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Jaheff

What's a Lock?

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A lock allows boats to pass around areas such as dams. The boats enter the lock on the lower side of a dam, the lock closes and slowly fills up with water untill it is of equal elevation of the top or upper side of the dam, then the lock opens allowing the boats to keep going. A lock is used when there are waterfalls and such places that boats cannot pass through. I hope someone can give you more details than that, but thats what I know.

                                                                       Ian

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A lock does not add ware to your boat unless you hit it.

As said by Mobydick, locks are used to raise and lower boat traffic so the boats and barges can move through the water without having to go around falls.

Check out the Panama Canal for their locks and lock systems.

You could write a report for your English class about locks for extra credit.  :)

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A lock isn't only because of a dam. For example, locks on the Erie Canal are there because of changes in the terrain. At the lock just two miles from my home the upstream elevation is 513' and the downstream 487'.

Here's a picture of a boat that entered from the low side and is waiting for the lock chamber to fill up to the upstream level so the gates can open and he can proceed upstream.

erie508.jpg

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Here on the Kananwha River in West Virginia. We have 3 sets of locks. It always a little creepy locking through. Im always waiting for the gate to open to early and be pushed out with no control. It would be like white water rafting in barrell.

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A lock isn't only because of a dam. For example, locks on the Erie Canal are there because of changes in the terrain. At the lock just two miles from my home the upstream elevation is 513' and the downstream 487'.

Here's a picture of a boat that entered from the low side and is waiting for the lock chamber to fill up to the upstream level so the gates can open and he can proceed upstream.

erie508.jpg

They are also used for changing water systems, like going from fresh water lake into salt water. They have one for Puget Sound and Lake Washington in Seattle.

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 Worked on different river systems for a number of years as a deckhand and then 1st Mate. Wait till you're the new man on the crew and know nothing about river work. Before you work your first lock the Captain calls you up to the wheelhouse and tells you to go out on the head of the tow and wait to get the key to the lock from the lockmaster ...

skillet

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Before you work your first lock the Captain calls you up to the wheelhouse and tells you to go out on the head of the tow and wait to get the key to the lock from the lockmaster ...skillet

Some people are evil.

;)

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