answersLogoWhite

0


Best Answer

they were built in the 10th century during the Song Dynasty (:

User Avatar

Wiki User

βˆ™ 12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: When were ship canal locks invented?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Who invented canal locks?

g Washington


Is the Suez canal the longest canal in the world?

It is the longest big-ship ( as opposed to sub-sized barges) canal of its type in the World. It is a sea-level canal and does not require locks. it had movable bridges for traffic control at one time- but these were not, strictly speaking, hydraulic locks.


How many locks are in the Erie Canal?

The original Erie Canal had 83 locks. The canal was improved and the number of locks went down to 72 locks. The canal was improved again and now there are only 35 locks.


The St Lawrence Waterway has many locks what do the locks do?

Locks in any canal serve to raise or lower a ship to the level of the water in the next segment of the canal so it may continue through. They are used when an elevation change is too severe for a natural navigable waterway to exist.


How many locks have been constructed on the panama canal?

The "Locks" are long narrow chambers with gates at each end that lock the water in. A ship goes into a chamber, the gates are closed and water is pumped in or out to raise or lower the ship to a new level. The Panama Canal has three sets of Locks. The Gatun locks are on the Caribbean side. Ships go into the locks at sea level. The gate is closed. Water is pumped in and the ship rises to the level of Lake Gatun. The ship sails across the lake and the canal and enters the Pedro Miguel Locks where it is raised again. It sails across the canal and enters the Miraflores locks where it is lowered to the Pacific Ocean's sea level. Reference: ADDED: It is not usual to pump water uphill on a canal, and it is never pumped downhill. That's what gravity's for! Normally a canal above sea-level is designed not to need no pumping because it can be kept topped up from streams flowing off land higher than its highest reaches; though if these natural sources are reduced or lost then pumping would be necessary. The problem facing the Panama Canal is of the highland streams being reduced by land use such as deforesting.


Is the Suez Canal the only canal without canal locks?

No. Most, but not all, other canals have canal locks. Most canals are not built on flat land. Another without locks is the Corinth Canal.


Is the Suez Canal the largest Canal?

Yes, and as a full-scale Ship canal- not something for narrow-gauge ( in comparison) Barges, such as the Erie Canal and others which used draft animals- often Mules- Draft animals in both senses ( ask the Army?) The Suez canal does not have locks- it did= may still have movable bridges for personnel to access the gates- and for traffic control ( like toll gates on turnpikes) but in operation, ships run under their own power- a Canal Pilot has the Conn- giving the steering orders- and so it goes- no locks needed as it is a sea-level canal.


What are similarities between the panama canal and the ballard locks?

What are the similarties between the Panama Canal and the ballard locks


Can you swim in canal locks?

no


Why does the Panama Canal have locks but the Suez Canal does not?

Locks are only needed when the ships need to be raised and lowered in altitude because of the terrain the canal crosses.


What is a Group of joined locks on a canal called?

A group of joined locks on a canal is called a lock flight. This term refers to a series of interconnected locks that allow boats to be raised or lowered to navigate changes in water levels along the canal.


Is the Suez canal a series of lochs?

No locks on the Suez Canal