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Navigation gates where the barrier crosses the GIWW and Bayou Bienvenue can be worked to reduce the risk of storm surge coming from Lake Borgne and/or the Gulf of Mexico. Another navigation gate ( Seabrook Floodgate ) has been constructed in the Seabrook vicinity, where the IHNC meets Lake Pontchartrain , to block a storm surge from entering ...
These gates can be opened and closed quickly, so they are used for canal locks, to change levels, and also for most freight docks. As the function of a freight dock is to enclose deep water, such gates point inwards. A graving or dry dock, in contrast, excludes water, and so their gates point outwards.
Assa Abloy was founded at the merger of the two companies Assa and Abloy in 1994. Assa stands for August Stenman Stenman August. [7] [8] The name Abloy comes from a contraction of the Swedish Finnish bilingual name Ab Låsfabriken Lukkotehdas Oy, meaning literally Corp. Lock Factory Lock Factory Corp. (first Corp. and Låsfabriken from Swedish, last Lukkotehdas and Corp. from Finnish).
The Chicago Harbor Lock, also known as the Chicago River & Harbor Controlling Works, is a stop lock and dam located within the Chicago Harbor in Chicago, Illinois at the mouth of the Chicago River. It is a component of the Chicago Area Waterway System , and is used to control water diversion from Lake Michigan into the river and for navigation.
A plan and side view of a generic, empty canal lock. A lock chamber separated from the rest of the canal by an upper pair and a lower pair of mitre gates.The gates in each pair close against each other at an 18° angle to approximate an arch against the water pressure on the "upstream" side of the gates when the water level on the "downstream" side is lower.
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