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9611 SE 36th Street
Mercer Island, WA 98040
Phone: 206.275.7600
Fax: 206.276.7663
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2020 Water System Improvements Project

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Project Status
  • June 15, 2020 Update: ​The contractor, Oceanside Construction, will be mobilizing and setting up today. The focus will be on the Fruitland Landing area until the second week of July.

Project Details

Neighborhood: Schedule A&C Projects - SE 34th St, 96th Ave SE, and 97th Ave SE (near Fruitland Landing); Schedule B Projects - 87th Ave SE from SE 42nd St to SE 44th St (next to St. Monica School).

Work Locations: View a Vicinity Map

Project Type: Water main replacement, associated water system upgrades, adjacent storm drainage work.

Description: This project combines two water system improvements into one capital project, to maximize efficiency. The watermains in this neighborhood are aging and will be replaced with 1,400 feet of larger diameter ductile iron pipe. Crews will also replace the water service lines to 34 homes and upgrade 8 fire hydrants. Following this work, the contractor will replace and install approximately 180 linear feet of stormwater piping and 6 associated catch basins. Roadway restoration and paving will be conducted before final completion.

Project Timeline: Starting mid-June 2020, and end after 75 working days in approximately September. Status updates will be posted above.

Estimated Budget: Oceanside Construction submitted the winning bid ($705,841) and has completed similar water utility projects successfully in Renton and Kirkland, and previously in Mercer Island.

Project Status: To help keep area residents informed of our construction progress, we will post project updates to this site on a regular basis (see top of page).

Impact to Residents: Affected residents adjacent to project areas received a letter from the City of Mercer Island. Four water shutoffs are planned: we will hang a reminder notice on your front door the day before any water shutoffs and street closures.
Note: please notify the City now if you have special landscape plants, irrigation lines or invisible fencing, particularly if they are located near the meter box. Also, keep everyone safe by keeping kids and pets away from the construction zones.

Background: The City of Mercer Island evaluates our water system on a regular basis to ensure that the infrastructure remains in good condition and maintains adequate capacity to provide water to customers.  The water mains in this area are aging and in need of upgrades which will improve the systemís structural integrity and reliability, and improve water flow for fire suppression.

Want to learn more?  Read our FAQ here
Contact:  Rona Lin, P.E., City of Mercer Island Utilities Engineer: (206) 275-7806 or




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