![Pen and ink drawing of the proposed Delaware Seventh Street Sewer](https://waterhistoryphl.org/wp-content/uploads/Sewer-Connection-1850-20050020525-200dpi.jpg?w=300)
![Pen and ink drawing of the proposed Delaware Seventh Street Sewer](https://waterhistoryphl.org/wp-content/uploads/Sewer-Connection-1850-20050020525-200dpi.jpg?w=300)
![1830 plan for the Pine Street Sewer](https://waterhistoryphl.org/wp-content/uploads/PineStreetSewer_20040920273.jpg?w=300)
Plan of Pine Street Sewer, 1830
![Mill Creek Sewer under construction. Several men standing beside a giant partially constructed sewer pipe.](https://waterhistoryphl.org/wp-content/uploads/Mill-Creek-Sewer_20040920079_300dpi.jpg?w=300)
Mill Creek Sewer under construction, 1883
![](https://waterhistoryphl.org/wp-content/uploads/DU09_20050070041.jpg?w=300)
Norman Lofton inspects sewer at Ditman and Sheffield, 1987
![](https://waterhistoryphl.org/wp-content/uploads/DU06_20050070028.jpg?w=300)
Norman Lofton inspects sewer at Ditman and Sheffield, 1987
![](https://waterhistoryphl.org/wp-content/uploads/DU07_20050070029.jpg?w=300)
Sewer crawler Clarence Baskerville checks tunnel for leaks. He has faced the dangers of working in sewers for past three years, 1971
![](https://waterhistoryphl.org/wp-content/uploads/DU05_20050070036.jpg?w=300)
Inspector looking for problems in sewer
![](https://waterhistoryphl.org/wp-content/uploads/DU04_20050070034.jpg?w=300)
Sewer crawler Tom Cross, heading down the manhole at 26th and Grays Ferry, 1982
![](https://waterhistoryphl.org/wp-content/uploads/DU04A_20050070042.jpg?w=300)
General view of sewer looking up manhole as other Water Dept. personnel look down.
![](https://waterhistoryphl.org/wp-content/uploads/DU03_20050070033.jpg?w=300)
Joe Cerrone, Inspector, Industrial Waste Unit, PWD, enters storm drain to search for source of oil spill, 1989
![](https://waterhistoryphl.org/wp-content/uploads/DU02_20050070039.jpg?w=300)
Norman Lofton enters manhole at Ditman and Sheffield, 1987
![](https://waterhistoryphl.org/wp-content/uploads/DU01_20050070043.jpg?w=300)