Thousands of workers were needed to build the colossal Golden Gate. Just to maintain it you need 200 people

There are few symbols as recognizable of the United States as the golden gatethat colossal orange bridge inaugurated in 1937 that crosses the San Francisco Bay. And no wonder: 1,280 meters of bridge hanging on two 227-meter-high towers with 600 thousand rivets each. It enters through the eyes and also, it also sounds. The subject of countless photographs and an extra in numerous films and series, it is also the place chosen by many people. to end his life.

The colossal construction of the Golden Gate. When the Golden Gate opened almost a century ago, it was considered an architectural landmark that combined engineering and modernity. And no wonder: the work lasted more than four years, cost more than 35 million dollars (from the 1930s) and the construction techniques were cutting-edge. However, they faced challenges such as the turbulent currents, the hurricane winds and the dense fog in the area. Not to mention its proximity with the San Andreas and Hayward fault.

One of the solutions was to make the structure of the Golden Gate something dynamic and not rigid, which allows it to better deal with wind and tide (literal). In addition, it is designed so that the two towers absorb the tension generated by the passage of vehicles through the suspension cables. One of those towers had to be built in the middle of the open ocean, something exceptional at the time.

High turnover and a lot of security. Although its construction is carefully documented and there is an extensive graphic archive, there is no record of how many people worked on its construction beyond the fact that there were 10 contractors with their respective subcontractors, there was a lot of turnover (note: we were in the context of the Great Depression) and that at the peak of the work there were hundreds of men working, with critical roles such as structuralists, divers, spinners to weave the cables and painters and riveters.

Unfortunately, 11 people died during this imposing construction. And this despite the fact that its chief engineer, Joseph Strauss, stood out for its commitment to job security: They installed a safety net under the bridge that would save those 19 workers who became part of the Halfway-to-Hell club (halfway to hell).

200 people for maintenance. Although the exact figure is unknown precisely due to the turnover and number of contractors, there are estimates which point to figures between 4,000 and 8,000 workers who participated directly in the construction between 1933 and 1937, which seems plausible. What is most striking is that for its maintenance about 200 workers are needed among engineering professionals, metal workers, painters, mechanics, electricians, communications technicians, street and garden maintenance, among others.

The maintenance team. In the age of AI and automation, San Francisco Bridge Maintenance pulls trades with a multidisciplinary team led by a captain who oversees patrol activities 24 hours a day. As a curiosity, since 1937 there have been 11 captains. As a summary, these are the main positions and their functions:

• Painters and metal workers. They work at height and in confined spaces. They are responsible for painting, sandblasting old paint, and repairing corroded steel and rivets.
• Structural Engineers: They carry out visual and sensor inspections of each of the thousands of rivets and cables, in addition to ensuring the operation of the machinery.
• Safety and Traffic: With a flow of 100,000 vehicles daily, accidents and breakdowns are the order of the day. It is a 24/7 operational service to avoid collapsing the city.

Why so many people. As we have seen in the previous point, maintenance logistics is specialized and has a certain complexity being at altitude, it requires always being available and the environment is aggressive. Paint the Golden Gate It has its own, hence it has its own section within the bridge website. To begin with, it is not painted every so often, but rather it is painted continuously and in parts. And maintenance is selective and based on priority: it is a battle against corrosion.

The combination of the humidity of the Pacific and its high salinity is a ticking time bomb for steel. Although they chose the International Orange tone because of how well it integrates with the environment and its visibility, this paint protects the steel from UV rays and humidity. On the other hand, inspections of its expansion joints and seismic dampers are frequent to ensure that it can flex without breaking due to vibrations and earthquakes.

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Cover | Photo of Maarten van den Heuvel in Unsplash