(WHAS11) -- Steel construction onto Four World Trade Center is drawing to a close.
Developers and construction workers gathered at the site to see some workers sign the building's final steel beam before it was lifted 977 feet by a crane and placed on top of the building.
The tower is scheduled to open late next year and is expected to be the first tower completed on the 16-acre World Trade Center site since the 9/11 attacks.
The building will primarily house commercial offices.










