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Using the Parshall flume flow equations and Tables 1-3, determine the flow type (free flow or submerged flow) and discharge for a 36-inch flume with an upstream depth, Ha of 1.5 ft and a downstream depth, H b of 1.4 ft. For reference of locations H a and H b, refer to Figure 1.
The electric motor drove a 36-inch (91 cm) pump. [17] Two new pumping stations at Leverton and Benington were completed in 1976, again on the eastern edge and pumping directly into The Wash. The pumping station at Thorpe Culvert was managed by the Anglian Water Authority, but a replacement in 1983 was partly funded by the Fourth District.
The pumping station was built between 1807 and 1809 in time for the opening of the canal in 1810. The station was built to house two pumping engines, but only one, a 36-inch (910 mm) bore engine bought second-hand from the West India Dock Company, was initially installed. In 1810 a second engine was ordered from Boulton and Watt.
A culvert is a structure that channels water past an obstacle or to a subterranean waterway. Typically embedded so as to be surrounded by soil, ...
In order to mitigate the high cost of dredging to remove this material, the water levels in the 46.5-acre (18.8 ha) dock were maintained by pumping fresh water from the Holderness Drain. Pumps capable of pumping 14.5 million cubic feet (410 Ml) per day were installed, resulting in significant savings in the cost of operating the dock. [17]
The drain is characterized by its long length and narrow width, the cross-section of the drain is a function of the maximum flow volume anticipated from the surrounding surface. Channels can range from 1 inch (2.5 cm) to 2 feet (61 cm) in width, while depths can reach up to 4 feet (120 cm).