If you’re scared of heights, this video of workers assembling a soaring tower in West Yorkshire, England, may make you a little queasy.

In the video, daredevil workers can be seen working at dizzying heights to construct a temporary 1,040-foot (317-meter) transmitter tower next to the 1,084-foot (330-meter) Emley Moor tower.

A Super Puma helicopter is used as a crane to carry sections of the tower to the brave workers who lean off the mast while fastened to a harness to reach the pieces.

The tower “will be used to transmit TV signals while work is carried out on the existing transmitter,” according to the BBC.

Construction is currently underway, on the new 2nd temporary mast at Emley Moor Transmitter in West Yorkshire.
Daredevil workers can be seen working at dizzying heights alongside the existing tower which is scheduled for maintenance & will take 5 years to complete.
A Super Puma helicopter is being used as a crane to carry the sections to the brave workers who lean off the mast while fastened to a harness to reach the pieces.
The 2nd mast will stand alongside the existing 1084ft mast but will be just 44 feet shorter and is due for completion by the end of the year.