English: Opekiska Lock and Dam on the Monongahela River. The dam is located about seven miles northeast (downriver) from Fairmont, West Virginia, at river mile 115.4. The lock and dam were constructed 1961–64 by the U.S. Army Corps of Engineers to improve navigation on the Monongahela River, replacing 60-year-old locks 14 and 15. View is downriver to the northeast. (Photo credit: Wikipedia)
PITTSBURGH (AP) — A Pittsburgh-based marine services company has built two new tugboats, a reminder that the old business of pushing barges along rivers continues even in modern times.
Campbell Transportation christened the Renee Lynn and the Alice Jean at a riverside ceremony last week. The 65-foot-long, 24-foot-wide boats are the first new major vessels built in Pittsburgh in 30 years, the company said.
The Port of Pittsburgh ranked 21st in the nation in terms of total tonnage in 2011, which means it handled more traffic than ports in Philadelphia, Tampa, Fla., or Seattle, according to the U.S. Army Corps of Engineers.
Technically, the river tugs that push barges are called towboats, while those that push ships in harbors are called tugboats. But the general public calls them all tugboats.
Read more: http://www.timesherald.com/article/20130704/NEWS03/130709833/pittsburgh-gets-2-new-tugs-1st-built-in-30-years#full_story