The First Avenue South Bridge is a pair of double-leaf
bascule
Bascule may refer to:
* Bascule bridge, a moveable bridge with a counterweight that continuously balances the span in providing clearance for boat traffic
* Bascule (horse), the arc a horse's body takes as it goes over a jump
* Bascule light, a sma ...
bridge
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...
s built between 1956 and 1998 that carry
State Route 99 over the