flood water Articles

  • How a Specialized Automatic Control Valve Solved Flooding

    The Colombian area of Antioquia creates much of its clean power from hydropower plants along the Guadalupe River. The Guadalupe IV hydroelectric plant generates power with three vertical axis turbines that discharge water below the river level. To prevent flooding, however, the plant needed a solution that ensured the ejector ...


    By Singer Valve Inc.

  • From Drought To Flooding: California Struggles With Turnaround

    In a drastic about-face, California has gone from historically desperate drought conditions to an inundation of water that has brought its own set of problems.  In one indicator of the dramatic difference, snowpack on the Sierra mountains recently measured 135 percent of its seasonal average. “We haven’t seen an event of this magnitude in at least a decade,” Mike ...


    By KLa Systems, Inc.

  • Flood Alleviation

    BritishFlora helps rescue lost London river from subterranean obscurity in award winning flood prevention. In the 1930's, engineers at the then Metropolitan Borough of Woolwich diverted a flood-prone section of the River Quaggy through an underground culvert so that new housing could beQuaggy built. In fine weather, the river was contained. But after heavy rainfall, the Quaggy became a ...


    By BritishFlora

  • LED Applications for Oil and Gas Refining and Processing

    Oil and gas processing facilities are unsafe due to the existence of hazardous compounds during operations. When addressing such issues, companies in the sector may deploy explosion proof lighting systems to prevent the ignition of sparks created from the electrical equipment. The adoption of LED technology in oil and gas refineries has helped reinforce key safety measures associated with ...


    By Larson Electronics LLC

  • Using Electromagnetic induction to characterize soils - Case Study

    Electrical conductivity measurements have been used for years to determine salinity and moisture in soils. Probes were inserted directly into the soil to determine how well the soil conducted an applied current. This process was slow and labor-intensive and was usually reserved for scientific studies. A more recent technique for measuring conductivity is electromagnetic induction (EM), a ...


    By Geonics Limited

  • How to achieve triple bottom line sustainability benefits on airport runway projects

    CH2M delivers best-in-class sustainable approaches for airport clients worldwide by constantly seeking opportunities to apply sustainable development and design concepts. From planning through plowing, CH2M is leading the development of the most sustainable runway projects in the U.S. Through our life-cycle approach, airport clients have experienced significant benefits such as ...


    By CH2M Hill Companies, Ltd.

  • Flood maps and plans

    Flood means the temporary covering by water of land not normally convered by water ( 2007/60 EC). There are various flood types, which differs regarding to the water source (e.g. rainwater, groundwater, stream water) their duration (short (minutes to hours) or long (weeks to months)) or to their location (e.g. coastal floods). One possible classification of flood types is listed below: Flash ...


    By IWA Publishing

  • Flood and trash screen monitoring

    Hydro-Logic was contracted by City of Edinburgh Council in 2010 to supply and install water level monitoring and flood warning systems at 10 key locations throughout the City. The sites were on open water courses and culverted stream running through the city suburbs where flooding has been a recurring problem over several years. Design and installation services were provided by our sister company ...

  • Flood hazard maps

    Flood hazard maps have to be developed for areas, which have been identified in the preliminary flood risk assessment. For certain flood frequencies the extent and the water depth, the flow velocity or the relevant water flow have to be mapped. Flood frequencies consider (2007/60/EC): floods with a low probability, or extreme event ...


    By IWA Publishing

  • What is a Flood Risk Assessment?

    Flood Risk Assessments (FRA) are becoming a very important part of the planning permission process. It interlocks with other areas of the planning process, and could cause weeks or months of delays if not done from the beginning. But what is a Flood Risk Assessment? A Flood Risk Assessment is a series of tests that are carried out to assess the level of flood risk of a given location. The ...


    By AQUAREAD Limited

  • Downtown Shall Not Flood Again

    ABSTRACTThe City of Richmond, Virginia conducted a study to evaluate local drainage system in its downtown business district to remedy conditions that cause flooding more than once in a twoyear period. The main goals of this study are to evaluate the capacity of the storm water collection system in the downtown area to handle the 2-year storm event, identify system constraints and provide ...

  • Sewer Flooding: The Next Step

    Untitled Document Since privatisation, water and sewerage utilities in the UK have been able to deliver almost year-on-year reductions. ...


    By WRc plc

  • Flood risk maps 2

    Flood risk is a combination of the likelihood of flooding and the potential consequences arising. There are different maps depending on the chosen hydrological scenario (see flood hazard maps). The flood risk maps should consider information about: the number of potentially affected inhabitants the type of economic activity on the area potentially affected other information ...


    By IWA Publishing

  • Tidal technology to stop flooding

    A large 1.6 metre valve that stops tidal waters getting into the stormwater network will help stop flooding in the city centre during heavy rainfalls.   High tidal levels and heavy rain cause problems in Porirua, New Zealand.  Porirua was the first Council in New Zealand to test the valves, which are a Scandinavian design called WaStop. The Councils Water Services Engineer Desmond ...


    By WaStop International AB

  • Flood Resilience Measures

    Flood risk management is a top priority, exacerbated by the perception that flood risk has increased during the last two decades in many regions. There are two hypotheses for such changing patterns: Changes in climate, e.g. the sequencing of extreme wet and dry periods, leading to a greater magnitude and/or frequency of hydrological extremes (Huntington 2006); and ...


    By IWA Publishing

  • After the flood - preventing mold

    Beyond the direct water damage from a flood, there can be short term and long term problems with mold growth, whether the building is commercial or residential. The source of the water is the first important issue. Consider the following: 1.) If the flood is from surface water flooding such as heavy rains, hurricanes, and overflowing rivers this means dirt and debris. This ...

  • Flood control and disaster management

    Flood control refers to all methods used to reduce or prevent the detrimental effects of flood waters (wikipedia). Some of the common techniques used for flood control are installation of rock berms, rock rip-raps, sandbags,  maintaining normal slopes with vegetation or application of soil cements on steeper slopes and construction or expansion of drainage channels. Other methods include ...


    By IWA Publishing

  • Developing optimum solutions to flooding

    Developing optimum solutions to flooding With a very long period of wet weather in the summer overlaid by intense rainfall, 2007 was the wettest summer in the UK on record. This unusual weather pattern resulted in very high localised runoff, with three events in England exceeding the 1 in 100 year return period over that time – some of the worst flooding that has ever occurred in ...


    By Innovyze

  • Living with the floods, not against them

    “Yes, we are illiterate sir, but we are engineers as far as our experience with water and rivers is concerned”, says Phushi Mahato, a villager in the Gosi Kandak floodplains in North-Bihar in India. As an outcome of water resource management that failed to understand the role of fluvial regimes in delta, Phushi and his fellow village members have now become vulnerable to floods ...


    By Wetlands International

  • Preventing rain water flooding case study

    SmartScan 50 helps preventing rain water flooding by providing an efficient level measurement solution in a pop. 1M city. The municipality has been struggling for years with heavy flooding of rain water during winter time that damaged large parts of the city and caused distress to its residents. As a result, a long drainage pipe was laid between the city's shore and the flooded parts. This huge ...

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