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WaterCAD?s TRex Elevation Tools Reduce Water Distribution Model Building Time by 10 to 15 Percent

WaterCAD?s TRex Elevation Tools Reduce Water Distribution Model Building Time by 10 to 15 Percent
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WaterCAD?s TRex Elevation Tools Reduce Water Distribution Model Building Time by 10 to 15 Percent - 1

CASE STUDY Project Summary Organization: Dar Al-Omran Solution: Water and Wastewater Location: Zarqa, Jordan Project Objective: • Improve the hydraulic efficiency and performance of the water supply network • Reduce high rates of water loss in the water supply network • Provide greater access to potable water, particularly in areas serving impoverished population groups Products used: WaterCAD Fast Facts • The existing water supply was available to consumers on an intermittent basis only • The project proposes to replace about 600 kilometers of water mains • WaterCAD was used for all hydraulic modeling works ROI • WaterCAD’s TRex functionality alone resulted in a 10 to 15 percent savings in time and resources associated with the model-building process • Interoperability between WaterCAD and AutoCAD resulted in about 20 percent time saving, when compared to more traditional processes Dar Al-Omran Meets Tight Deadlines for the Zarqa Water Network Restructuring and Rehabilitation Project WaterCAD’s TRex Elevation Tools Reduce Water Distribution Model Building Time by 10 to 15 Percent A Millennium Challenge Corporation-funded Project The Zarqa Governorate is located to the northeast of Amman, in the Central Region of Jordan. With an area of 4,761 square kilometers and a population of 871,600, the region is projected to grow rapidly to 1,690,000 by 2030. To meet the needs of the growing population, as well as to address limitation in the current water network, the Millennium Challenge Corporation is funding a major restructuring of the network, including the development of water supply areas (WSA), distribution areas (DA), and district metering areas (DMA), with a transition away from direct pumping into supply. The project will install and replace approximately 35 kilometers of primary and secondary trunk mains and approximately 550 kilometers of tertiary distribution mains. The joint venture of Hazen & Sawyer and Dar Al-Omran, together with Nicholas O’Dwyer Ltd, were commissioned to progress the detailed design of the works. The team used Bentley’s WaterCAD for all hydraulic modeling works, including the development of extended period simulations (over 24 hours) for a variety of hydraulic scenarios representing both intermittent and continuous supply arrangements. Major Issues Include Intermittent Water Supply and Water Leakage The existing water supply scheme, which consists of approximately 3,500 kilometers of water mains with associated pumping stations and reservoirs, is subject to a variety of major shortcomings. Because of inadequate water resources and high levels of leakage, supply is available to consumers on an intermittent basis only. At present, water is supplied approximately 37 hours per week on average (i.e., 22 percent of the time). There are also high levels of water leakage, particularly in the tertiary pipe network. Most of the network is supplied by direct pumping from low-level sources and pumping stations rather than by gravity from elevated reservoirs, which is a more efficient system. There are serious deficiencies associated with the distribution network, including pipes laid over the ground and corrosion in steel piping. Finally, there are hydraulic capacity inadequacies throughout the system, as well as supply and water pressure imbalances across the distribution system, with some areas experiencing excessively high pressure, while other areas, in the higher elevations, have minimal supply due to low pressure. The main objective of the Zarqa Governorate water system restructuring and rehabilitation project is to improve the hydraulic efficiency and performance of the water supply network, including reducing water loss, which will reduce the water that needs to be pumped. The goal is also to provide greater access to clean, potable water in areas serving impoverished population groups. In addition, the project will reduce operation and maintenance costs for the water supply network, increase revenue due to improved availability of supplied water, and provide health benefits related to improved hygiene among populations constrained to low consumption of water. Color-coded map showing pressure and pipe diameters

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WaterCAD?s TRex Elevation Tools Reduce Water Distribution Model Building Time by 10 to 15 Percent - 2

ensuring that extremely tight project milestones project team." Emran Hammoudeh, Wastewater Design, Find out about Bentley Contact Bentley Global Office Listings ^-^^kW Sustaining Infrastructure -fiunj Profile 1 Intermittent Supply -InJ Operational (Transient, Valve) -a Operational (Transient. Pump} Pattern Library Notes Pattern Format: [stepwise Hourly Daily Factors Monthly Factor Hourly pattern for intermittent supply, shown in WaterCAD's pattern management WaterCAD Facilitates Meeting the Design Deadlines A fast-track project strategy was adopted to enable the completion of all...

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