Mexico), pp. 54-61. (2002):
- Bridges that Changed the World. Prestel, Munich (Germany), pp. 100-101. (2002):
- About this
data sheet - Structure-ID
20000237 - Published on:
16/05/1999 - Last updated on:
31/01/2023