Almost all forms and pillars for floor 8 completed -- February 13, 2019
All forms for floor 8 completed, concrete for south end of 8 poured, starting forms for south end of floor 9 -- February 19, 2019
All forms for floor 8 completed, concrete for south end of 8 poured, starting forms for south end of floor 9, showing high crane with a load and Willis Tower -- still in view -- February 19, 2019
Pouring concrete for north end of floor 8, more work on forms for floor 9 progressing north -- February 22, 2019
Finished with concrete for floor 8, forms and pillers for floor 9 over half way north -- afternoon of February 22, 2019
All forms for floor 9 complete and pouring concrete at south end of it. Elevators for floor 10 with Willis Tower -- still barely in view -- February 26, 2019
Pouring of floor 9 complete, elevators to floor 10 -- March 1, 2019
Many more forms to floor 10 above horizon, but Willis Tower still in view -- March 5, 2019
High crane pouring concrete for column to floor 10 with Willis Tower -- March 6, 2019
All of floor 10 forms completed. Elevators reaching to floor 11 blocking most of Willis Tower. Only the top is showing. -- March 10, 2019