Subjects Urban Development

Colored ink drawing showing drainage areas and sewer inlets in Philaelphia in the early 19th century

Drainage area plan, early 19th century

A section of wooden water pipe, long out of service, removed from a Philadelphia street in 1901. It had been installed about 1801.

Wooden Water Pipe, removed from Market Street, December 6, 1901

Black-and-white image showing several cubic measurements of various types

Volume of Sludge from 1,000,000 Gallons of Sewage

Black-and-white image of a graph with several captions

Diagram Showing Rate Between Bulk of Wet Sludge and Its Percentage Moisture

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]

Black and white photo shows several workmen on a wooden structure

Bridge Street Draw, intermediate pier, ca. 1896

Black and white photo of two men facing the camera and several facing away while standing and sitting on a board

Bridge Street Draw, construction of piers, ca. 1896

Black and white photo of men on a wooden bridge outcropping

Bridge Street Draw, Cofferdam, ca 1896 [Detail]

Black and white photo of a man checking his watch in front of a creek with construction around it

Bridge Street Draw, looking north, ca. 1896

Bridge Street Draw, southeast corner property, June 12, 1896