Juanita Bay Pump Station Replacement Project
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April 2008 -- Work is progressing on the building roof and exterior walls.

Cranes place steel roofing atop the new Juanita Bay Pump Station

Masonry work continues on the pump station's south wall

Crews work to install the pump station roof

Pump station interior

November 2007 -- King County’s contractor is now building the above ground pump station structure. Crews will continue electrical work and will install the pump station’s heavy machinery (pumps, motors, generators and odor control equipment) through the winter.

Crews built framing to shape and stabilize the new pump station's walls

Concrete is pumped from a truck to a hose directly above the framing to build the new pump station's walls

Crews pouring a section of wall

February 2007 -- King County crews began removing steel sheets that form the microtunnel machine access shaft in the Juanita Beach Park construction area.

October 2006 -- Reinforcment of the foundation walls continues and the microtunneling of a new sewer pipe under Northeast Juanita Drive is now complete. >> Back to top.

Crews used a crane to remove the microtunnel boring machine from within the new Juanita Bay Pump Station foundation

The new sewer pipe's protective casing extends into the foundation.  Workers use grout to stabilize and waterproof the casing

A hydraulic jack, used to install the protective casing underneath NE Juanita Bay Dr., is removed from the staging area

Microtunneling machine being retrieved at the pump station site

Workers install rebar to reinforce the station foundation wall

The microtunnel boring machine will break through the foundation wall (lower right) and be extracted

A segment of the new sewer casing being prepared for installation below NE Juanita Dr.

July 2006 -- Over 80 secant piles have been drilled to create the shoring and part of the foundation wall for the new pump station. The wall is supporting the surrounding soil during excavation and construction of the new pump station. >> Back to top.

King County representatives examine the 82 secant piles constructed to create the shoring and part of the foundation

Crews excavating over 10,000 cubic yards of soil

A look inside the pump station foundation

Construction crew member taking measurements during excavation

Surveyors taking weekly measurements

Crews also excavated a 25-foot wide by 40-foot deep access shaft in the staging area to accom-modate the microtunnel boring machine