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The Downtown Sewer Upgrade will involve construction of five blocks of new 60-inch diameter combined sewer pipeline on 9th Street from G to L streets as well as thirteen blocks of new 42 to 48-inch diameter combined sewer pipeline on 3rd Street from I to U streets. Construction along each of the corridors will consist of both open cut and tunneling activities. The City is utilizing both methods in an effort to minimize impacts during construction.

Graphic describing open cut method

Paving graphic

Project News

Pipeline construction along 9th Street is now complete, but crews are still working within the corridor to finalize construction punch list items. Road striping, which is a process that helps keep the road safe and visually aesthetic for the City, still remains to be completed. All work is anticipated to be wrapped up right before the Thanksgiving holiday. General work hours remain 7 a.m. to 7 p.m. (unless otherwise specified) and may cause traffic delays/noise. Please remember, as work finishes up, all businesses along 9th Street remain open.


The Downtown Sewer Upgrade will provide relief from existing conditions and planned development on an over-taxed and aging Combined Sewer System (CSS). This existing system provides sewer and storm drain needs for 7,500 acres in the City including Downtown, East Sacramento, River Park, Land Park, Curtis Park, and Oak Park neighborhoods.

Once complete, the Downtown Sewer Upgrade will provide the following improvements:

graphic showing benefits of sewer upgrade.