Mill Creek Sewer under construction, 1883
Bridge Street Draw, Cofferdam, ca. 1896
PWD water tech at the Philly Home Show, 1960 (detail)
Torresdale Conduit work gang, 12/18/1906
Nine visiting nurses ready for work, ca. 1909
Includes water department workers of all types – on outdoor construction sites, and in indoor settings including offices, plants, and laboratories. They may either be full-time PWD employees or contract employees.