Skip to main content


Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

The Milwaukee Metropolitan Sewerage District (MMSD) retained RUST⊘HARZA to evaluate a portion of its interceptor sewer system. As part of this evaluation, RUST⊘HARZA has proposed a new strategy to regulate flows from tributary combined sewers into the interceptor sewer system. This regulation strategy provides a system that is both self-acting and responsive to a variety of flow scenarios and rainfall distribution patterns. Rather than installing conventional regulating devices which provide a set flowrate into an interceptor sewer, the proposed system will incorporate devices which provide a constant hydraulic grade line in the interceptor. As such, the amount of flow that enters the interceptor sewers depends upon available downstream capacity. Regulating hydraulic grade line rather than flowrate allows the maximum amount of flow to enter the interceptor sewers while providing protection from potential basement flooding caused by excessive surcharge levels.

In addition to more efficient use of intercepting sewer capacity, the regulation strategy proposed by RUST⊘HARZA also provides a significant cost savings when compared to conventional flowrate regulation. Most of the devices chosen for the proposed strategy require minimal modification of existing structures to install, resulting in a construction cost savings of approximately 20 Million. None of the regulating devices chosen by RUST⊘HARZA require a centralized control system or highly trained operators. In addition, 96% of the regulating devices chosen do not require an outside power source to function. These two advantages provide significant savings in operating costs over the lifetime of the system.
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: 2001-01-01

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 These proceedings are not peer reviewed.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
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