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Port of Long Beach and IDModeling Identify and Prioritize Critical Valves Using Hydraulic Model

Port of Long Beach and IDModeling Identify and Prioritize Critical Valves Using Hydraulic Model

April 13, 2011 - The Port of Long Beach (POLB) is the second largest port in the United States, annually handling more than 6.2 million containers and over $140 billion worth of cargo. The domestic water system serving the POLB includes approximately 90 miles of pipe to serve a unique group of customer classes that includes administration and office buildings, container terminal areas, large vessels, and other customers.

POLB utility staff must manage a diverse and complex set of needs for multiple utilities and as such, it is vital to quickly and proactively address unplanned events such as pipe breaks, valve failures, facility outages, and similar. At the same time, they have a continued focus on long-term maintenance and improvement planning projects which require valve and pipe assessments and prioritization of these improvements.

The Solution:

Per IDModeling's on-call contract with POLB, IDModeling was utilized to perform a valve criticality analysis to prioritize the most critical valves within the system using the InfoWater Valve Criticality module (VCM). For each assessed valve, the valve criticality module will identify the area that would be isolated with the nearest closeable elements closed if that assessed valve failed. Within this isolated area, called a pound, the isolated pipes and junctions are provided in a results table. There is also a report that identifies junctions with low pressures and junctions below a 'no water' threshold for each individual pound. The module allows the user to set what the values are for the low pressure and the 'no water' threshold criteria.

IDM and POLB staff defined three criticality levels for prioritizing the most critical valves. Each criticality level included a certain percentage of the total demand that is isolated or a certain percentage of the total demand connections that are isolated with each pound. Recommended locations were then developed for installation of new valves to address critical valve failure locations based on three criticality levels. With these critical valve locations, a prioritized maintenance plan will be generated for the valves throughout the system based on the VCM reports that identify impacted demands and low pressure junctions for each assessed valve. With the help of IDModeling advanced modeling services and InfoWater's Valve Criticality module, POLB is proactively addressing their maintenance and improvement planning efforts and better equipped to quickly handle the unplanned events in their system.

IDModeling has over two dozen active hydraulic modeling on-call contracts with water/wastewater utilities and engineering consulting firms across North America. IDModeling's team provides a unique support system for engineering, hydraulics, systems operations, hydraulic model software, and training expertise.

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April 13, 2011 - The Port of Long Beach (POLB) is the second largest port in the United States, annually handling more than 6.2 million containers and over $140 billion worth of cargo.