Category:Swamp Locks

Media in category "Swamp Locks"

The following 15 files are in this category, out of 15 total.

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  'Keepers of the Gate' historical plaque near Tremont Gatehouse; Lowell, MA; 2012-05-19.JPG 4,608 × 3,456; 3.96 MB
  
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  LOCK GATE AND CONTROL VALVE MECHANISMS BETWEEN UPPER AND LOWER CHAMBERS- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-17.tif 4,978 × 3,569; 16.95 MB
  
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  LOCK GATES AT THE SWAMP LOCKS, SEPARATING THE UPPER AND LOWER LOCK CHAMBERS, SHOWING PADDLE VALVES, LOOKING WEST- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack HAER MASS,9-LOW,9B-12.tif 3,567 × 5,000; 17.01 MB
  
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  OPERATOR OF CONTROL ROOM, SWAMP LOCKS GATEHOUSE- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-16.tif 3,531 × 4,953; 16.68 MB
  
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  PAWTUCKET CANAL- SWAMP LOCKS, TAKEN WHILE CANAL SYSTEM DRAINED- W. Richard Ansteth, Photographer 1975 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, HAER MASS,9-LOW,9B-5.tif 5,000 × 3,977; 18.97 MB
  
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  SWAMP LOCKS AND DAM LOOKING AT UPSTREAM FACE FROM THE SOUTH SIDE OF SWAMP LOCKS BASIN- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex HAER MASS,9-LOW,9B-8.tif 5,000 × 3,580; 17.07 MB
  
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  SWAMP LOCKS AND DAM, LOOKING WEST AT THE DOWNSTREAM SIDE; LOCK CHAMBERS ARE IN THE TREES AT LEFT- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, HAER MASS,9-LOW,9B-10.tif 5,000 × 3,611; 17.22 MB
  
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  SWAMP LOCKS FROM UPSTREAM, LOOKING EAST- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-6.tif 5,000 × 3,596; 17.15 MB
  
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  SWAMP LOCKS LOOKING EAST ACROSS SWAMP LOCKS BASIN- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-7.tif 5,000 × 3,578; 17.06 MB
  
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  SWAMP LOCKS VIEWED FROM ACROSS THE ENTRANCE TO THE MERRIMACK CANAL, LOOKING SOUTHEAST- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex HAER MASS,9-LOW,9B-9.tif 5,000 × 3,558; 16.97 MB
  
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  SWAMP LOCKS, SOUTHERN END OF THE GATEHOUSE, LOCK ENTRANCE IN FOREGROUND- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-13.tif 5,000 × 3,581; 17.08 MB
  
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  UPPER LOCK CHAMBER OF THE AMP LOCKS LOOKING WEST TOWARD THE UPSTREAM LOCK GATES- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-11.tif 3,631 × 5,000; 17.32 MB
  
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  WORM AND SPUR GEARS FOR CONTROLLING THE PADDLE VALVE IN ONE OF THE GATES BETWEEN THE UPPER AND LOWER CHAMBERS- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals HAER MASS,9-LOW,9B-18.tif 4,999 × 3,578; 17.06 MB
  
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  WORM AND SPUR GEARS FOR CONTROLLING THE PADDLE VALVE IN ONE OF THE GATES BETWEEN THE UPPER AND LOWER CHAMBERS- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals HAER MASS,9-LOW,9B-20.tif 5,000 × 3,581; 17.08 MB
  
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  WORM AND SPUR GEARS FOR CONTROLLING THE PADDLE VALVE IN ONE OF THE LOCK GATES WHICH SEPARATES UPPER AND LOWER CHAMBERS- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and HAER MASS,9-LOW,9B-19.tif 5,000 × 3,585; 17.1 MB