Subjects Urban Development

Black-and-white image of a tray with three compartments and four small glass cylinders

Drain water from sludges obtained from sedimentation, septic and Emscher tanks

Black-and-white line graph showing two jagged lines on a grid

Diagram Showing Decreased Amount of Dissolved Oxygen in Delaware River, 1913

Black-and-white image of a brick sewer outlet that drains into a creek with trees and a hill behind it

Thomas Run sewer outlet at Cobbs Creek

Black-and-white image showing a man standing in a large concrete half-pipe

Thomas Run sewer outlet during construction

Black-and-white image of a body of water with trees and shoreline in the far distance

Delaware River at Arch Street from the New Jersey side, 1914

Water, Water Everywhere – Philadelphia Record, 1937-03-14

Black-and-white image of a refinery with smokestacks emitting smoke

A Day in the Ma’sh – Oil Refinery

Black-and-white image of workers in a pit with a sewer opening behind them and text

Frankford Creek: Sad History of an Urban Stream title page

Black and white photo of a man wearing a hat and standing on a bridge with his arm on a post

Wood truss drawbridge, Orthodox Street over Frankford Creek, 1899 [Detail]

Black and white image of a drawbrige partially opened with water to the left of it

Bridge Street Draw, draw partly open, July 26, 1897

Black and white photo of several men in the foreground, some wearing hats, and a few others standing behind them on a wooden bridge

Bridge Street, intermediate pier, ca. 1896 [Detail]

Black and white image of several workmen and many pieces of wooden timber

Bridge Street Draw, intermediate pier, ca. 1896 [detail]