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What were the problems faced in transportation of the St. Lawrence river before the construction of the St. Lawrence seaway?

What were the problems faced in transportation of the St. Lawrence river before the construction of the St. Lawrence seaway?

Answers


John
1. Presence of raids e.g. lachin rapids

2. Shallow depth of water/ several islands near lake qutatio

3. Waterfalls - Niagara falls

4. Deposition of silt water lakes and huron

5. Difference in water levels in the lakes
johnmulu answered the question on January 20, 2017 at 14:03

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