Category:Historic American Engineering Record images of Lowell, Massachusetts

Media in category "Historic American Engineering Record images of Lowell, Massachusetts"

The following 126 files are in this category, out of 126 total.

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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 118, Drawing 272)-ca. 1825-PROPOSAL OF BUILDING EASTERN CANAL - Eastern Canal, Bridge and Armory Streets HAER MASS,9-LOW,14-2.tif 5,000 × 3,257; 15.53 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 123, Drawing 2797)-ca. 1830-PROJECTED PLAN OF THE WESTERN AND LAWRENCE CANALS, MILLS, AND STREETS - Western HAER MASS,9-LOW,12-1.tif 5,000 × 3,219; 15.35 MB
  
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  1836 map of canal system in Lowell, Massachusetts.jpg 500 × 376; 114 KB
  
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  1841 map of Lowell, Massachusetts.tiff 5,000 × 3,322; 15.84 MB
  
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  1846 sketch of proposed canal from Pawtucket Dam to Western Canal; Lowell, MA.tiff 5,000 × 3,208; 15.3 MB
  
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  1876 bird's eye view of Lowell, Massachusetts.tiff 5,000 × 3,240; 15.45 MB
  
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  GENERAL VIEW OF BOARDINGHOUSES, FROM SOUTH - New Block, Dutton Street, Lowell, Middlesex County, MA HABS MASS,9-LOW,19-1.tif 5,000 × 3,920; 18.69 MB
  
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  GENERAL VIEW OF THE CANAL, TAKEN WHILE, THE CANAL SYSTEM WAS DRAINED- W. Richard Ansteth, Photographer 1975 - Eastern Canal, Bridge and Armory Streets vicinity, Lowell, Middlesex HAER MASS,9-LOW,14-1.tif 5,000 × 3,998; 19.07 MB
  
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  HAMILTON CAN LOOKING DOWNSTREAM TO THE EAST; APPLETON MILLS TO THE LEFT HAMILTON MILLS IN BACKGROUND 1976 - Hamilton Canal, Jackson Street vicinity, Lowell, Middlesex County, MA HAER MASS,9-LOW,11-2.tif 3,595 × 5,000; 17.14 MB
  
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  Canal System in Lowell, Massachusetts (evolution).jpg 6,671 × 4,432; 2.87 MB
  
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  Canal system in Lowell, Massachusetts.jpg 6,688 × 4,441; 5.5 MB
  
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  BOAT TUNNEL AND NAVIGATION LOCK FROM THE MERRIMACK RIVER INTO THE NORTHERN CANAL. PART OF THE NORTHERN CANAL GUARD GATES SITE, VIEW IS LOOKING NORTHEAST TO THE CANAL- 1976 - HAER MASS,9-LOW,15-5.tif 5,000 × 3,567; 17.01 MB
  
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  BOAT TUNNEL AND NAVIGATION LOCK FROM THE MERRIMACK RIVER INTO THE NORTHERN CANAL. VIEW IS LOOKING NORTHEAST TO THE CANAL- Jack Boucher, Photographrer 1976 - Northern Canal, HAER MASS,9-LOW,15-6.tif 5,000 × 3,589; 17.12 MB
  
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  CHAIN AND WINDLASS IN GUARD LOCKS LOCK HOUSE. EASTERN OF TWO SETS OF MACHINERY USED TO HELP OPEN UPSTREAM LOCK GATES 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County HAER MASS,9-LOW,9A-38.tif 5,000 × 3,592; 17.13 MB
  
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  INTERIOR OF SWAMP LOCKS GATEHOUSE WITH MANUALLY CONTROLED WEIRS- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-14.tif 3,551 × 4,949; 16.76 MB
  
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  INTERIOR OF SWAMP LOCKS GATEHOUSE WITH MANUALLY CONTROLLED WASTE WEIRS- 1976 - Pawtucket Canal, Swamp Locks, Pawtucket and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,9B-15.tif 3,547 × 4,943; 16.72 MB
  
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  GENERAL VIEW FROM THE SOUTH SHOWING DOWNSTREAM SIDE; GREAT GATE AND DOWNSTREAM LOCK GATES AT LEFT 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-32.tif 5,000 × 3,568; 17.02 MB
  
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  GENERAL VIEW LOOKING NORTH SHOWING SECTION ONCE COVERED BY TREMONT MILLS (now demolished)- 1976 - Western Canal, Pawtucket and Merrimack Canals vicinity, Lowell, Middlesex County, HAER MASS,9-LOW,12-3.tif 5,000 × 3,575; 17.05 MB
  
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  GENERAL VIEW OF LOCK GATES WITH GREAT GATE (FRANCIS GATE) IN BACKGROUND 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-16.tif 3,560 × 5,000; 16.98 MB
  
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  GENERAL VIEW OF THE HAMILTON CANAL TAKEN WHILE THE SYSTEM WAS DRAINED W. Richard Ansteth, Photographer 1975 - Hamilton Canal, Jackson Street vicinity, Lowell, Middlesex County, MA HAER MASS,9-LOW,11-1.tif 5,000 × 3,957; 18.87 MB
  
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  GREAT GATE (FRANCIS GATE) 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-24.tif 3,590 × 5,000; 17.12 MB
  
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  GREAT GATE (FRANCIS GATE) WITH COVERING HOUSE AND BRACES ABOVE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-18.tif 3,587 × 5,000; 17.11 MB
  
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  GREAT GATE (FRANCIS GATE) WITH COVERING HOUSE AND BRACES ABOVE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-20.tif 3,598 × 5,000; 17.16 MB
  
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  GREAT GATE (FRANCIS GATE) WITH COVERING HOUSE AND BRACES ABOVE, SHOWING SLOT FORMED IN THE LOCK CHAMBER FOR THE GATE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County HAER MASS,9-LOW,9A-21.tif 5,000 × 3,603; 17.18 MB
  
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  GREAT GATE FROM UPSTREAM SIDE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-23.tif 5,000 × 3,593; 17.14 MB
  
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  GREAT GATE VIEWED FROM UPSTREAM (NORTH) SIDE SHOWING THE SLOT FORMED IN THE LOCK CHAMBER FOR THE GATE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-22.tif 3,590 × 5,000; 17.12 MB
  
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  GUARD LOCKS GATE HOUSE AND OUTLET SERVICES VIEWED FROM THE DOWNSTREAM (SOUTH) SIDE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-28.tif 5,000 × 3,609; 17.21 MB
  
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  GUARD LOCKS LOCK HOUSE VIEWED FROM THE EAST 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-34.tif 5,000 × 3,583; 17.09 MB
  
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  GUARD LOCKS LOCK HOUSE VIEWED FROM THE SOUTH 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-33.tif 5,000 × 3,591; 17.13 MB
  
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  GUARD LOCKS VIEWED FROM THE NORTHWEST BANK SHOWING UPSTREAM SIDE- GATE HOUSE AT LEFT CENTER, POINT OF ISLAND IN CENTER, AND LOCK HOUSE ON RIGHT 1976 - Pawtucket Canal, Guard HAER MASS,9-LOW,9A-31.tif 5,000 × 3,570; 17.03 MB
  
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  GUARD LOCKS VIEWED FROM THE NORTHWEST BANK- SHOWS UPSTREAM SIDE. GATEHOUSE ON THE LEFT, ISLAND IN THE CENTER, AND LOCK HOUSE ON THE RIGHT 1976 - Pawtucket Canal, Guard Locks, HAER MASS,9-LOW,9A-15.tif 5,000 × 3,572; 17.04 MB
  
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  GUARD LOCKS VIEWED FROM THE SOUTH SHOWING DOWNSTREAM SIDE- GREAT GATE ON LEFT, GATEHOUSE ON RIGHT 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-25.tif 5,000 × 3,589; 17.12 MB
  
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  GUARD LOCKS VIEWED FROM THE SOUTH, WITH GREAT GATE AND LOCK GATES ON THE LEFT, GATE HOUSE ON THE RIGHT 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-26.tif 5,000 × 3,539; 16.88 MB
  
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  DETAIL OF MA-2A-36 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-37.tif 5,000 × 3,573; 17.04 MB
  
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  EASTERN CANAL LOOKING SOUTHEAST FROM THE BOOTT MILLS (ON THE LEFT), WITH THE MASSACHUSETTS MILLS IN THE BACKGROUND- 1976 - Eastern Canal, Bridge and Armory Streets vicinity, HAER MASS,9-LOW,14-4.tif 3,559 × 5,000; 16.97 MB
  
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  EASTERN CANAL SHOWING WASTEWAY GATEHOUSE- W. Richard Ansteth, Photographer 1975 - Eastern Canal, Bridge and Armory Streets vicinity, Lowell, Middlesex County, MA HAER MASS,9-LOW,14-3.tif 5,000 × 4,013; 19.14 MB
  
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  ENTRANCE TO THE FEEDER, TAKEN WHEN THE CANAL SYSTEM WAS DRAINED- W. Richard Ansteth, Photographer 1975 - Moody Street Feeder, Moody Street vicinity, Lowell, Middlesex County, MA HAER MASS,9-LOW,16-1.tif 5,000 × 4,031; 19.22 MB
  
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  HOUSE COVERING GREAT GATE AT THE GUARD DOCKS SHOWING DIAGONAL BRACES FOR TIMBER FRAME SUPPORTING THE GATE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-19.tif 3,567 × 5,000; 17.01 MB
  
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  INSCRIPTION ON THE GUARD LOCKS GATE HOUSE, EAST GABLE END 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-30.tif 5,000 × 3,588; 17.11 MB
  
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  LAWRENCE DAM LOOKING NORTH FROM UPSTREAM- 1976 - Lawrence Canal, Lawrence Dam, Lawrence and Merrimack Canals, Lowell, Middlesex County, MA HAER MASS,9-LOW,13A-3.tif 5,000 × 3,586; 17.1 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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  LOCK GATES VIEWED FROM DOWNSTREAM SIDE WITH GREAT GATE (FRANCIS GATE) IN BACKGROUND 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-17.tif 3,590 × 5,000; 17.12 MB
  
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  LOWER LOCKS AND DAM VIEWED FROM ACROSS THE CONCORD RIVER LOOKING WEST. LOCK CHAMBER VISIBLE THROUGH TREES IN LEFT CENTER- 1976 - Lowell Canal System, Merrimack and Concord Rivers, HAER MASS,9-LOW,8-31.tif 5,000 × 3,574; 17.04 MB
  
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  LOWER LOCKS AND DAM VIEWED FROM THE EAST LOOKING WEST. LOCK CHAMBER VISIBLE THROUGH TREES AT LEFT- 1976 - Lowell Canal System, Merrimack and Concord Rivers, Lowell, Middlesex HAER MASS,9-LOW,8-30.tif 5,000 × 3,578; 17.06 MB
  
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  MASSACHUSETTS WASTEWAY GATEHOUSE, SOUTH FACE, SHOWING EASTERN CANAL IN FOREGROUND- 1976 - Eastern Canal, Bridge and Armory Streets vicinity, Lowell, Middlesex County, MA HAER MASS,9-LOW,14-5.tif 5,000 × 3,558; 16.97 MB
  
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  NEOCLASSICAL HOUSE ON ANDOVER STREET, IN BELVEDERE SECTION OF LOWELL- 1976 - Lowell Canal System, Merrimack and Concord Rivers, Lowell, Middlesex County, MA HAER MASS,9-LOW,8-29.tif 5,000 × 3,573; 17.04 MB
  
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  ONE OF THE LOWER LOCK GATES AT THE GUARD LOCKS VIEWED FROM THE WEST BANK LOOKING EAST 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-27.tif 3,605 × 5,000; 17.19 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 VIEWED FROM THE ISLAND OF THE GUARD LOCKS, LOOKING TO THE NORTH, WITH LOCK HOUSE ON LEFT 1976 - Pawtucket Canal, Pawtucket Falls vicinity, Lowell, Middlesex County, HAER MASS,9-LOW,9-3.tif 5,000 × 3,598; 17.16 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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  PAWTUCKET DAM AND GATEHOUSE VIEWED FROM NORTH SIDE OF MERRIMACK RIVER LOOKING EAST 1976 - Lowell Canal System, Pawtucket Dam, Merrimack River,above Pawtucket Falls, Lowell, HAER MASS,9-LOW,8A-12.tif 5,000 × 3,527; 16.82 MB
  
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  PENSTOCK ENTRANCE WITH RACK AT THE APPLETON MILLS 1976 - Hamilton Canal, Jackson Street vicinity, Lowell, Middlesex County, MA HAER MASS,9-LOW,11-4.tif 5,000 × 3,620; 17.26 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 106, Drawing 599, now held at the Lowell Technological Institute, Lowell, MA) A PLAN OF THE LAND ON SOUTH HAER MASS,9-LOW,9A-13.tif 5,000 × 3,318; 15.82 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 106, Drawing 600, now held at the Lowell Technological Institute, Lowell, MA) A PLAN OF THE LAND ON THE HAER MASS,9-LOW,9A-14.tif 5,000 × 3,205; 15.28 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 114, Drawing 1) PLAN OF PROPOSED CANAL FROM PAWTUCKET DAM TO WESTERN CANAL, OCTOBER 1839 - Northern Canal, HAER MASS,9-LOW,15-1.tif 5,000 × 3,276; 15.62 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 115, Drawing 83)-ca. 1832-1848-SITE SECTION OF THE GUARD LOCKS SHOWING ORIGINAL GATE HOUSE and LOCK KEEPER HAER MASS,9-LOW,9A-12.tif 5,000 × 3,236; 15.43 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 117, Drawing 155) SECTION OF THE MOODY STREET FEEDER, DECEMBER 30, 1847 - Moody Street Feeder, Moody Street HAER MASS,9-LOW,16-2.tif 5,000 × 3,311; 15.79 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 117, Drawing 282) GUARD LOCKS, PAWTUCKET CANAL OCTOBER 20, 1846 (Site section and plan) - Pawtucket Canal, HAER MASS,9-LOW,9A-9.tif 5,000 × 3,141; 14.98 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 117, Drawing 283) GUARD LOCKS, PAWTUCKET CANAL OCTOBER 15, 1846 (Site section and plan) - Pawtucket Canal, HAER MASS,9-LOW,9A-11.tif 3,203 × 5,000; 15.28 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 117, Drawing 290) SHEERS FOR HOLDING UP PAWTUCKET GUARD GATES, JULY 24, 1850 - Pawtucket Canal, Guard Locks HAER MASS,9-LOW,9A-8.tif 5,000 × 3,176; 15.15 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 117, Drawing 291) GATE FOR PAWTUCKET GUARD LOCKS, JULY 16, 1850 - Pawtucket Canal, Guard Locks, Lowell, HAER MASS,9-LOW,9A-10.tif 5,000 × 3,197; 15.25 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 117, Drawing 341) PLAN AND ELEVATION OF PIPEING (sic) TO RAISE AND LOWER GUARD LOCKS HYDRAULIC GATES, HAER MASS,9-LOW,9A-1.tif 3,162 × 5,000; 15.08 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 118, Drawing 192) PLAN OF PROPOSED BRANCH CAN FROM THE NORTHERN TO THE MERRIMACK CANAL, FEBRUARY 4, 1847 - HAER MASS,9-LOW,15-3.tif 5,000 × 3,288; 15.68 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 118, Drawing 198) SKETCH OF THE PROPOSED FEEDER FROM THE NORTHERN CANAL TO THE YARD OF THE MERRIMACK MFG. HAER MASS,9-LOW,15-4.tif 3,323 × 5,000; 15.85 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 118, Drawing 236) MIDDLESEX COMPANY DAM ACROSS THE CONCORD RIVER, JULY 8, 1871 - Lowell Canal System, HAER MASS,9-LOW,8-14.tif 3,283 × 5,000; 15.66 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 118, Drawing 261) PLAN AND SECTION OF THE AMP LOCKS, JANUARY 1840 - Pawtucket Canal, Swamp Locks, Pawtucket HAER MASS,9-LOW,9B-2.tif 5,000 × 3,251; 15.5 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 118, Drawing 265) SKETCH OF THE WESTERN CANAL WIDENED TO 60 FEET TOGETHER WITH THE FEEDER SUGGESTED IN HAER MASS,9-LOW,12-2.tif 5,000 × 3,160; 15.07 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 118, Drawing 340) SECTION OF THE CONCORD RIVER DAM, AUGUST 11, 1841 - Lowell Canal System, Merrimack and HAER MASS,9-LOW,8-15.tif 5,000 × 3,256; 15.53 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 123, Drawing 2792)-ca. 1822-1825-TOPOGRAPHIC PLAN OF MILLS AND WORKER HOUSING ON THE SOUTH SIDE OF THE LOWER HAER MASS,9-LOW,9-1.tif 3,218 × 5,000; 15.35 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 123, Drawing 2827) PROJECTED PLAN OF WESTERN AND LAWRENCE CANALS, MILLS, HOUSING, AND STREETS, JANUARY 1826 HAER MASS,9-LOW,8-19.tif 5,000 × 3,146; 15 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 123, Drawing 2847) PLAN OF THE FACTORIES, HOUSES, andc. BELONGING TO THE MIDDLESEX COMPANY, NOVEMBER 1833 - HAER MASS,9-LOW,8-12.tif 5,000 × 3,285; 15.66 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 124, Drawing 2915)-ca. 1830-PLAN OF LOCKS, MACHINE SHOP, APPLETON AND LOWELL COMPANIES WITH CANALS - HAER MASS,9-LOW,9B-1.tif 3,247 × 5,000; 15.49 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 128, Drawing 1773) SKETCH OF PAWTUCKET DAM (PLAN SHOWING COFFER DAMS) FEBRUARY 1875 - Lowell Canal System, HAER MASS,9-LOW,8A-10.tif 5,000 × 3,259; 15.54 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 128, Drawing 1784) SECTIONS OF THE OLD AND NEW DAM, OCTOBER 18-19, 1875 - Lowell Canal System, Pawtucket HAER MASS,9-LOW,8A-9.tif 3,193 × 5,000; 15.23 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 141, Drawing 25) -no date-SWAMP LOCKS AND LOCK CHAMBERS - Pawtucket Canal, Swamp Locks, Pawtucket and HAER MASS,9-LOW,9B-3.tif 5,000 × 3,200; 15.26 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 144, Drawing 13) SECTIONS OF LOCK CHAMBERS AT SWAMP LOCKS DAM, APRIL 1890 - Pawtucket Canal, Swamp Locks, HAER MASS,9-LOW,9B-4.tif 5,000 × 3,218; 15.35 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 159 Drawing 9)-May 1902 corrected to May 1921 -PLAN OF THE CANAL SYSTEM BELONGING TO THE PROPRIETORS OF THE HAER MASS,9-LOW,8-2.tif 3,220 × 5,000; 15.36 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 159, Drawing 3)-May 1902, corrected to May 1921 -PLAN OF CANAL SYSTEM BELONGING TO THE PROPRIETORS OF THE HAER MASS,9-LOW,8-8.tif 3,251 × 5,000; 15.5 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 159, Drawing 4)-May 1902, corrected to May 1921 -PLAN OF CANAL SYSTEM BELONGING TO THE PROPRIETORS OF THE HAER MASS,9-LOW,8-7.tif 3,206 × 5,000; 15.29 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 159, Drawing 5)-May 1902, corrected to May 1921 -PLAN OF CANAL SYSTEM BELONGING TO THE PROPRIETORS OF THE HAER MASS,9-LOW,8-6.tif 3,310 × 5,000; 15.79 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 159, Drawing 6)-May 1902, corrected to May 1921 -PLAN OF CANAL SYSTEM BELONGING TO THE PROPRIETORS OF THE HAER MASS,9-LOW,8-5.tif 5,000 × 3,247; 15.49 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 159, Drawing 7)-May 1902, corrected to May 1921 -PLAN OF THE CANAL SYSTEM BELONGING TO THE PROPRIETORS OF HAER MASS,9-LOW,8-4.tif 3,226 × 5,000; 15.39 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 159, Drawing 8)-May 1902, corrected to May 1921 -PLAN OF CANAL SYSTEM BELONGING TO THE PROPRIETORS OF THE HAER MASS,9-LOW,8-3.tif 3,351 × 5,000; 15.98 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 160, Drawing 4) PLAN OF SLUICES AT OLD GUARD LOCKS, FEBRUARY, 1902 - Pawtucket Canal, Guard Locks, Lowell, HAER MASS,9-LOW,9A-2.tif 5,000 × 3,135; 14.95 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 165, Drawing 2)-February 1933-PART OF THE CITY SHOWING MILLS AND CANALS; SHOWS ENTIRE LOWER SYSTEM WITH ALL HAER MASS,9-LOW,8-9.tif 3,375 × 5,000; 16.1 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 165, Drawing 43) A PLAN OF CHELMSFORD SURVEYED NOVEMBER 1792 BY FREDERICK FRENCH - Lowell Canal System, HAER MASS,9-LOW,8-10.tif 3,202 × 5,000; 15.27 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 165, Drawing 7) PLAN OF SUNDRY FARMS, andc. AT PAWTUCKET IN THE TOWN OF CHELMSFORD, 1821 - Lowell Canal HAER MASS,9-LOW,8-17.tif 5,000 × 3,254; 15.52 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf PH-20, Drawing 2) CYLINDER FOR HYDRAULIC LIFTS AT THE GUARD GATES OF PAWTUCKET CANAL, APRIL 19, 1870 - HAER MASS,9-LOW,9A-5.tif 5,000 × 3,219; 15.35 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf PH-20, Drawing 6) GUARD SLUICES OF PAWTUCKET CANAL AS RECONSTRUCTED IN 1870, 1870 (bottom half) - Pawtucket HAER MASS,9-LOW,9A-3.tif 5,000 × 3,574; 17.04 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf PH-20, Drawing 6) GUARD SLUICES OF PAWTUCKET CANAL AS RECONSTRUCTED IN 1870, 1870 (top half) - Pawtucket HAER MASS,9-LOW,9A-4.tif 5,000 × 3,341; 15.93 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf PH-20, Drawing 76-A) PROPOSED IMPROVEMENTS AT THE GUARD LOCKS OF THE PAWTUCKET CANAL, APRIL 19, 1870 - HAER MASS,9-LOW,9A-6.tif 5,000 × 3,306; 15.77 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandV, Shelf 128, Drawing 1795) SKETCH OF PAWTUCKET DAM (HISTORIC DEVELOPMENT PLAN AND SECTIONS) MARCH 1923 - Lowell HAER MASS,9-LOW,8A-11.tif 5,000 × 3,219; 15.35 MB
  
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  Photocopy of a drawing (original in the Collection of the Proprietors of the Locks and Canals on the Merrimack River, -hereafter PLandC- Lowell, MA)-April 1833-LAWRENCE HAER MASS,9-LOW,8-1.tif 3,227 × 5,000; 15.39 MB
  
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  Photocopy of a drawing (original in the Collection ot the PLandC, Shelf 128, Drawing 1766) PLAN OF PART OF THE MERRIMACK RIVER (PLAN OF DAM), FEBRUARY 1833 - Lowell Canal System, HAER MASS,9-LOW,8A-8.tif 5,000 × 3,140; 14.97 MB
  
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  Photocopy of a drawing, (original in the Collection of the PLandC, Indenture Drawing) MASSACHUSETTS COTTON MILLS, MARCH 1, 1839 - Lowell Canal System, Merrimack and Concord Rivers HAER MASS,9-LOW,8-26.tif 3,314 × 5,000; 15.8 MB
  
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  Photocopy of a photograph (original in the Collectiom of the PLandC) DAM AT THE HEAD OF PAWTUCKET FALLS, JULY 30, 1875 - Lowell Canal System, Pawtucket Dam, Merrimack River,above HAER MASS,9-LOW,8A-3.tif 5,000 × 3,626; 17.29 MB
  
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  Photocopy of a photograph (original in the Collection of the PLandC) DAM AT THE HEAD OF PAWTUCKET FALLS, AUGUST 31, 1875 - Lowell Canal System, Pawtucket Dam, Merrimack River HAER MASS,9-LOW,8A-2.tif 5,000 × 3,515; 16.76 MB
  
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  Photocopy of a photograph (original in the Collection of the PLandC) DAM AT THE HEAD OF PAWTUCKET FALLS, SEPTEMBER 20, 1875 - Lowell Canal System, Pawtucket Dam, Merrimack River HAER MASS,9-LOW,8A-1.tif 3,562 × 5,000; 16.99 MB
  
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  Photocopy of a photograph (original in the Collection of the PLandC) DAM AT THE HEAD OF PAWTUCKET, JULY 30, 1875 - Lowell Canal System, Pawtucket Dam, Merrimack River,above HAER MASS,9-LOW,8A-5.tif 3,607 × 5,000; 17.2 MB
  
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  Photocopy of a photograph (original in the Collection of the PLandC) DAM AT THE HEAD OF PAWTUCKET, JUNE 8, 1875 - Lowell Canal System, Pawtucket Dam, Merrimack River,above HAER MASS,9-LOW,8A-4.tif 5,000 × 3,530; 16.83 MB
  
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  Photocopy of a photograph (original in the Collection of the PLandC)DAM AT THE HEAD OF PAWTUCKET, AUGUST 28, 1875 - Lowell Canal System, Pawtucket Dam, Merrimack River,above HAER MASS,9-LOW,8A-6.tif 5,000 × 3,594; 17.14 MB
  
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  Photocopy of a photograph (original in the Collection of the PLandC)DAM AT THE HEAD OF PEWTUCKET FALLS, SEPTEMBER 11, 1875 - Lowell Canal System, Pawtucket Dam, Merrimack River HAER MASS,9-LOW,8A-7.tif 5,000 × 3,989; 19.02 MB
  
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  SERVICE OUTLETS OF GUARD LOCK GATE HOUSE, CURRENT RUNS TO RIGHT FORMING THE MAIN FLOW OF THE PAWTUCKET CANAL 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-29.tif 5,000 × 3,600; 17.17 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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  TWO TAILRACE OUTLETS FROM THE MIDDLESEX MILLS, LOCATED ON EAST BANK OF THE CONCORD RIVER. MIDDLESEX MILLS HAVE BEEN DEMOLISHED- 1976 - Lowell Canal System, Merrimack and Concord HAER MASS,9-LOW,8-32.tif 5,000 × 3,565; 17 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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  WALL OF THE NAVIGATION LOCK AT THE ENTRANCE TO THE NORTHERN CANAL LOOKING NORTH- 1976 - Northern Canal, Pawtucket and Ford Streets vicinity, Lowell, Middlesex County, MA HAER MASS,9-LOW,15-7.tif 5,000 × 3,591; 17.13 MB
  
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  WINDLASS ON THE EASTERN OF THE TWO DOWNSTREAM LOCK GATES AT THE GUARD LOCKS, USED TO OPEN OR CLOSE A VALVE 1976 - Pawtucket Canal, Guard Locks, Lowell, Middlesex County, MA HAER MASS,9-LOW,9A-36.tif 3,586 × 5,000; 17.1 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
  
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  INTERIOR VIEW OF THE GUARD LOCKS LOCK HOUSE- CLOSED LOCK GATES AND TWO SETS OF MACHINERY TO ASSIST IN OPERATING THEM. VIEW FROM THE FAST END OF THE BUILDING LOOKING WEST 1976 - HAER MASS,9-LOW,9A-35.tif 3,569 × 5,000; 17.02 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Indenture Drawing) BOOTT MILLS, NOVEMBER 16, 1835 - Lowell Canal System, Merrimack and Concord Rivers, Lowell, HAER MASS,9-LOW,8-25.tif 5,000 × 3,250; 15.5 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Indenture Drawing) MERRIMACK MANUFACTURING COMPANY, MAY 3, 1826 - Lowell Canal System, Merrimack and Concord HAER MASS,9-LOW,8-22.tif 3,246 × 5,000; 15.48 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Indenture Drawing) Suffolk Manufacturing Company, JANUARY 1. 1832 - Lowell Canal System, Merrimack and Concord HAER MASS,9-LOW,8-23.tif 3,280 × 5,000; 15.64 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Indenture Drawing) TREMONT MILLS, JULY 1, 1832 - Lowell Canal System, Merrimack and Concord Rivers, Lowell, HAER MASS,9-LOW,8-24.tif 3,257 × 5,000; 15.53 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Plan Book A, p. 15-ca. 1833-LOWER WESTERN AND LAWRENCE CANALS AND LAWRENCE MILL - Lowell Canal System, Merrimack HAER MASS,9-LOW,8-21.tif 5,000 × 3,236; 15.43 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Plan Book A, pp.26-27)-ca. 1833-HAMILTON CANAL, PENSTOCK HURD'S CANAL, AND HAMILTON MANUFACTURING CO.; LAND IN HAER MASS,9-LOW,8-20.tif 5,000 × 3,248; 15.49 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 123, Drawing 2799) PLAN OF SUNDRY ROADS AND STREETS IN LOWELL, 1828; INCLUDING PARTS OF THE LOWER PAWTUCKET HAER MASS,9-LOW,8-16.tif 5,000 × 3,296; 15.72 MB
  
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  Photocopy of a drawing (original in the Collection of the PLandC, Shelf 165, Drawing 40) PLAN OF 'SPEEN'S BROOK' IN CHELMSFORD, 1792 (copy of the original) - Lowell Canal System, HAER MASS,9-LOW,8-11.tif 3,184 × 5,000; 15.18 MB