Sewer Sociology
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.
November 12, 2018
Scattergraph
Manning Equation Comparison
The Manning Equation can be applied using three methods, but which method should be used?
November 12, 2018
Scattergraph
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.
November 12, 2018
Scattergraph
Lanfear-Coll Method
The Lanfear-Coll Method uses a regression technique to fit the Manning Equation to flow monitoring data.
November 12, 2018
Scattergraph
Knife Gate Valve
A satellite collection system discharges wastewater to another agency through a 27′ sewer for subsequent conveyance and treatment.
November 12, 2018
Scattergraph
Iso-Q Lines
The relationship between flow depth and velocity is important to understanding the hydraulic conditions in a sewer.
November 12, 2018
Scattergraph
Iso-Froude Lines
The Froude Number (Fr) is a dimensionless number used to describe flow conditions and is analogous to the Mach Number defining supersonic flight.
November 12, 2018