Downtown Utility Improvement Project

Contact Information
Utility Systems Division Engineering Team
Renton, WA 98057

DUIP Project Map

Click to download larger image 

This project has been completed.

The Renton Downtown Utility Improvement project map shows a detailed utility pipe layout of the project.

The Downtown Utility Improvement Project addresses current and support future development needs within the downtown core. This project adds approximately 5,600 LF of new stormwater pipes, 8,000 LF of new and cure-in-place sanitary sewer pipes, and 3,300 LF of new water lines along these streets:

  • South Second Street

  • South Third Street

  • Mill Avenue South

  • Morris Avenue South

  • Whitworth Avenue South and Shattuck Avenue South

The project also includes the installation of a large utility vault at the intersection of SW Sunset Boulevard and Rainier Avenue South in order to facilitate access for maintenance and rehabilitation.  Additionally, this project requires, where impacted by new utilities, the replacement of curbs, gutters, sidewalks and ramps.

The value created by this project for City residents and businesses, along with other projects in the downtown, includes but is not limited to accommodation of more development and economic activity, landscape beautification, improved capacity, and reduction of flood hazard due to major storm events.

Additional street reconfiguration, including converting South Second and South Third streets to two-way operations, along with intersection and streetscape improvements, will be made in future years as funding is secured.

Frequently Asked Questions

How much did the project cost? Where did the funding come from?

Improvements have been funded through the Surface Water, Water and Wastewater utilities capital improvement programs, which are in turn funded by utility rates. Total construction costs for the project were $13 million. These improvements and future redevelopment are expected to increase long-term property values in the downtown market.

How does this project relate to other ongoing public works downtown?

Wells Avenue South and Williams Avenue South Conversion Project. This Project began in spring 2020 and ended in spring 2022. The project converted Wells Ave S and Williams Ave S to two-way traffic with the intent to improve connectivity and access in downtown Renton, making it a more vibrant and livable area.

Renton Connector ProjectThe Renton Connector project will install a continuous non-motorized facility along Burnett Ave S (westside) between S 2nd Street and S 5th Street via separated walkways, protected bicycle lanes (cycle track), and a multi-use path. This project will also include landscaped medians, reconfigured public parking areas, curb ramp upgrades, and traffic signalization improvements. The design is scheduled summer 2022 - summer 2024, with construction dependent on funding

Downtown Core Streetscape Improvement Project (born out of the Civic Core Action Plan). The Downtown Core Streetscape Improvement Project Phase 1 provided improvements completed in 2021 to Wells Avenue S between S 2nd Street and S 3rd
Street, including new scored sidewalks, lighting, trees, landscaping, street furniture, street banners, flower baskets, and holiday lighting. Phase 2 will include similar improvements to Williams Avenue S between S 2nd Street and 3rd Street. The Phase 2 improvements are in design (fall 2022 – spring 2023) and construction is anticipated in mid to late-2023 or 2024.

South Second Street and South Third Street Two-Way Conversion Project. This project is not yet funded. There is no estimate of when it will take place.


October 2021

  • 10/22/2021 - Downtown Renton Construction: Wells Ave S and Williams Ave S open to one-way traffic
  • 10/15/2021 - Downtown Renton Construction: Plan to continue paving S 3rd St next week
  • 10/7/2021 - Downtown Renton Construction: S 3rd St to be closed during the day from Burnett Ave S to Main Ave S for paving
  • 10/1/2021 - Downtown Renton Construction: Preparing to pave S 3rd St

September 2021

  • 9/24/2021 - Downtown Renton Construction: Utility work continues in downtown Renton
  • 9/17/2021 - Downtown Renton Construction: Utility work continues in downtown Renton
  • 09/10/2021 - Downtown Renton Construction: Upgrades resuming on Houser Way S
  • 09/03/2021 - Downtown Renton Construction: Progressing intersection work in downtown Renton

August 2021

  • 08/27/2021 - Downtown Renton Construction: Progressing intersection work in downtown Renton
  • 08/20/2021 - Downtown Renton Construction: Progressing intersection work in downtown Renton
  • 08/16/2021 - Downtown Renton Construction: Intersection work in downtown Renton
  • 08/11/2021 - Downtown Renton Construction: Night work at intersection of S 3rd St and Rainier Ave S.
  • 08/06/2021 - Downtown Renton Construction: Plan ahead for detours with intersection work

July 2021

  • 7/30/2021  - Downtown Renton Construction: Reopening Shattuck Ave S & S 3rd St intersection tonight
  • 7/27/2021 - Downtown Renton Construction: Watch your step; avoid the sticky sealant!
  • 7/23/2021 - Downtown Renton Construction: Shattuck Ave S Intersection Work and S 3rd St Road Closure
  • 7/21/2021 - Renton Downtown Utility Improvement: Shattuck Ave S Intersection Work and S 3rd St Road Closure
  • 7/16/2021 - Downtown Renton Construction: Time for the clocktower to come home!
  • 7/9/2021 - Downtown Renton Construction: Sidewalks on S 3rd St have reached substantial completion
  • 7/6/2021 - Downtown Renton Construction: Temporary two-way cul-de-sac on Wells Ave S
  • 7/2/2021 - Downtown Renton Construction: Continuing to progress utility and sidewalk work

June 2021

  • 6/25/2021 - Downtown Renton Construction: Sunny days lead the way to the farmer’s market.
  • 6/18/2021 - Downtown Renton Construction: Follow the “Yellow Brick Road” for business access during construction
  • 6/17/2021 - Downtown Construction - Overnight Closure of S 3rd Street
  • 6/11/2021 - Downtown Renton Construction: Continuing utility and sidewalk work in downtown Renton
  • 6/3/2021 - Downtown Renton Construction: Storm Utility work on S 3rd St

May 2021

  •  5/21/2021 - Downtown Renton Construction: Renton Farmers Market is returning for its 20th season
  • 5/14/2021 - Downtown Renton Construction: The clocktower takes a ride to its new temporary home
  • 5/7/2021 - Downtown Renton Construction: Temporarily relocating the clocktower and continuing utility work in downtown Renton

April 2021

  •  4/30/2021 - Downtown Renton Construction: Renton Farmers Market is returning for its 20th season
  • 4/23/2021 - Downtown Construction: Update on downtown Renton intersection work
  • 4/16/2021 - Renton Downtown Utility Improvement Project Update

Webinar Recording

Miss our March 11, 2021, webinar? Here it is:


Along with presentation slides.

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