The family of a woman killed last year when the ceiling of Boston’s Big Dig tunnel collapsed on her car has reached a 6-million-dollar settlement with the company that supplied the epoxy blamed for the accident.

On July 10, 2006, a concrete ceiling panel fell on a car traveling through the Interstate 90 connector tunnel. Milena Del Valle was crushed by the block of concrete, while her husband Angel Del Valle, who was driving, escaped with minor injuries.

After extensive inspections and repairs, the tunnel reopened in 2007, but the National Transportation Safety Board announced that the fast-drying epoxy used to hold the ceiling wasn’t safe to use for overhead loads.

Following months of negotiations, Powers Fasteners, the company that supplied the epoxy, has agreed to pay the woman’s family 6 million dollars to terminate the lawsuit filled last year in August.

“We are grateful that the Powers family company has done the right thing… We hope that (project manager Bechtel/Parsons Brinckerhoff) and the other companies now show the same strength of character,” the Del Valle family said in a statement .

Fifteen companies Big Dig contractors were sued by the Del Valle’s family, but only Powers Fasteners had to face criminal charges.

The company was accused of failing to warn other contractors that the epoxy glue used to secure the ceiling wasn’t designed for long term loading such as the weight of a panel.

In a statement, Powers Fasteners denied responsibility for the 39-year-old woman’s death and expressed hope that other companies “who were truly responsible for the accident” will adopt a similar stance.