The table below lists the dates and dimensions (in metric) of each of the lock and weir structures on the River Lea and Lee Navigation.  A blank space indicates that the date or dimension is not (yet) known.  I hope that further research will enable me to fill in at least some of the spaces.

Where a series of different names were given to a structure, for simplicity I have only used one, (usually the modern version). The current details of the structure are shown in bold. The use of italics indicates a reasonable doubt concerning the accuracy of a date or dimension. Some of the 17th and 18th century dates are educated guesses based on contemporary documents or are derived from statements made in the Trust or Conservancy minutes.   A plus (+) sign after a date means that the change took place after the year shown.

The details for each particular lock are repeated on the relevant page.

Click here to return to imperial dimensions

Lock State Date Length Length - Working Distance Width Fall Removed or bypassed
Upper Turnpike Extant c1658 ~ ~   0.610 1769
Lower Turnpike Extant c1658 ~ ~   0.448 1769
Constans Weir Extant c1658 ~ ~   0.570 1769
Constans Weir Rebuilt 1750 ~ ~   0.559 1769
Unnamed Weir     ~ ~   0.559 1769
Hertford Lock Built 1769       2.286 1865
Hertford Lock Rebuilt 1865 27.127 25.908 5.639 2.413  
               
Ware Lock  (bought by New River Co 1738) Built  1658       1.530 1742
Ware Lock  Rebuilt 1742       2.388 1832
Ware Lock (in present position) Built  1832     4.267 2.362 1922
Ware Lock Rebuilt 1922 27.432 26.518 4.877 2.362  
               
Portobello Turnpike Built 1740 ~ ~ 4.572 0.291 c1767
Unnamed Weir (position not known) Extant  1741       0.545 c1767
Ware Weir Extant 1725 ~ ~   0.838  
               
Hardmead (Dolemead) Lock Extant  1780         1858
Hardmead Lock Rebuilt 1858 28.118 26.518 4.877 1.651  
               
Amwell Marsh Lock Extant 1772         1857
               
Stanstead Turnpike Built 1743 ~ ~ 4.572 2.057 c1767
Stanstead Weir Extant 1725 ~ ~   1.067 c1767
Stanstead Old Lock Built 1767         1857
Stanstead Lock (in present position) Built 1857 27.127 25.908 4.877 2.540  
               
Mr Field's Lower Weir Extant  1725 ~ ~   1.067 1767
Mr Archer's Weir Extant  1725 ~  ~   0.305 1767
Feildes Weir Lock Built 1767     4.089 1.118 1922
Feildes Weir Lock Rebuilt 1922 27.432 26.518 4.877 1.092  
               
Mr Plummer's Weir Extant 1741 ~ ~   0.533  
Dobbs Turnpike Built 1758 ~ ~   0.533 1767
Dobbs Weir Lock (in present position) Built  1767     4.039 1.549 1922
Dobbs Weir Lock Rebuilt 1922 27.432 26.518 4.877 1.549  
               
Carthagena Turnpike Built 1741 ~ ~ 5.486   1767
Carthagena Lock Built 1767       0.914 1833
Carthagena Lock Rebuilt 1827     4.140 1.499 1922
Carthagena Lock Rebuilt 1922 27.432 26.518 4.877 1.524  
               
Kings Weir   Extant 1741 ~ ~   3.048  
Kings Weir Lock Built 1780         1806
Kings Weir Lock Rebuilt 1806         1833
Kings Weir (to Old River Lea) Rebuilt   ~ ~      
               
Aqueduct Lock Built 1768     4.115 1.651 1922
Aqueduct Lock Rebuilt 1922 27.432 26.518 4.877 1.676  
               
Cheshunt Lock Built 1768     4.089 1.549 1922
Cheshunt Lock Rebuilt 1922 27.432 26.518 4.877 1.549  
               
Walton's Weir (on Old River Lea) Extant 1741 ~ ~   2.515  
Sir W Wake's Weir (on Old River Lea) Built  1590 ~ ~   1.219  
               
Waltham Common Lock Built 1768     4.064 1.473 1922
Waltham Common Lock Rebuilt 1922 27.432 26.518 4.877 1.473  
               
Edmonsey (Powder Mill) Lock Built 1806       0.762 c1975
Gunpowder Mills Lock (East) Built 1878 12.192 10.668 3.124 1.829 Extant
Gunpowder Mills Lock (West) Built 1893 18.593 16.307 3.759 1.829 Extant
Waltham Pound Lock Built 1576 21.336   6.756 1.067 1592
               
Waltham Town Lock Built  1768     4.089 1.295 1922
Waltham Town Lock (in present position) Built  1922 27.432 26.518 4.877 1.295  
               
Lower Island Lock (Gunpowder Mills) Built c1888       1.143 c1975
               
Rammey Marsh Lock Built  1768         1864
Rammey Marsh Lock (in present position) Rebuilt 1864     4.877 0.991 1902
Rammey Marsh Lock Rebuilt 1902 27.432 26.518 4.978 0.991  
               
Newmans Weir or  Sothebys Upper Weir Extant  1725 ~ ~   2.972  
               
Enfield Lock Extant 1725         1768
Enfield Lock Rebuilt 1768     4.064 2.870 1922
Enfield Lock Rebuilt 1922 27.432 26.518 4.877 2.870  
               
Sotheby's Lower Weir (on Old River Lea) Extant 1725 ~ ~   2.515 1770
               
Ponders End Lock Built 1770         1858
Ponders End Lock Rebuilt 1858 27.432 26.213 4.877 2.235  
Ponders End Lock (West chamber) Duplicated 1959 27.584 25.603 5.740 2.235  
               
Ponders End Halflock Built 1770         1852
               
Picketts Lock Built 1770         1861
Picketts Lock Rebuilt 1861     5.486 1.575 1902+
Picketts Lock Rebuilt 1902+ 27.432 26.213 5.740 1.956  
               
Flanders Weir (On Old River Lea) Extant 1701 ~ ~   3.226 1776
Bleak Hall Lock Built  1776         1863
Cooks Weir (On Old River Lea) Extant  1725 ~ ~   1.219 1776
Edmonton Lower Lock Built 1776         1851
Boltons Weir Extant  1725 ~ ~   1.143  
               
Stonebridge Lock Built 1776         1853
Stonebridge Lock Rebuilt 1853     5.486 2.007 1902+
Stonebridge Lock Rebuilt 1902+ 27.432 26.518 5.639 1.981  
Stonebridge Lock (East chamber) Duplicated 1961          
               
France Weir (on Old River Lea) Extant 1725 ~ ~      
Tottenham or Hilliards Turnpike (on Old River Lea) Extant 1741 ~ ~   1.676  
               
Tottenham Lock Built 1776         1845
Tottenham Lock Resited  1845     5.486 2.057 1902+
Tottenham Lock Rebuilt 1902+ 29.261 27.432 5.639 2.057  
Tottenham Lock (East chamber) Duplicated 1960          
               
Hackney Waterworks Pound Lock  (Tidal) Built 1761          
Lea Bridge Lock Built 1769         1853
Pond Lane Lock Rebuilt 1865         1872
Pond Lane Flood Gates Re- use 1872     6.401 ~
1931
Pond Lane Flood Gates Guillotine Built 1931 ~ ~   ~  
               
Hackney Brick Cistern Lock Built  1769         1862
               
Old Ford Lock (Tidal) Built  1769          
Old Ford Lock (Tidal) Rebuilt 1851     4.801 3.073 1902+
Old Ford Locks (Tidal) Duplicated 1864          
Old Ford - Large (Tidal until 2000) Rebuilt 1902+ 27.432 26.111 5.639 3.073  
Old Ford - Small (Tidal until 2000) (West) Duplicated 1935 27.432 26.111 5.639    
               
Carpenters Road Radial Lock  (Tidal until 2009)   1933 28.042 27.432 6.096 ~  
               
City Road Lock (Tidal until 2009)   1933 28.956 26.518 6.096    
               
Marshgate Lock Built 1847         1935
               
Bow Tide Gate Recorded 1307       Tidal  
Bow Pound Lock (Tidal) Built 1847       Tidal 1900
Bow (West) (Tidal) Rebuilt 1900 28.499 26.518 6.096 Tidal  
Bow (East) (Tidal) Duplicated 1931 28.499 26.518 6.096 Tidal  
               
Bromley Built 1770   28.956 6.096    
               
Britannia Built 1859     6.096    
Britannia (Conversion to Guillotine)     ~ ~      
               
Limehouse Lock Built 1768       Tidal 1865
Limehouse Lock Rebuilt 1865 27.381 25.603 5.995 Tidal 1968

 

This site was last updated 24/11/09