CE154 - Lecture 10-11 Stormdrain System Design

CE154 - Lecture 10-11 Stormdrain System Design - Stormdrain...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Stormdrain System Design CE154 Hydraulic Design Lectures 10-11 Fall 2009 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Stormdrain System Definition - A system that collects, conveys and discharges stormwater runoff from the drainage basin to designated outflow collection points - Typically used in urbanized areas Elements of design - hydrology: design flow and volume - hydraulics: inlet, conveyance in open channel and closed Fall 2009 2
Background image of page 2
Applications Land development – municipal ordinances require runoff not to exceed pre-project level Industrial plants (power, chemical, oil refinery, etc.) require that facilities be protected from X-year floods Municipal storm sewer design typically to transport 5-25 year flood runoff Fall 2009 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Useful References California Stormwater Best Management Practice Handbook, Calif. Stormwater Quality Association, 2004 (a broad description of systems and elements) US EPA Stormwater Best Management Practice Design Guide, EPA/600/R-04/121, September 2004 Local county or city public works design standards Fall 2009 4
Background image of page 4
Study Objectives Be cognizant of storm drain system elements and design criteria Be able to conduct preliminary design Fall 2009 5
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Definitions Detention basin: a natural or artificial basin that receives and temporarily holds storm runoff to reduce downstream peak flows for flood control purposes Drainage pipe or channel: part of a stormwater conveyance system that transport stormwater from one place to another Manhole: a junction where two or more drainage pipes confluence and where maintenance access is provided to the drainage system Fall 2009 6
Background image of page 6
Schematic GIS drainage map Fall 2009 7
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Typical Manhole Fall 2009 8
Background image of page 8
Definitions (cont’d) Catch Basin: A basin, typically with a grated cover, to which surface runoff drains. The basin may be along a curb side or in the middle of a field. The bottom of the basin is typically connected to a drainage pipe, and the basin serves as an inlet to the storm drain system. Fall 2009 9
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Catch Basin Fall 2009 10
Background image of page 10
Storm Drain System Design 1. Layout drainage channels and pipes to provide transport of runoff 2. Delineate the drainage area from which runoff drains toward a pipe or channel 3. Determine drainage pipe or channel size 4. Design catch basins, manholes, detention basins, and other pertinent structures 5. Conduct system-wide drainage analysis to ensure connectivity and system capacity Fall 2009 11
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Design Considerations 1. Free surface flow exists for the design discharge. Practical design limit for free surface (open channel)
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/08/2010 for the course CE 251 at San Jose State University .

Page1 / 49

CE154 - Lecture 10-11 Stormdrain System Design - Stormdrain...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online