ambulanceA New York City construction worker was rescued from an underground trench at subway construction projection early this morning, after being stuck in “muck” from the waist down for nearly four hours.

The worker became trapped at 8:30 p.m. last night 75 feet below ground at the Second Avenue subway line site in Manhattan.

Rescuers from the FDNY, NYPD and Office of Emergency Management participated in the rescue effort, bringing vacuum systems, pulleys and plywood down into the trench to use in freeing the man from what firefighters described as “muck.”

A witness said he was brought to the street level “shivering and alive” and was hosed off before being transferred to a gurney.

The worker is reported to be in stable condition. Two firefighters sustained minor injuries and one firefighter sustained a serious injury during the rescue operation.

Streets were closed for several blocks around the area as crews worked at the scene.

In August, a controlled blast at the Second Avenue construction site sent rocks flying into the streets when steel plates covering the blast failed.

There is no word yet on what caused the worker to get stuck in the trench.