It's a very large project. A new company has gotten a contract and it needs to start design for the rail track of the second phase of this first increment of rail. 

Undoubtedly the city has taken many core soil samples along the route in order to estimate the possible cost of construction. But the core samples are not definitive. The real design must be based on actual tests on the various soils and lower ground conditions. More cores of the soil will also probably be taken as the locations of each support are designed into the rail track.