Torresdale Conduit work gang, 12/18/1906 Torresdale Conduit - Grouting Gang near Shaft No. 1 InfrastructureWater Supply A work gang plugging leaks in the 10’7” diameter Torresdale Conduit, December 18, 1906. This massive pipeline, 2.5 miles long, was built to carry filtered water from the Torresdale Filters to the Lardner’s Point Pumping Station. Both the filters and the pumping station were the largest of their kind in the world when they were built. Date Created December 18, 1906 Item Type ImagePhotograph Publisher Philadelphia Water Department Topics InfrastructureWater Supply Subjects EngineeringInfrastructurePeoplePublic HealthTechnologyUrban DevelopmentWater SupplyWater TreatmentWorkers Keyword Torresdale Conduit Temporal Coverage December 18, 1906 (Circa) 1900-1910 Format (Medium) Print, Photographic File Size859 kbImage Dimensions2560 x 2427 px Identifier2014.002.0004 Collection Philadelphia Water Department Rights Holder Philadelphia Water Department