A construction worker died after falling several stories when the platform he was on collapsed at a work site in Hudson Yards Monday night, officials said.

The 62-year-old hardhat was standing on wooden planks on the 16th floor at 401 Ninth Ave. near 33rd Street when they gave way and he plummeted down to the sixth floor, cops said.

He was pronounced dead at the scene.

The site is slated to be a skyscraper called 1 Manhattan West as part of a large-scale real-estate development program by Brookfield Property Partners, with a projected completion in 2020.