01. Manning Equation The Manning Equation is an empirical formula that describes a relationship between depth and velocity under ideal conditions and is commonly used to design sewer systems. This […]
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World Trade Center Attack September 11, 2001 is a defining moment in U.S. history, and its memories and emotions echo through the words of the 9/11 Commission: At 8:46 on […]
Religious Observances Certain religious practices can also be observed in sewer use patterns. This composite hydrograph shows normal dry weather flow patterns from a flow monitor located in a region […]
Religious Observances Certain religious practices can also be observed in sewer use patterns. This composite hydrograph shows normal dry weather flow patterns from a flow monitor located in a region […]
Holidays Holidays are welcomed diversions from everyday life and provide time to celebrate and relax with family and friends. These diversions are reflected in sewer use patterns, as shown below. […]
Northeast Blackout Millions of people were left without power on August 14, 2003 at 4:09 PM when the largest blackout in the history of North America occurred. The blackout began […]