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The engine was rated at 16 hp (12 kW) and was installed some time before 1881. It was replaced by a 30 hp (22 kW) steam engine driving an 18-inch (46 cm) Gwynnes pump in 1896. The plant was demolished between 1943 and 1953, and the district has been drained by an Allen-Gwynnes 20-inch (51 cm) electric pump since 1977. [11]
A culvert is a structure that channels water past an obstacle or to a ... [17] [18] [19] The current literature on culvert fish passage focuses mostly on fast ...
While pipe sizes in Australia are inch-based, they are classified by outside rather than inside diameter (e.g., a nominal 3 ⁄ 4 inch copper pipe in Australia has measured diameters of 0.750 inches outside and 0.638 inches inside, whereas a nominal 3 ⁄ 4 inch copper pipe in the U.S. and Canada has measured diameters of 0.875 inch outside and ...
Submergence transitions for Parshall flumes range from 50% (1–3-inch sizes) to 80% (10–50-foot sizes), [12] beyond which point level measurements must be taken at both the primary and secondary points of measurement, and a submergence correction must be applied to the flow equations. The secondary point of measurement (Hb) for a Parshall ...
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It works in three ways. First, the perimeter of the trapezoidal fence is typically 40–50 feet (12–15 m) long, making it difficult for a beaver to dam the entire fence. Second, as beavers try to dam the culvert, the fence forces them to dam in a direction away from the culvert, which is not in their nature.