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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

Crews to Remove Fence & K-rail Along 9th Street Plus Implement New Daily Traffic Control
The City has coordinated with the contractor to have crews work Saturdays and longer weekday shifts to complete remaining work as soon as possible. Removal of fence and k-rail will occur in a phased, block by block, approach from August 6-20 and also include removing sewer bypass equipment as well as conducting temporary pavement. After these activities from mid to late August, remaining sewer laterals and storm drain work will continue to occur block by block on the east side of 9th Street from I to L streets using temporary traffic control cones that will be setup and taken down each day. Final paving and striping of entire corridor is anticipated to be complete by late September. For more details, please see the latest construction update on the Project News page.


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.