Topics Technology & Engineering

State Street pipeline construction

State Street pipeline construction, 1904

Standard Philadelphia (B) Hydrant (2004.057.022.1075)

Standard Philadelphia (B) Hydrant

Sewage collection and disposal plan

Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912

1902 photo of Upper Roxborough Filter beds under construction

Upper Roxborough Filter Bed Construction, 1902