OLIVER EVANS CHAPTER

N.J.’s Riegelsville Bridge spans the Delaware River and gives a glimpse to our past. Wednesday June 10, 2026, 6:00-8:00 p.m:an illustrated talk by Robert P. Thomas, AIA Join us for a slide-show adventure to the scenic Upper Delaware River above tidewater at Trenton NJ and its historic bridges up to…
Saturday, June 6, 2026 10 a.m. to 2 p.m. The Philadelphia Water Department (PWD) is opening its doors to the public for an open house…
Union Pacific’s famed Big Boy No. 4014, the world’s largest operating steam locomotive, will journey to the East Coast this summer for the first time…
Chapter member Rich Wagner will present the keynote address on Saturday May 16, 2026 at 11 AM. for the opening of the exhibit at the…
In this 1839 watercolor by David Johnston Kennedy, street embankments have been built through a section of low ground near Rittenhouse Square. The city was…

The SIA’s emphasis on archeology reflects a concern for the tangible evidence of early industry. Our mission is the study, interpretation, and preservation of the surviving factories, machinery, bridges, canals, industrial communities and artifacts that are historically significant.


