Commercial boats
Commercial boats
commercial vessels
Commercial boats
commercial;)
Generally, the boat approaching the lock at the same water level as is in the lock, has priority. All things being equal commercial takes priority over pleasure craft.
There are no locks on the Thames. There are lots of locks on the Thames so that the river can be navigated. The river is tidal as far as Teddington Lock in west London.
Yes the are boats there you can ride on.
The locks of the Erie Canal service barges and recreational boaters by raising and lowering them so they can get through the canal. The 34 locks separate the Hudson River at Waterford with the Niagara River near Buffalo.
Dams - yes, locks - no
A series of Locks and Dams raise and lower water levels along a river to allow boats to pass through uneven water terrain.
no
it has 17 locks kin total