The story that it was designed by Isaac Newton, that it was built without nails or connectors, that the design came from China, that the students took it apart and then couldn't reassemble it, etc. are all apparently untrue.
It was designed by William Etheridge and originally built by James Essex in 1749. The current bridge was built to the same design in 1905 but in teak instead of oak. It is an interesting design, with long members fanning out to form tangents to the arch with short radial members that tie the bridge together.
A much longer article about this interesting bridge can be found at The Bridge in Winter on the Internet.
Great Britain: Queen's College Bridge in Cambridge by Mark Yashinsky is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.