Welland Canal: Difference between revisions
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There have been | There have been four '''Welland Canals''', connecting [[Lake Ontario]] and [[Lake Erie]].<ref name=Seaway1> | ||
{{cite news | {{cite news | ||
| url=http://www. | | url=http://www.greatlakes-seaway.com/en/pdf/welland.pdf | ||
| title= | | title=THE WELLAND CANAL SECTION OF THE ST. LAWRENCE SEAWAY | ||
| publisher=[[ | | publisher=[[The St. Lawrence Seaway Management Corporation]] | ||
| author= | | author= | ||
| date= | | date=March 2003 | ||
| accessdate=2008-08- | | accessdate=2008-08-20 | ||
| quote= | | quote= | ||
}} | }} | ||
</ref> | </ref> | ||
The | :{| class="wikitable" border="1" | ||
|+ '''specifications of the various Welland Canals'''<ref name=Seaway1> | |||
|- | |||
! '''year<br>built''' || '''number<br>of locks''' || '''length''' || '''beam''' || '''draft''' || '''maximum<br>tonnage''' | |||
|- | |||
40 wooden locks with a minimum size | |||
of 33.5 m by 6.7 m (110 x 22 feet) and a depth of | |||
2.4 m (8 | |||
|- | |||
| '''1829''' || 40 || 33.5 [[meter|m]] || 6.7 m || 2.4 m | |||
|- | |||
| '''1844''' || 27 || 45.7 m || 8.1 m || 2.7 m | |||
|- | |||
| '''1887''' || 26 || 82.3 m || 13.7 m || 4.3 m || 3,000 | |||
|- | |||
| '''1932''' || 8 || 225.5 m || 23.8 m || 8 m || 32,000 tons | |||
|} | |||
The current canal has pairs of locks, permitting vessels to proceed in both directions simultaneously. | |||
Seven pairs of northern locks are situatated on the [[Niagara Escarpment]], and raise or lower vessels a total of 99.5 meters. The locks take eleven minutes to fill or empty. The eighth lock is at the Southern end of the canal. It is used to raise or lower vessels the small amounts to the current level of the lake -- which can vary. | |||
There are no locks needed to travel from Lake Erie to [[Lake St Clair]], to [[Lake Huron]] and [[Lake Michigan]]. | There are no locks needed to travel from Lake Erie to [[Lake St Clair]], to [[Lake Huron]] and [[Lake Michigan]]. | ||
Vessels must transit one lock to travel from Lake Huron to [[Lake Superior]]. | Vessels must transit one lock to travel from Lake Huron to [[Lake Superior]]. | ||
There are several parallel locks on the [[St Mary's River]]. | There are several parallel locks on the [[St Mary's River]]. | ||
The largest lock is significantly larger than the locks on the Welland Canal. | The largest lock is significantly larger than the locks on the Welland Canal. | ||
There are approximately two dozen vessels restricted to the upper lakes. | |||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 15:41, 25 August 2008
There have been four Welland Canals, connecting Lake Ontario and Lake Erie.[1]
-
40 wooden locks with a minimum size
of 33.5 m by 6.7 m (110 x 22 feet) and a depth of
2.4 m (8
specifications of the various Welland Canals<ref name=Seaway1> year
builtnumber
of lockslength beam draft maximum
tonnage1829 40 33.5 m 6.7 m 2.4 m 1844 27 45.7 m 8.1 m 2.7 m 1887 26 82.3 m 13.7 m 4.3 m 3,000 1932 8 225.5 m 23.8 m 8 m 32,000 tons
The current canal has pairs of locks, permitting vessels to proceed in both directions simultaneously. Seven pairs of northern locks are situatated on the Niagara Escarpment, and raise or lower vessels a total of 99.5 meters. The locks take eleven minutes to fill or empty. The eighth lock is at the Southern end of the canal. It is used to raise or lower vessels the small amounts to the current level of the lake -- which can vary.
There are no locks needed to travel from Lake Erie to Lake St Clair, to Lake Huron and Lake Michigan. Vessels must transit one lock to travel from Lake Huron to Lake Superior. There are several parallel locks on the St Mary's River. The largest lock is significantly larger than the locks on the Welland Canal. There are approximately two dozen vessels restricted to the upper lakes.
References
- ↑ THE WELLAND CANAL SECTION OF THE ST. LAWRENCE SEAWAY, The St. Lawrence Seaway Management Corporation, March 2003. Retrieved on 2008-08-20.