Skip to main content

Modeling Chicago's Rainblocker Program: Inlet Restriction in a Complex City-Wide Collection System Model

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

The presence of inlet restrictors (“rainblockers” ) in Chicago's enormous combined sewer system presented a significant challenge to the system modeling effort and greatly increases the model's complexity. This paper presents a unique approach to representing the effects of the rainblockers by dividing runoff surfaces into “restricted” and “unrestricted” areas. The effect of restrictors and perforated manholes in each restricted catchment was represented with a composite head-discharge relationship that considers the capacities of the different types of devices in place. Following calibration against flow monitoring data, the resulting model was used to perform wet weather simulations and identify trunk sewer deficiencies and locations where basement backups could occur for various storm events. The completed city-wide model will serve as a tool to optimize the Rainblocker Program, characterize trunk sewer system performance and combined sewer overflows (CSOs), and assist in the planning and design of future system improvements.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2008-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more