Some of history’s best-kept secrets aren’t buried underground at all, due to modern-day developments, they lie hidden today, and when the landscape changes due to climatic conditions, sometimes these hidden secrets come into the limelight.Something similar happened in Rome, where the relentless heatwave and months of near-zero rainfall have pushed the Tiber River to unusually low levels, and in doing so, they’ve exposed the remains of a nearly 2,000-year-old bridge that normally lies completely submerged.
2000 year old bridge built by one Emperor, named after another
The structure which is now visible out of the riverbed is known as Nero’s Bridge, or Pons Neronianus, though its name is something of a historical mix-up. The bridge is believed to have actually been built around 39 AD under Emperor Caligula, but it later came to be associated with his nephew, Nero, who had a habit of renaming existing structures after himself during his reign from 54 to 68 AD.The bridge once served a genuinely important purpose, connecting the ancient Campus Martius, the area now home to the Spanish Steps, Piazza del Popolo, and the upscale shopping streets around Via Condotti, to the site of the Circus of Nero, where St. Peter is believed to have been martyred and where the Vatican and St. Peter’s Basilica now stand. According to Antonella Bonini, an archaeologist with Rome’s cultural heritage superintendency, who said to the Associated Press, “Nero is the most famous person linked to this area,” relating to that connection with the Circus and St. Peter’s death.
Why have the water levels dropped
The reason the bridge is visible is because of a sharp and sustained drop in the Tiber’s flow. Rome’s civil protection coordinator, Giovanni Giganti, told the Associated Press that the river’s flow has fallen below 80 cubic metres a second, roughly half the usual average for this time of year. He says, “We are facing a major water crisis.” Giganti explained that the shortfall isn’t simply about a lack of rain overall, but the dry stretches between rain events this year have dragged on for far too long.
Archaeologists have an opportunity to experience it up close
According to a CNN report, the best vantage point for seeing the ruins is from the Bridge of Angels, which leads toward Castel Sant’Angelo near Vatican City. Normally, the bridge sits entirely underwater, but this year full blocks of the ancient structure are visible, giving archaeologists a genuine opportunity to study it up close.The last time the bridge’s remains surfaced like this was during a similar drought back in 2022, a reminder that as dry summers become more frequent, Rome’s river may keep giving up its secrets more often than anyone would like.
