Skip to main content

Design and Construction of an Underground Cavern for CSO Control

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The City of Atlanta, under Consent Decree with the U. S. Environmental Protection Agency (EPA) and the Georgia Environmental Protection Division, was required to implement long-term planning and combined sewer overflow (CSO) controls throughout the city's combined sewer areas. For the East Area Combined Sewer Basin, a 1-mile storage and transport tunnel was proposed to augment existing tunnel storage increase existing CSO storage capacity to comply with new state and federal regulations. The City conducted a value engineering study of the CSO Control Plan which resulted in modifications and projected savings of 150 million. Included in the VE recommendations was replacement of the tunnel with an above ground CSO storage tank. During preliminary design, a review of operational hydraulics, available property, protection of the mature trees in the area, impacts of construction and future operation to the area residents and cost, led to the consideration of an underground facility to provide the required additional CSO storage. The selected option was a 60-foot wide underground cavern with a storage capacity of 10 million gallons to be excavated into massive granite rock. Following a subsurface site investigation, the underlying bedrock was determined to be high quality, and well suited to construction of an underground opening.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864707787974931

Publication date: 2007-01-01

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 These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree 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