Topics Infrastructure

Plan of Philadelphia, John Hills, May 30, 1796

Plan of Philadelphia, John Hills, 1796

Dauphin and Sydenham car crash, Jan. 17, 1978

Pen and ink drawing of the proposed Delaware Seventh Street Sewer

Plan and profile of proposed Delaware Seventh St. Sewer, 1850

Black-and-white image showing sewer outlet, retaining walls and body of water

Cohocksink Sewer System outlet at Laurel Street

Laying the Main (2004.057.0074.007)

Commencement of laying the main on the East side of the River, 1871

The Pennypack Sewage Treatment Works in 1914

Pennypack Sewage Treatment Works, 1914

Photo of a work crew constructing a sewer in Rock Run, Tacony Creek, Philadelphia

Sewer construction, Rock Run, 1922

Eleven men in a work gang plug leaks in a tunnel, the Torresdale Conduit

Torresdale Conduit work gang, 1906