Blog of the Pennsylvania State Historic Preservation Office

Month: October 2023

Update on PennDOT’s Historic Metal Truss Bridge Management Plan

In 2017, PennDOT, in conjunction with the Federal Highway Administration (FHWA) and the PA SHPO, published the Metal Truss Bridge Management Plan (Management Plan). This plan, designed to serve as an ongoing planning tool, was the result of a multi-year effort to address the accelerating loss of historic metal truss bridges throughout the state. Now, roughly six years after the publication of the official document, PennDOT would like to provide an update.

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Quarrying our Data for Quarry Districts

Happy Archaeology Month!

One of the most common objects shown to archaeologists for identification are rocks. Most of the time, these objects just end up being rocks, but sometimes people do find one that has been altered in some way by human hands. These artifacts are called lithics and they can be found all over the United States and throughout the rest of the world.

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