On Monday the heat index here was 105 degrees. On Tuesday it was 110 degrees. Lucky for us, we were hanging out at the Soo Locks, in Sault Ste. Marie, MI, where it was at least 10 degrees less.
The Soo locks are quite fascinating -- a real engineering marvel. The only way to get from Lake Superior to any of the other Great Lakes is by passing through the St. Mary's River. The big problem was that there is about a 21 foot difference in the water levels of Lake Superior and Lake Huron.
Don't ask me how, but the locks were constructed to overcome this problem and now this passage has become the busiest locks in the world.
Do you see here how Lake Superior (on the left) is way higher than Lake Huron (on one right)?
When a ship comes in (which is all the time), the water level has to be equalized before it can get through. You can see all the water coming in at the bottom.
It takes about a half an hour to get the lower side full. When full, the bridge opens
to allow the vessel to go through.
This particular ship is the Keizersborg, a 428-ft. vessel, from the Netherlands.
And off to Lake Superior she goes....
My Weekend Goal was to Make a Bench Pillow - I am happy to report that I accomplished that goal!
3 years ago