The Forbidden City, also known as the Palace Museum or the Purple Forbidden City, is a monumental testament to China’s architectural prowess and historical significance. Built during the Ming Dynasty under Emperor Yongle from 1406 to 1420, this sprawling complex covers 720,000 square meters and boasts a meticulously designed drainage system that has kept it flood-free for 600 years. However, recent unprecedented rainfall has challenged this record, offering a historical lesson and a modern reflection.
The ingenious drainage system of the Forbidden City
One of the most captivating features of the Forbidden City’s drainage system is the “Thousand Dragons Spouting Water” phenomenon. The three main halls — Hall of Supreme Harmony, Hall of Central Harmony, and Hall of Preserving Harmony — are elevated on a three-tiered white marble platform, each tier adorned with intricately carved dragon heads. These 1,142 dragon heads are not merely decorative; they serve as outlets for rainwater. During heavy rains, water cascades from these dragon mouths, creating a spectacular waterfall that channels water into the Inner Golden Water River, eventually flowing out of the Forbidden City.
The Forbidden City’s drainage system is a marvel of ancient engineering. It has over 15 kilometers of channels and nearly 13 kilometers hidden underground. These channels connect secondary and main drains, leading to the Inner Golden Water River and the Moat (Outer Golden Water River). This intricate network ensures that rainwater from the 90 courtyards and 720,000 square meters of the palace grounds is efficiently drained out of the city.
The Forbidden City’s flood prevention system comprises three main defenses. The first is the Inner Golden Water River, followed by the artificial lakes of Taiye Pond and Houhai, which serve aesthetic purposes and help regulate floodwaters. The third line of defense is the Moat, a 52-meter-wide water body surrounding the city that fortifies the walls and aids in flood prevention.
Beijing’s natural topography, with higher elevations in the northwest and lower in the southeast, complements the Forbidden City’s drainage design. The palace’s layout aligns with this gradient, facilitating natural water flow. Additionally, annual maintenance during the Ming and Qing dynasties ensured the drainage system remained unblocked and functional.

Lessons from history: Reflecting on modern challenges
In July 2023, Typhoon Doksuri brought record-breaking rainfall to Beijing, flooding many areas, including the Forbidden City. This event, breaking a 600-year record, prompts us to reflect on the wisdom of ancient engineering and the challenges of modern times.
The unprecedented rainfall in Beijing is a stark reminder of the growing impact of climate change. As weather patterns become more unpredictable, even the most well-designed systems can be overwhelmed. This calls for a reassessment of our current infrastructure and an emphasis on sustainable practices to mitigate the effects of climate change.
The Forbidden City’s drainage system reflects the ancient Chinese philosophy of “harmony between man and nature.” This principle, emphasizing balance and respect for natural forces, is a lesson for modern society. We can create more resilient and sustainable urban environments by integrating traditional wisdom with contemporary technology.
The flooding of the Forbidden City also serves as a metaphor for the consequences of governance. In ancient China, natural disasters were often seen as a reflection of the moral state of the rulers. This perspective encourages modern leaders to govern with integrity, emphasizing ethical practices and the populace’s well-being.

Embracing the future with ancient wisdom
As we navigate the complexities of the modern world, the Forbidden City stands as a beacon of ancient wisdom and engineering brilliance. By learning from its history and integrating its lessons into our contemporary practices, we can build a future that respects the past while embracing innovation.
In a world where climate change and ethical governance are pressing concerns, the Forbidden City’s story is not just a historical account, but an inspirational guide. It reminds us that we can overcome challenges and create a harmonious and sustainable future with thoughtful design, respect for nature, and ethical leadership.
So the next time you marvel at the grandeur of the Forbidden City, remember that it’s not just a relic of the past, but a timeless source of wisdom for the future.
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