Further improvements in drainage canals and pumping equipment in the older sections of the city were also made. These operated well until they were overwhelmed by Hurricane Katrina in 2005.

城市其他老城区的排水渠道和排水设备有有了进一步的提高，这些设施直到被2005年卡崔娜飓风淹没之前，一直运转良好。

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Used for industrial and civil architecture roofing, basement, tunnel, tunnels, water supply and drainage pool, water pumping station, etc have waterproof impermeable concrete engineering requirements.

用于工业与民用建筑的屋面、地下室、隧道、巷道、给排水池、水泵站等有防水抗渗要求的混凝土工程。

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The flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.

采用一维非恒定流方程模拟地下排水管网内的水流，并给出泵站、闸门、淹没出流管道等排水系统的处理方法。

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Hull University expert Prof Lynne Frostick said flooding remained a threat despite investment in drainage and pumping stations.

BBC: Man on surfboard in flooded Hull street

An independent review into the 2007 floods said Yorkshire Water had ignored repeated warnings about the state of its drainage and pumping systems.

BBC: Man on surfboard in flooded Hull street