Pennsylvania Historic Preservation

Blog of the Pennsylvania State Historic Preservation Office

Concrete bridge over stream.

March 16, 2022
by Tyra Guyton
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Pennsylvania’s Reinforced Concrete Thru Girder Bridges

Few people think of history when crossing a bridge.  But bridges tell an important story about engineering and technology, especially in Pennsylvania where the early years of iron, steel and concrete came together to produce many early bridges that represent … Continue reading

March 10, 2021
by Noël Strattan
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The 2020 PASS Report

For the past several years, PA SHPO archaeologists have issued an annual report – known as the PASS Report – detailing the ongoing efforts to record Pennsylvania’s archaeological sites.  Despite 2020’s many challenges, over 280 new archaeological sites were recorded … Continue reading

March 27, 2019
by Karen Galle
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Spring = New Historical Markers!

Earlier this month, PHMC approved 18 new historical markers to the collection of over 2,500 for subjects that run the gamut from notable athletes to a late 19th century African American archaeological site in Mercer County.

Smoothed exterior and shell-tempered ceramic sherds of Edinburg Phase Mahoning Ware recovered from the Ashton Cemetery Site (36LR0165).

January 17, 2018
by Guest Contributor
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Punching through the Plowzone

Archaeologists are always on the ready for the next mythical idea of what we are and what we do. We don’t dig dinosaurs or find buried treasure (at least the kind that entails riches untold). We don’t all work in … Continue reading