Do you have a date for this bridge?
There aren't a lot of detail photos to evaluate, but my guess is later than 1920, but prior to 1940 - with a bias toward the older end of the range. But trying to guess bridge age by construction methods is risky and inaccurate because each builder could - and did - pick and choose various techniques and methods.
There's most of a builder's plate showing--time for a visit! Too far for me to make a day trip....
It looks very old. What year was it built in?
I would like Matthew Ridpath's permission to use his photograph of this bridge for our web site. I am President of the Schuylkill River Heritage Center in Phoenixville PA where this bridge was manufactured. We are doing an update to our web site and will have Phoenix bridges and structures all across the USA. We are a 501c3 charitable non-profit organization. My home phone # is:610-783-0645.
I have attached a "Bridges for our Web Site list that is still a work in progress, but will give you an idea of what we are doing.
Thank you.
Attachment #1 (application/zip; 31,712 bytes)