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Stoplogs are typically long rectangular timber beams or boards that are placed on top of each other and dropped into premade slots inside a weir, gate, or channel. Present day, the process of adding and removing stoplogs is not manual, but done with hydraulic stoplog lifters and hoists. [1] Since the height of the barrier can only be adjusted ...
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. 1–2.
Floodgate. Floodgates, also called stop gates, are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in dams, to adjust flow rates in sluices and canals, or they may be designed to stop water flow entirely as part of a levee or storm ...
Tainter gate being constructed, in 1936, on the upper Mississippi River, Lock and Dam No. 7 (Onalaska Dam), La Crescent, Minnesota (USACE) Stevenson Dam Tainter Gate. The Tainter gate is a type of radial arm floodgate used in dams and canal locks to control water flow. It is named for its inventor, Wisconsin structural engineer Jeremiah Burnham ...
Monitoring your recent login activity can help you find out if your account has been accessed by unauthorized users. Review your recent activity and revoke access to suspicious entries using the info below. Remove suspicious activity. From a desktop or mobile browser, sign in and visit the Recent activity page. Depending on how you access your ...
SEPTA will test new gates in its 69th Station and along the Norristown High Speed Line in an effort to stop fare evaders and save millions of dollars. SEPTA’s CEO was only too happy to pass ...
Demonstrators protesting the war in Gaza shut down San Francisco’s Golden Gate Bridge for around five hours Monday, as protests were also held in other cities in the U.S. Demonstrators on the ...
1: Tube connecting the chamber to the high water side of the sluice. 2: Gates to regulate the water level in the chamber. Only one gate may be opened at a time. 3: Tube connecting the chamber to the low water side of the sluice. 4: The chamber in which the water level can be controlled.
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