HANOVER, N.H. (AP) – A 49-year-old construction worker remained in critical condition Wednesday after being pinned under a pile of copper piping at a Dartmouth College dormitory project.

Officials identified him as Brian Gagnon of Randolph. Police said he worked for Ouellette Plumbing and Heating of Williston, Vt.

The injured man and coworkers were loading the piping into a storage trailer Tuesday afternoon when a storage rack collapsed.