The Mathematical Bridge is among Cambridge University’s most recognizable landmarks and the source of a popular local legend involving Sir Isaac Newton. It is said that the great scientist constructed the crossing to demonstrate the properties of gravity. This would’ve been some feat, because the physicist and mathematician had been dead for more than 20 years before the bridge was put together.
The Mathematical Bridge was actually built in 1749 by James Essex the Younger and rebuilt on two occasions to the same design. Look closely at the structure, which appears to be shaped like an arch over the river. What’s so clever is that it is actually made out of straight timbers. Their arrangement provides the shape and the strength. Take the time to appreciate this marvel of 18th-century engineering. Another myth has it that the bridge was built without nails, but this wasn’t the case. Earlier versions were held together using iron pins and today's bridge uses nuts and bolts.
If you have paid to enter the Queens’ College campus, you can walk over the centuries-old construction. On one side of the bridge is the President’s Lodge. This attractive red brick building is one of the oldest on campus, dating back to the 15th century. Look for a part of the building that extends over the river. This section was once the site of a garderobe, a medieval toilet.
The Mathematical Bridge is located in central Cambridge and can be reached on foot from the nearby Drummer Street bus station. If coming by car, keep in mind that parking at Queens’ College is limited. If you haven’t paid for a tour of the campus you can clearly see the bridge from Silver Street, which runs along the river.
A delightful way to view the Mathematical Bridge is from the water. Glide under the crossing on a punt, a traditional long, narrow boat with a flat bottom. Rent one and explore the river by yourself or book a guided tour.
