


Mill Creek Sewer under construction, 1883

Bridge Street Draw, Cofferdam, ca 1896 [Detail]

Bridge Street Draw, looking north, ca. 1896

Bridge Street Draw, Cofferdam, ca. 1896

Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907

Belmont Filters construction, 1903

Upper Roxborough filter beds under construction, July 1902

Devereaux Street Sewer, Philadelphia magazine, 1911

Sewer construction, Rock Run, 1922
