Stormwater Collection Systems Design Handbook

Kevin Lansey
Dept. of Civil Engineering and Engineering Mechanics
University of Arizona
Tucson, Arizona
Walid El-Shorbagy
Dept. of Civil Engineering
University of United Arab Emirates
Al Ain, United Arab Emirates
Most often stormwater removal is a drainage process using gravity as the driving force to move water through the system. However, in some instances, to reduce hazards caused by excess water, terrain dictates that stormwater must be lifted. For example, a levee system acts to maintain water in a channel but the levees also act as retention structures for lateral inflow to the channel. Depending upon the channel water levels, water collected behind the levee may be pumped to the river.
This chapter provides background on the hydraulics of pipeline and pumping systems, pump types, hydraulics, and selection and pump station layout and design. The second part of the chapter considers design and configuration of the pumping station. An example design analysis is presented including wet-well sizing and pump operations.
Several references are available to supplement this material. The Hydraulic Institute Standards (1994) and the American Petroleum Institute (1995) provide excellent manuals for pump design and selection. Similarly, Sanks et al. (1998) and the Water and Environment Federation (1993) have published guidance on complete pumping stations including hydraulics, layout, and practical considerations.
The layout of a stormwater pump-force main system is typically a pump house with wet-well connected to a single pipeline (Fig. 12.1). The pump supplies additional required energy...