Niagara
Horseshoe Falls
Height: 52 metres
Width at crest: 675 metres
River's depth beneath Falls: 56 metres

American Falls
Niagara Facts
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American Falls
Height: 55 metres
Width at crest: 320 metres
(The rubble base reduces the uninterrupted fall of water to 21 metres).


Water Flow over Falls
Combined flow  (approx. 90 per cent  of combined flow passes over the Horseshoe Falls).
April to October, daytime:  2832 cubic metres per second.
Other dates and times: 1416 cubic metres per second.
(Rest of  river flow is diverted for production of electricity-- nearly 16 billion units on the Canadian side alone).

Niagara River
Length:  56 km (approx. from Lake Erie to Lake Ontario).
Elevation decline: 99 metres (approx.)
Drainage: 684000 sq. km.
River gorge: 11 km (approx. from the Falls to Queenston downstream).
Depth of gorge: Up to 107 metres.
Total average flow: 6000 cubic metres (estimated).
River speed: Nearly 64 km/hour at crest.
Depth of whirlpool: 38 metres.

Power Generation
Canada
Generating Station
Units
Year
Generating Capacity (kW)
Sir Adam Beck 1 10
1922
498000
Sir Adam Beck 2
16
1954
1440000
Pumping Generating Station
6
1957
174000
Ontario Power
9
1905
74000
Decew Falls 1 (on River Welland)
5
1930
23000
Decew Falls 2 (on River Welland) 2
1943
142000
Total
48

2351000
Year: Year of Commissioning of first unit.
Ontario Power Station  retired in 1999.
Proposal for Sir Adam Beck 3 under consideration (2004).
The United States of America
Robert Moses
13

2275000
Lewiston Pumping Generating Station
12

300000
Total 25

2575000




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