Typical Pressure Tunnel Construction Shaft [Catskill System.]
Drilling and Mucking Bench [of] Lower Half of Tunnel [Catskill System.]
Bonticou Grade Tunnel Portal and Bonticou Crag [Catskill System.]
Yonkers Pressure Tunnel, 16-Feet, 7 Inches in Diameter [Catskill System.]
By-Pass Aqueduct Around Kensico Reservoir 11 Feet in Diameter [Catskill System.]
Typical Stages of Cut-and-Cover Construction [Catskill System.]
Hudson Pressure Tunnel, Showing Exploratory Borings [Catskill System.]
Tunnel Drills Working on Bench After Drilling Heading [Catskill System.]
Bryn Mawr Connection Chamber at Commencement of Yonkers Pressure Tunnel [Catskill System.]
Bucket Used to Lower Men and Materials During Sinking of Tunnel Shafts [Catskill System.]
Interior of Typical City Tunnel Shaft Chamber [Catskill System.]
Typical Concrete-Stone Steel Pipe Siphon Chambers - Elmsford Siphon [Catskill System.]
Kensico Aerator and Screen Chamber [Catskill System.]
New Croton Aqueduct - Cast-Iron Section Lining [Croton System.]
Rondout Valley Looking North [Catskill System.]
Kensico Dam, Looking North-West [Catskill System.]
Indian Brook Siphon and North Siphon Chamber [Catskill System.]
Dividing Weir and Dike, Ashokan Reservoir [Catskill System.]
Ashokan Aerator and Screen Chamber [Catskill System.]
Kensico Dam From South-West [Catskill System.]