Shipyard Upgrade
by David Brooks | Jun 23, 2021 | 0 comments

In this photo provided by Cianbro Corp., a 5,000-ton concrete entrance structure is towed out of the harbor, Sunday, June 20, 2021, in Portland, Maine. The structure, built by Cianbro in Portland, will be used by the Navy at the "Superflood Basin" project at the Portsmouth Naval Shipyard, in Kittery, Maine.