Cầu Cổng Vàng từng sụp đổ chưa? Phân tích chuyên sâu về lý do công trình kỹ thuật gần một thế kỷ tuổi này vẫn vững vàng qua thời gian
The Golden Gate Bridge in the San Francisco Bay stands as an engineering marvel often described as "making the impossible possible." Since opening to traffic in 1937, this suspension bridge—spanning a total length of 2,737 meters with a main span of 1,280 meters—has become one of the world’s most iconic landmarks. Yet rumors and questions about its potential "collapse" have persisted, ranging from early construction accidents to more recent crowd-related incidents. So, what is the true state of the Golden Gate Bridge’s safety?
Construction Tragedies and Historical Misconceptions
On February 17, 1937, a serious accident occurred at the Golden Gate Bridge construction site. According to news reports at the time, ten workers were dismantling a temporary work platform when the wheels supporting it suddenly broke. The platform shook violently and fell into the safety net below, but the net couldn’t bear the weight and ultimately collapsed, sending the platform and workers 200 feet (about 61 meters) into the water below.
This incident resulted in significant casualties. Initial official reports suggested all ten workers might have perished. Later updates indicated that thirteen people actually fell—one managed to save himself by grabbing a rope, two were rescued by the Coast Guard, one body was recovered, and nine were presumed dead. The loss of eleven workers during the bridge’s construction may have fueled the origins of the "Golden Gate Bridge collapse" myth.
Crowd Crisis and Extreme Testing
On May 24, 1987, the Golden Gate Bridge celebrated its fiftieth anniversary. That day, massive crowds surged onto the bridge from both San Francisco and Marin County. When the two streams of people met in the middle, the situation quickly became chaotic. Estimates suggest about 300,000 people crowded onto the bridge, with another 500,000 attempting to enter from both ends. Under this immense pressure, the bridge deck began to deform—the 227-meter-high towers leaned inward, and the central span sank more than 2.1 meters.
Fortunately, organizers quickly recognized the danger and announced the closure of the bridge. After several hours of evacuation, the crowd safely dispersed. Subsequent engineering inspections confirmed that, while the deck had noticeably sagged, the structure remained sound and had not exceeded its design load.
Ongoing Reinforcement and Modern Challenges
The Golden Gate Bridge’s management has never ceased maintaining and reinforcing this nearly 90-year-old structure. Since 2008, the bridge has undergone its third phase of seismic retrofitting—the most comprehensive structural upgrade in its history. This phase is divided into two parts: Phase 3A (2008–2014) focused on strengthening the north anchorage and the N1 tower, costing about $125 million; Phase 3B targets the main suspension span, main towers, south tower piers, and protective systems, with an estimated cost of $879 million.
In March 2025, the National Transportation Safety Board (NTSB) released a report listing the Golden Gate Bridge among 68 bridges potentially at risk of ship collisions. This assessment followed the investigation into the collapse of Baltimore’s Francis Scott Key Bridge. In response, Golden Gate Bridge officials emphasized that the bridge features "one of the West Coast’s most robust ship collision protection systems" and has proactively commissioned an evaluation of the south tower’s protective system.
Engineering Ingenuity and Structural Redundancy
The Golden Gate Bridge’s design incorporates multiple layers of safety redundancy. Historical records show that when designed in the 1930s, the bridge allowed for up to 4.9 meters of vertical deflection, and could withstand up to 8.2 meters of movement without permanent damage. The original load capacity was 4,000 pounds per foot, which increased to 5,700 pounds per foot by the mid-1980s. During the 1987 anniversary celebration, the actual load reached about 5,400 pounds per foot—still within the bridge’s safe carrying capacity.
The bridge’s seismic design is also highly advanced. Each main tower stands 342 meters tall, with 227 meters above the water—equivalent to a 70-story building. The steel cables are 92.7 centimeters in diameter, each weighing 24,500 tons and composed of 27,572 individual wires.
Maintenance System and Long-Term Protection
Maintaining the Golden Gate Bridge is a continuous endeavor. Its "International Orange" paint is not just for aesthetics—it’s crucial for protecting the steel structure from corrosion. Every 15 years or so, the bridge requires a complete repainting, a task that demands meticulous preparation and precise execution to ensure durability and effective protection.
The bridge management team includes dedicated engineers, painters, and maintenance personnel who work tirelessly to ensure both safety and appearance. Routine inspections cover steel structure checks, cable maintenance, and anti-corrosion treatments among other tasks.
Extending the Safety Philosophy
Just as the Golden Gate Bridge relies on ongoing maintenance and reinforcement for nearly a century of safe operation, modern cryptocurrency trading platforms also place security at the core of their infrastructure. Robustness and systematic risk management are equally vital in both physical engineering and digital finance.
The following comparison highlights the shared safety principles between the Golden Gate Bridge and digital trading platforms:
| Safety Dimension | Golden Gate Bridge Protective Measures | Comparable Practices in Digital Trading Platforms |
|---|---|---|
| Structural Reinforcement | Three-phase seismic retrofit, over $1 billion invested | Multi-layered security architecture and system redundancy |
| Continuous Monitoring | Daily, monthly, and annual inspections and evaluations | 24/7 real-time risk monitoring and anomaly detection |
| External Threat Protection | Enhanced ship collision protection systems and barriers | Distributed denial-of-service (DDoS) protection and firewalls |
| Load Management | Ongoing assessment and enhancement of load capacity | System capacity planning and elastic scalability |
| Disaster Preparedness | Seismic design allows 4.9 meters of vertical movement without permanent damage | Multi-region data backups and disaster recovery plans |
As of January 27, 2026, Gate platform data shows mainstream crypto assets are trading steadily, with the market finding a new equilibrium after a period of adjustment. Just as the Golden Gate Bridge adapts to evolving traffic patterns and seismic risks, the digital asset market continues to seek a balance between security and innovation.
When ships navigate through the fog of the Golden Gate Strait, the first thing the pilot sees is still that iconic orange-red steel colossus. It has endured construction fatalities, crowd surges, earthquakes, and ship collision threats, but after nearly ninety years of storms, the towers still stand tall. Vehicles commute across it daily, and tourists continue to take photos in front of this "International Orange" landmark. The story of the Golden Gate Bridge is a microcosm of how humanity faces challenges—through ingenuity, persistence, and continuous improvement, we turn the impossible into possible, and vulnerability into strength. The bridge’s very existence is a powerful answer to a simple question: No, the Golden Gate Bridge has never collapsed. It stands firm in history and grows stronger through adversity—a living monument to human engineering and the wisdom of ongoing maintenance.
