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The district includes the powerhouse, an earth embankment, a concrete non-overflow dam, and a 700-foot-long concrete gravity overflow dam. They were built in 1897–1898 by the Hudson River Power Transmission Company and span the western channel of the Hudson River between the Saratoga County shore and Bluff Island.
Lock and Dam No. 15 is a lock and dam located on the Upper Mississippi River.It spans the river between Rock Island, Illinois and Davenport, Iowa.Lock and Dam 15 is the largest roller dam in the world, its dam is 1,203 feet (366.7 m) long and consists of nine 109 feet (33.2 m) non-submersible, non-overflow roller gates and two 109 feet (33.2 m) non-submersible overflow roller gates.
The movable portion of the dam is 1,478 feet (450.5 m) long and consists of 13 tainter gates and three roller gates. The non-movable part is a 3,340 feet (1,018.0 m) long non-overflow earthen dam that connects to the Wisconsin shore. The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. There is also an incomplete auxiliary lock. [2]
A weir / w ɪər / or low-head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs.
Chute spillway of Llyn Brianne dam in Wales. A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not ...
A combination of design and construction flaws, continuing to operate the dam when the primary system for gauging the water level was known to be inaccurate (gauge pipes had become detached), moving the "failsafe" secondary gauging system above the actual height of the dam to avoid false positives, and operating the dam in an unsafe manner by ...
When the lake's water levels rose, it began to overflow at the top of the pipe connecting to the river, which spans 8-foot-wide and 200-foot-long, and ran at a rate of 48,400 cubic feet of water ...
The Tashiro Dam was designed as a solid core, non-overflow concrete gravity dam. The impounded water forms a lake called the Tashiro-choseichi (田代調整池), from which water discharges through a long penstock under the Southern Japanese Alps into the Hayakawa River.