Sewer and Water Group 774
Background
The City of San Diego (City) has established an ongoing program that mandates the replacement of all aging and deteriorating existing concrete sewer mains and existing cast iron water mains currently in service within the City. These replacements will eliminate future sewer main stoppages, sewer spills and water main breakages. In addition, it will also bring the existing sewer and water mains up to current City standards by upgrading these mains to polyvinyl chloride (PVC) and to a minimum diameter of eight (8) inches.
Project Overview
Initially, this project called for the investigation and potential replacement of approximately 9,422 feet of sewer pipe consisting of vitrified clay (VC) (6,617 feet), concrete (CP)(2,135 feet), and PVC (670 feet) pipe material; and 2,065 feet of water main consisting of CI pipe material. This included the replacement of 44 manholes with pipe depths ranging from 4 to 14 feet. Many of the mains for this project are located within narrow alleys.
As a result of the pre-design effort, the following additions were made to the project scope in an attempt to meet the City's Design Guidelines and minimum sewer slope requirements:
- Replace an additional 4,682 feet of sewer pipe and 21 manholes.
- Install an additional 1,250 feet of new sewer pipe.
- Abandon 1,052 feet of existing sewer pipeline, which includes 115 feet of pipe originally planned for replacement in Ethelda Place.
- Omit from the project 142 feet of replacement sewer pipeline (Ethelda Place.)
- Install an additional 440 feet of new water main.
Schedule
The project is scheduled to begin construction at the end of summer 2011 and estimated to complete in the winter of 2013.
Cost
The construction cost is approximately $3.7 million.
Important Documents:
- Fact Sheet (PDF: 76K)
- Location Map (PDF: 6.4Mb)
Contact Us
If you would like to receive more information about this project, please e-mail us at engineering@sandiego.gov.
