The Roman bridge built over the Guadiana River at Emerita Augusta (Mérida, Spain) in 1st century CE is the longest surviving bridge from ancient times, having once featured an estimated overall length of 755 m with 62 spans. Today, there are 60 spans on a length of 792 m.
Donate and help us!
We're a non-profit organisation and we need your help! This website costs money and we have to buy quality research material to produce great content. Our donors make this project possible. Please consider donating; even small amounts help. Thank you!