I knew she'd do or say whatever necessary at that moment to con me into getting her out of the hot sun. The fish were indeed there and we started catching them. First, consider the location and purpose of bridges - to cross over creeks, rivers, streams, etc. And a creek or river edge is to a bass what a dog is to a flea - a grand place to live. They'll run to the creek edge like a toddler runs to hide beside Mommy's skirt.
Creeks also produce current - some a little, some a lot depending on their water shed.
Current oxygenates the water and carries food sources to resident bass that position themselves on the downcurrent side of pilings and other cover. Here they hide in ambush points to watch for approaching tidbits of food like baitfish, crawfish and salamanders to drift past. Food, shelter and security. Bridges come in all sizes from a mile or more spanning the main body of a large lake to those so small a boat can barely slip through. Needless to say, larger bridges receive more pressure from boat traffic, jet skis and other fishermen.