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3rd Avenue Water main Replacement Project
Stage: Building
Estimated Construction Start: April 2010
Estimated Duration: 90 working days

Preliminary Construction Schedule

3rd Avenue Water main Replacement Project
This project will replace approximately 3400 linear feet of existing 10” asbestos concrete water main with a new 12” ductile iron main.

The project includes tree removal, trail removal, grading, rockery placement, trail relocation, and restoration to accommodate the water main installation.

The north end of the project is at NE Stephens Street and it extends south within the 3rd Avenue NE ROW to NE 144th Pl. The majority of the project is located within the east half of the 3rd Avenue NE ROW.

This water main is one of the City’s two “Feeder” mains. It is an integral portion of the City’s system capable of supplying the western portion of the City with water.

The existing 10” was installed in 1962 and is made of asbestos concrete, a substandard material extremely susceptible to cracking and breaking in the best conditions.

Replacing the current substandard line with a new 12” ductile iron pipe will improve the system’s integrity and capacity. This project was identified in the 2004 Comprehensive Plan as a high priority water project because of the substandard undersized main and the lack of valves required for isolation and repair.

More Information
For more information on this project, please contact:
Shaun Tozer
Project Manager
425.788.3434 ext. 239

Aerial Photograph of project location

DETOUR MAP
3rd Avenue Detour Image
REVISED JUNE 21, 2010
Click on Image for larger map

Recent / Upcoming Activity

  • Week of 7/12/2010: Finish water line, continue irrigation and site grading.
  • Week of 7/5/2010: Continue sidewalk installation and begin irrigation. Continue waterline work from 145th to end of project.
  • 7/6/2010: 9 AM - 6 PM: Water main tie-ins at Miller and Comegys. See Map and Notice for more information.
  • 7/5/2010: No Work.
  • Week of 6/28/2010: Finish rockery and begin sidewalk installation. Waterline installation continues between 145th and Kennedy.
  • Week of 6/21/2010: Water main installation continues south of Kennedy. Rockery and sidewalk grading north of Taylor Street.
  • 6/17/2010: Water main tie-ins. See NOTICE for more information. Click HERE for a map showing affected areas. 3:15 PM: Water Service back on to all locations north of Stephens. 4:00 PM: Resumption of normal water service north of Kennedy is anticipated at approximately 5 PM and resumption of normal water service south of Kennedy is anticipated at approximately 6 PM.
  • Week of 6/14/2010: Rockery work continues south of Dorothy.
  • Week of 6/7/2010: Water main installation south of Taylor Street. Detour route will be revised. Rockery installation begins from Ring to Dorothy.
  • 6/4/2010: No Work Duvall Days
  • Week of 5/31/2010: Crew installing water service taps. Valve cut-ins and service interruptions for some customers on June 2nd.
  • 5/31/2010: No Work Memorial Day
  • Week of 5/24/2010: Storm structures installed. Water main installed south of Dorothy north of Park.
  • Week of 5/17/2010: Water main installation continues. Water main tie-in and service disruptions on May 19.
  • Week of 5/10/2010: Install water main and excavate for rockery / path between Stephens and Dorothy Streets.
  • Week of 5/3/2010: Site clearing, storm installation, and potholing.
  • Week of 4/28/2010: Potholing in Stephens Street. Intersection will be flagged. Clearing continues.
  • Week of 4/26/2010: Site clearing and tree removal begins from Ring Street to Taylor Street. Trench line is pulverized in place throughout the project limits.

Conceptual drawing: Single Rockery Conceptual drawing: double rockery
Image of existing water system Photograph of street with cross-section overlays
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Site last updated July 2, 2010.
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