A construction worker was seriously injured when she fell nearly 50 feet from the Devon Bridge and landed on a barge below, firefighters say.

Stratford firefighters says the 55-year-old woman fell through a hole in the Devon Bridge around 8 a.m. Tuesday.

They say the bridge is currently under repairs and that the woman works for the company doing the repairs.

Firefighters reached the barge by a fire rescue boat, where they worked with paramedics to stabilize and extricate the woman.

The woman was brought to the hospital.

Authorities say the woman fell through a 3-by 5-foot opening on the bridge.