An excavation is to be dug that is 2`6“ deep 2`6″ wide at the bottom, the sides are sloped at a 45 degree angle and the trench is 170 ft long. How many cubic yards of soil will be excavted from the trench ?

An excavation is to be dug that is 2`6“ deep 2`6″ wide at the bottom, the sides are sloped at a 45 degree angle and the trench is 170 ft long. How many cubic yards of soil will be excavted from the trench ?