Trigate Bridge

Trigate Bridge is one of the three bridge in Gotham City that connect it to the mainland. It is implied to be the biggest, most important or at least more trafficked out of all three.

History
In 2020, after Alice escape from their custody, the Crows ordered Loeb and Brown Bridge to be closed to prevent her from leaving the city; however they kept the Trigate open in order to ensure the traffic and hoping to caught her there, suggesting it's the more logic option to leave the city.

Trivia

 * Trigate Bridge is likely named that as for being the "third gate" out or inside of Gotham.