The architectural complex of Trepponti bridge, also known as Pallotta Bridge, is the most well-known bridge of Comacchio and its most significant monument. It is situated along the ancient navigable channel Pallotta that led to the Adriatic Sea and was the fortified gate of the city.
It was built in 1638 by the wishes of Cardinal tied Giovanni Battista Maria Pallotta and the task was entrusted to the architect Ravenna Luca Danese, engaged in the same years in a more general work of urban renewal of Comacchio, which for decades was abandoned by the Estensi to Venetian incursions. He was raised by cappuccino Giovanni Pietro da Lugano and is composed of five wide staircases in brick that culminate in a rise in Istria stone. Below its single arch terminates the navigable canal Pallotta which is distributed within the historical center up to form four different channels said Salara, Saint Augustine, Borgo and San Pietro. In the course of the centuries the product underwent various interventions of modification of its attitude, especially aesthetic value, as attested by the addition of two watchtowers at the top of the two rear staircases and the six pillars placed at the top of the three front stairs.
In the vicinity of the Trepponti there is also another bridge of Luca Danese, called Ponte degli Sbirri in virtue of its proximity to the ancient city prisons.