BOSTON -- One of the workers who helped build the Interstate-90 connector said Tuesday that he knew from the beginning that there were problems with the construction.

NewsCenter Five's David Boeri reported that Charlie Kiklis said that he never doubted that something would go wrong.

"This is the first time I ever built a tunnel, and I'd say for 85 percent of the people that worked there it was the first time," Kiklis said.

Kiklis doesn't call himself an expert, and he hasn't inspected the concrete panels that fell in the I-90 tunnel on Tuesday.

"Those are bolted to what I built," he said.

Kiklis said that he worked as a lead carpenter and foreman for more than six years, and he said that he has strong opinions about what went wrong.

"I did all the concrete that it mounted to," he said. "For those to fall, it had to be the mounting of the panels or the concrete, which I believe, strongly, it's the concrete."

He said that one major problem was that the concrete poured into the forms often didn't have time to cure and wasn't inspected.

"Like I said, concrete wasn't being dried fully enough, and then you are going to put panels on top of concrete that wasn't even tested? For all the overseers on this job, never once did I ever meet or see any of them down in that hole looking at anything," Kiklis said.

Kiklis worked on the traveler system, a hydraulic, moveable concrete form between the slurry walls.

"And in between the bulkhead was water stop, which is exactly between 6 and 8 inches wide," he said.

He said the 33-foot long seams between sections of concrete weren't properly sealed.

"You had to get that water stop just right, and guys were just throwing it in because they were told to," Kiklis said. "Time was a big factor here."