 
		 
		 
		Mill Creek Sewer under construction, 1883
 
		Frankford Creek: Sad History of an Urban Stream title page
 
		Bridge Street, intermediate pier, ca. 1896 [Detail]
 
		Bridge Street Draw, intermediate pier, ca. 1896 [detail]
 
		Bridge Street Draw, intermediate pier, ca. 1896
 
		Bridge Street Draw, construction of piers, ca. 1896
 
		Bridge Street Draw, Cofferdam, ca 1896 [Detail]
 
		Bridge Street Draw, looking north, ca. 1896
 
		Bridge Street Draw, Cofferdam, ca. 1896
