This is my latest photograph of the Frost Tower construction. It was taken on Saturday, September 16, 2017. The form work will contain the pour of the main roof slab. The building is near full height with only the 26th Mechanical floor to go.
Here is a shot of the skyline taken today showing the columns going up on the 26th level and you can see its height in relationship to 500 W. 7th (Bank of America). That building is the light colored one just to the right of the Frost Tower in the photo. You can see that it is clearly taller than the 273' tall building.