Water Conduit Torresdale Filter Plant Philadelphia 



This section is 10 ft. in diameter and 850 ft. long, the water in this conduit being under a 20 ft. head. 

 Thickness at crown 10 inches and at spring 16 inches. 



Mr. John W. Hill, Chtef Engineer of the Bureau of Filtration, City of Philadelphia. 



Mr. Daniel J. McNichol, Contractor. 



"Steelcrete" Expanded Metal used throughout this large filtration. 



