 
		 
		 
		Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010
 
		Down Under, Part 2: Beaver Creek as it appears today
 
		Plan and profile of proposed Delaware Seventh St. Sewer, 1850
 
		Plan of Pine Street Sewer, 1830
 
		Mill Creek Sewer under construction, 1883
 
		Thomas Run sewer outlet at Cobbs Creek
 
		Thomas Run sewer outlet during construction
 
		69th St. Sewer and Culvert across Lansdowne AVe.
 
		Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
 
		Bingham Street Sewer, East of Tacony Creek, 1921
