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Pedestrian bridge design standards
Noah Carmichael
A typical pedestrian bridge is designed to carry pedestrians, bicyclists and light maintenance vehicles. A well-engineered pedestrian bridge should comply with The American Association of State Highwa...
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New rules address radioactive water residuals, radon exposure in Illinois
Matt Schroeder
The Illinois Emergency Management Agency (IEMA) intends to implement a new rule (32 Ill. Administrative Code 622) that addresses the ways radioactive water treatment residuals may be safely handled. I...
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Wastewater lift station types: a comparison
Edgar Mendoza
In a sewage or wastewater collection system, raw sewage travels underground through sloped pipelines (also called gravity pipelines). However, when the elevation of the source is not sufficient for gr...
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Transportation planning: stages and challenges
Noah Carmichael
Transportation planning is a collaborative process that involves users, including businesses, community groups, motorists, environmental organizations and freight operators, of the transportation syst...
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Navigating the Illinois stormwater compliance landscape: What your business needs to know
Fehr Graham
For industries required to obtain an Illinois General Stormwater Permit, subtle changes went into effect this summer that will change a company's environmental responsibilities. The Illinois Environme...
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Designing traffic control plans to keep growing communities safe
Noah Carmichael
Construction on roads and highways disrupts traffic flow and poses potential safety hazards for workers, pedestrians and motorists. A traffic control plan or TCP offers a detailed outline to manage tr...
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Securing funding for wastewater treatment plants in rural communities
Bridgette Stocks
Many rural communities across the United States rely on wastewater treatment processes that fall short of environmental and public health protection standards. The U.S. Environmental Protection Agency...
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