Sunday marked the 36th anniversary of the collapse of L'Ambiance Plaza in Bridgeport, one of the worst construction disasters in state history.

On April 23, 1987, a building under construction at Washington Avenue and Coleman Street collapsed.

Twenty-eight people were killed when the project came crashing down.

The construction process used in the project called, lift slab, where parts of a building were pre-constructed then lifted into place, has since been banned.

Doug Wade told News 12 he remembers witnessing the aftermath.

"The devastating moment when the building collapsed and you know all of a sudden, from the view that I had from Route 25 and to know that 28 people in a five second period died, lost their lives, was just staggering. How could this happen?" says Wade.