Last Friday, the Throgs Neck Bridge was shut down due to a three-alarm fire that started on construction scaffolding beneath the bridge. Now the FDNY says the fire was started by a construction worker's blow torch: Newsday reports, "Work being performed under the bridge at the time of the blaze is part of a reconstruction project to replace about 140,000 square feet of roadway deck at the Queens approach." The contractor, E.E. Cruz & Co., a NJ company also doing work at Ground Zero, did not comment. The 48-year-old bridge's Queens-bound lanes are open while only two Bronx-bound lanes are open.