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Construction of Downtown Sewer Upgrade Begins

A portion of 9th Street (from G to L streets) will be reduced to one traffic lane; on-street parking temporarily closed during construction

June 22, 2017

The City of Sacramento Department of Utilities has officially kicked off the first construction phase of its Downtown Sewer Upgrade along 9th Street from G to L streets. 

Pre-construction activities are underway, including investigation and marking of utilities, mobilization of construction equipment and set up of traffic control. Construction to upgrade the sewer pipeline is expected to begin mid to late July and conclude in early spring 2018, with observance of the downtown holiday moratorium (November-December). 

WHEN: June 2017 to Spring 2018 
Monday - Friday: Generally 7 a.m. to 6 p.m. 
Weekend & Night Work: As approved by the City 

WHERE: 9th Street from G to L streets 

WHY: The Downtown Sewer Upgrade is a major component of the City's long-term Combined Sewer System (CSS) Improvement Program. Once complete, the project will increase capacity to reduce CSS outflows, replace old pipes to help the CSS operate more efficiently and add storage to reduce localized flooding. 

Construction for the 9th Street corridor will include five blocks of new 60-inch diameter combined sewer pipeline with both open cut and tunneling activities. Utilization of both these construction methods will help minimize impacts to daily pedestrian, bicycle and vehicular traffic by allowing: 

  • Sidewalks to remain open 
  • Businesses to remain open and accessible 
  • One lane of traffic open at all times 

To accommodate the work area and keep traffic moving, parking within the corridor will be temporarily closed. Work will occur block by block and average two months within each block (see map). 

During construction, flaggers will be stationed at designated areas to maintain safe travel. A construction liaison will also be working closely with property owners and occupants to inform them of upcoming activities and address concerns regarding potential impacts that may include: 

  • Lane closures 
  • Traffic delays 
  • Detours 
  • Noise, dust and vibration 
  • Temporarily closed sidewalks 
  • Loss of parking 

The City understands the inconveniences that construction may cause for motorists and the general public. We appreciate your patience during this important infrastructure upgrade. Thank you for partnering with the City to alter your route when possible during construction of the Downtown Sewer Upgrade. 

For more information, please visit the City of Sacramento project webpage at downtownsewerupgrade.com.


ContactEllen Martin, Public Information Consultant, 916-752-8759