Water and Sewer

Twin 72-inch Sanitary Sewer Interceptor

Update: Contract approved by council. 

Estimated Notice to Proceed for design phase February 2020.

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The project will rehabilitate twin 72-inch *interceptors which are critical components to the City of Raleigh's sewer collection system. These interceptors deliver wastewater flows from the Walnut Creek Lift Station to the Neuse River Resource Recovery Facility.

Phase one services included a conditional assessment plan, interior pipe assessment specifications, and preparation of a condition assessment report with recommended rehabilitation and/or replacement methods for the twin interceptors. Phase two will be the final design and construction administration services.

* An interceptor is part of the wastewater system that helps to control wastewater flow.

Project Details

 
Type:
Water and Sewer
Budget:
$30,000,000
Project Lead:
Dennis Lassiter, PE
Contractors:
CDM Smith

Contact

 

Dennis Lassiter, PE
Senior Project Administrator
Email
Phone: 919-996-3477 (Office)
Office Location:1 Exchange Plaza #620
Raleigh, NC 27601

Lead Department:
Water

Subscribe

 

Planning

This phase is complete.

Lead Department:
Water

Design

Contract amendments sent to City of Raleigh council for approval. 

Lead Department:
Water

Construction

Scheduled to begin construction in Fall 2021. 

Lead Department:
Water

Complete

Project scheduled to be completed in Winter 2021.

Lead Department:
Water

History

The 72-inch interceptors are concrete structures that were installed in the early 1970’s and 1990’s. The pipe lining that protected the concrete pipes from sewer gas deterioration no longer provides protection and the concrete pipes are deteriorating. The interceptors are currently the only discharge means for sewer flows to the Neuse River Resource Recovery Facility and a failure of these pipes would result in a major Sanitary Sewer Overflow (SSO). This project will eliminate the occurrence of the interceptor failure and a major SSO.

Schedule

Date Activity
Spring 2021 Project Design Complete
Spring 2021 Permitting Complete
Spring 2021 Easement Acquisition Complete
Fall 2021 Project Bid Complete
Fall 2021 Project Construction Begins
Spring 2023 Project Construction Complete