a sturdy one probably made of cement
A canyon is a deep ravine between cliffs often carved from the landscape by a river. One type of canyon is the Grand Canyon.
It would depend on the type of bridge construction.
hammer,vibration and press of piles
truss bridges are able to support the most weight applies to the bridge, especially when the weight is applied to the middle
what landform is antelope canyon
Basin
it is a type that you like
Rocky soil.
The newest type of bridge is a cable-stayed bridge
It is a suspension bridge.
beam bridge
A suspension bridge.