The Digdogg Suspension Bridge is a location from The Legend of Zelda: Breath of the Wild. It is found at the edge of the Central Hyrule region connecting it to the Gerudo province of Hyrule. Link may encounter a Hinox on the bridge.
The name, like many locations in Breath of the Wild is a reference to a character or location from a previous game. In this case the bridge takes its name from Digdogger a boss from the original Legend of Zelda.