"Mxsmanic" wrote in message
...

Maybe. Is that land on bedrock, or is it reclaimed from the water? A
40-story building requires very solid foundations, much more so than a
runway.


Northerly Island was made from dredging spoils. Most of the present
lakeshore area rests on rubble from the 1871 fire. The lakeshore at that
time was just east of the parallel rail line.