A trench is to be dug 2500` long. The base of the trench is 3` wide. The depth is 9`. Sides are sloped at 1:1 for the top 4`. How many cubic yards of material will be excavated from the Key?

A trench is to be dug 2500` long. The base of the trench is 3` wide. The depth is 9`. Sides are sloped at 1:1 for the top 4`. How many cubic yards of material will be excavated from the Key?