Skip to main content

Lessons Learned Through Bidding, Award and the First Year of Construction of a 54-inch Sewer in Environmentally Sensitive Area

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


On the Santa Ana River Interceptor (SARI) Replacement Project Mainline Contract, the bids received were significantly lower than the engineer's estimated construction cost. Information will be provided to help you estimate similar projects based on current economic conditions. In addition, a bid irregularity was identified which required special approval from the elected officials which otherwise would have cost the agency over 3M. Obtaining elected official approval was a significant process to complete analysis, make recommendation, review potential legal liabilities, and make public meeting presentations to obtain their approval. Attendees will learn from our experience of specific “do's and don'ts” when going through the process of obtaining elected official approval to waive a bid irregularity.

Upon implementation of construction, the contractor submitted a value engineering suggestion to save the project over 1M. The recommended design change was to eliminate one of the deep tunnel shafts and allow the microtunnel to be installed on a horizontal curve. Although horizontal curve alignments are common overseas, only one planned horizontal curve microtunnel project has been successfully completed in the United States. The presentation will cover some of the more significant details of the cost saving request, including items added to help reduce the owner's risk of implementing a curved tunnel installation (longer drive length) and joint deflection.

Document Type: Research Article


Publication date: January 1, 2012

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 These proceedings are not peer reviewed.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 Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial 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