United States National Register of Historic Places

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Pennsylvania - Area of significance: Engineering

Welty's Mill Bridge
Wertz's Covered Bridge
West End-North Side Bridge
Western Division of the PA Canal
Western Division-Pennsylvania Canal
West Hickory Bridge
Westinghouse, George, Memorial Bridge
West Norristown Historic District
Wharton Furnace
White Rock Forge Covered Bridge
Willow Steam Plant
Wissahickon Memorial Bridge
Witherup Bridge
Y Covered Bridge No. 156
Yeakle's Mill Bridge
Yoder Mill
Zook's Mill Covered Bridge


Data from United States Park Service and Wikidata