What is the difference between Old London bridge and Modern Bridge?

The Old London Bridge, constructed between 1176 and 1209, was a remarkable feat of engineering for its time. Compared to the modern bridges that grace the River Thames today, the Old London Bridge exhibited several distinct characteristics:

1. Structure: The Old London Bridge was built on sturdy stone piers supported by massive wooden piles. These piles rested on a layer of gravel, creating a solid foundation for the bridge. Conversely, modern bridges often use concrete, steel, or other materials for their construction.

2. Gates: The Old London Bridge featured a central drawbridge guarded by fortified towers at both ends. These gates controlled access to the bridge and allowed ships to pass through. Modern bridges typically don't have such structures.

3. Houses: Remarkably, the Old London Bridge was lined with houses and shops, transforming it into a bustling community atop the river. Merchants and craftsmen set up businesses on the bridge, catering to travelers and traders. In contrast, modern bridges serve the primary purpose of facilitating transportation.

4. Traffic: In its heyday, the Old London Bridge was a crowded and bustling thoroughfare, with heavy foot and cart traffic. Over time, the narrowness and congestion posed challenges, leading to the construction of wider, more efficient bridges. Today, modern bridges are designed with greater capacity to accommodate various modes of transportation and ensure smoother traffic flow.

5. Height and Clearance: The Old London Bridge was relatively low in height compared to modern bridges. This limitation often hindered the passage of larger ships, requiring them to lower their masts to navigate under the bridge. Contemporary bridges are typically designed with higher clearances to allow for uninterrupted navigation.

Overall, the Old London Bridge stands as a remarkable testament to medieval engineering prowess and the vibrant social life that took place on its span. Modern bridges, while prioritizing advanced structural design, efficiency, and capacity, have evolved to meet the changing needs of urban transportation and navigation.