Marine Outfall Extension Project
MARINE OUTFALL EXTENSION -- (updated July 23, 2010)
Link to U.S. Coast Guard website for Notice to Mariners information
An Open House was held on June 15, 2010 from 4:00 p.m. and 7:00 p.m.
A second public outreach presentation was held on July 13 from 4:00 p.m. to 7:00 p.m. City staff was present to answer questions and provide project information.
Download aerial schematic and project limits.
This project will consist of the replacement of the undersized existing 10-inch outfall pipe with 5,800 ft. of 24-inch High Density Polyethylene (HDPE) outfall pipe. The project limits will begin at the recently constructed Pump Station 2A located at the Bogue Viewing Platform and will extend to and under the Coast Guard owned sand spit and continue out to the outer Colvos Passage. Beginning in July 2010 and expected to continue through March 2011, this major and unusual project is part of a multi-phased wastewater treatment upgrade begun by the City in 2008. Phase 1 was the Onshore Outfall Project along North Harborview Drive completed in 2008. Phase 2 is the expansion of the Wastewater Treatment Plant facility, currently underway, which will expand sewer capacity for the community. Phase 3 is the Outfall Project which will improve capactiy in the near future while also improving the environmental impact of Gig Harbor Bay. An additional treatment plant expansion is planned in the future as the final phase.
The City has executed the construction contract with Advanced American Construction. In-water construction wil begin in July 2010.
ANTICIPATED WORK SCHEDULE -- The contractor has completed driving pile for construction of the drilling platform inside the harbor and started driving pile for construction of the drilling platform outside the harbor. This work will continue for another week before they move to begin placing drilling equipment of the platforms.
Mid-June 2010 -- The contractor will mobilize the crane barge, material barges, and working vessels into Gig Harbor Bay.
Mid-July thru Sept 2010 -- Onshore and buried pipe phase. The contractor has started driving pile for construction of the drilling platform inside the harbor. This work will continue for another week before they move to begin pile driving for the platform outside of the harbor.
July thru Sept 2010 -- Horizontal directional drilling staging set-up and construction phase at the sandspit (entrance to Gig Harbor Bay).
Sept thru Oct 2010 -- Installation of the outfall pipe outside Gig Harbor Bay in Colvos Passage.
Oct 2010 thru Jan 2011 -- Installation of the outfall pipe inside Gig Harbor Bay.
Feb 2011 -- Final mitigation work, clean up and demobilization.
May 31, 2011 -- Final acceptance of the Project.
PUBLIC NOTIFICATION PROCESS TO DATE -- On February 10, 2010, a initial project notification letter identifying the initial stages of pre-construction work was mailed to local and regional area marina and slip owners, and properties located along Gig Harbor Bay. On June 4, 2010 an Open House notification was mailed. The Open House was held on June 15, 2010. A combined public outreach presentation is scheduled on July 13 at Jerisich Dock prior to the summer concert from 4:00 p.m. to7:00 p.m. If you are interested in receiving project updates email notices, please send an email request to Terri Reed.
ANTICIPATED PROJECT SCHEDULE (preliminary) -- The Army Corps of Engineers and Washington State Department of Fish and Wildlife have given specific dates throughout the year when 'in water work' may be conducted. The first allowable working day will be July 9, 2010. The majority of the work will likely be completed prior to the end of September 2010. All work associated with this project will be required to be completed by May 31, 2011.
PRIMARY PROJECT CONTACT -- Construction Inspector George Flanigan at (253) 853-7695. The City will hold public informational meetings and circulate periodic updates by email. If you are interested in receiving these notices, please send an email request to Terri Reed. (Be sure to state the name of the project that you are interested in.)
Project Engineer: Jeff Langhelm, P.E.