Mathematical Bridge, Cambridge

The Mathematical Bridge is the local nickname for the Wooden Bridge, a footbridge that crosses the River Cam, connecting the buildings of Queens’ College that lie on either side of the river. Part of the university grounds, it can be viewed from the road bridge on Silver Street, a few metres to the south. The bridge has earned its nickname due to the unusual design – formed of long, straight timber beams arranged radially, so as to create an arcing structure. Designed by William Etheridge and completed in 1749, the bridge was rebuilt twice, in 1866 and 1905, retaining the original design on each occasion.

Because of the design, the bridge appears to be held above the water almost unnaturally, leading to many myths – one of the most famous being that the bridge is constructed without the use of any bolts, and is held together by design alone. Sadly, this is not true, although the original design did use embedded nails which gave the impression that this was the case. The bridge is still widely believed to be the work of Sir Isaac Newton, who discovered the law of gravity. The mathematical design of the bridge contains hallmarks of Newton’s theories – but they can only be in tribute, as Newton died 20 years before the bridge was constructed.

Tip:
You can see the bridge for free from a distance away or you can pay to see it up close and walk across it on a tour of Queens' College. However, you can also travel under it on a punting tour, which is what many choose to do.