Renton Sanitary Sewer Replacement, Phase 1 and 2

Contact Information
Joe Stowell
Wastewater Utility Engineering Manager
Renton, WA 98057
425-430-7241

The Wastewater Utility implements an annual sanitary sewer rehabilitation and/or replacement project as part of its ongoing capital improvement program. The replacement project consists of various sewer main, manhole, and side sewer replacements. The sewer infrastructure to be replaced was chosen based on the severity of existing issues found through field observations and inspections. The project is located within city right-of-way and on private property within city easements.

This project will fix or replace defective sanitary sewer facilities in seven different sites in the north half of Renton and is divided into two phases. Phase 1 is comprised of right-of-way work for Sites 1, 2, 3 and 6. Phase 2 is comprised of private and right-of-way work for Sites 4, 5 and 7.

Contract Award Information

Design
Council awarded the professional services contract to Carollo Engineers, Inc. in the amount of $443,709 for design for the 2022 Renton Sanitary Sewer Replacement* project at its regularly scheduled meeting on March 21, 2022.

This agreement is for engineering services to produce construction plans and specifications needed for the project. The scope of work for this design phase includes:

  • A project area survey and creation a project base map.
  • Geotechnical explorations and analysis.
  • An alternatives analysis of various project elements.
  • Summarizing the preliminary design findings and alternative analysis in a Basis of Design Report.
  • Design of the replacement of the sewer mains, manholes, and service laterals selected for the project.
  • Providing permitting and public outreach support during the design process.
  • Supporting the City during the bidding process.
An amendment to the agreement with Carollo Engineers was made to split the project into phases and produce two separate design packages. The contract amount was increased by $90,043 from $443,709 to $553,752, plus any applicable state and local sales taxes.

*This project is now called the Renton Sanitary Sewer Replacement, Phase 1 and 2.

Project Description

The scope includes the construction of approximately 1,600 lineal feet (LF) of 8-inch sewer main, approximately 120 LF of 12-inch sewer main, approximately 13 sewer manholes (seven manholes to be abandoned), and approximately 32 service laterals (24 service laterals to be abandoned). These quantities will be further refined during the alternative analysis and design.

Project Update

Project Update for Phase 1
The project is planned to be bid for construction in the first quarter of 2024. Construction is anticipated to begin in the second quarter of 2024. 

Project Update for Phase 2
The bid for construction is planned to begin in the second quarter of 2024. Construction is anticipated to begin in the third quarter of 2024.

Site Descriptions

Site 1: Adjacent to 1521 Kirkland Avenue NE
Installation of new internal drop connection in MH5990 for the incoming sewer from the north.

Site 2: NE 4th Street near the eastern driveway of the Cedar Park Apartments.
Installation of a new manhole at the intersection of two existing sewers to allow the abandonment of the failing downstream sewer main on NE 4th Street.

Site 3: 3500 block of NE 7th Place
Replacement of the failing sewer main and side sewer stubs between the existing sewer manhole near 3500 NE 7th Place and the manhole near the intersection of NE 7th Place and NE 6th Place.

Site 4: 3900 & 4000 blocks of NE 6th Street and the 600 block of Tacoma Avenue NE
Installation of new sewer main lines in NE 6th Street and replacement of the existing sewer main in Tacoma Avenue NE. Work also includes connection of the existing homes, which are currently connected to the existing sewers, into the new sewer mains. Abandonment of the existing sewer mains that are in easements in the adjacent properties’ backyards.

Site 5: 3300 & 3400 blocks of NE 6th Street
Installation of new sewer main lines in NE 6th Street. Work also includes connection of the homes on the north side of NE 6th Street into the new sewer main lines. Abandonment of the failing sewer main lines located in the easement along the north property lines of the affected properties.

Site 6: Intersection of NW 7th Street and Taylor Avenue NW
Elimination of backwater problems in MH0579. Construction method to-be-determined.

Site 7: 700, 800, 900 and 1000 block of Monroe Avenue NE
Replacement or Rehabilitation of the existing sewer main located along the west property lines of those homes on the west side of Monroe Avenue NE.

Vicinity Maps

Site 1: Adjacent to 1521 Kirkland Avenue NE
Site 2: NE 4th Street near the eastern driveway of the Cedar Park Apartments
Site 3: 3500 block of NE 7th Place
Site 4: 3900 & 4000 blocks of NE 6th Street and the 600 block of Tacoma Avenue NE
Site 5: 3300 & 3400 blocks of NE 6th Street
Site 6: Intersection of NW 7th Street and Taylor Avenue NW
Site 7: 700, 800, 900 and 1000 block of Monroe Avenue NE

City of Renton | All Rights Reserved | Powered by CivicLive | © 2024 Civiclive. | Disclaimer