Hayes St. Regulator & CSO Controls

Background and Purpose:

  Numerous large capacity sewer trunk lines that serve a majority of north Everett, converge in the vicinity of East Marine View Drive (EMVD) and Hayes Street. From there most flow is further conveyed to the wastewater treatment plant to the east for treatment. See Exhibit G5 - Hayes Street Existing CSO Overview (PDF)

Most of north Everett has a “Combined Sewer” system; meaning sewage and Stormwater runoff are collected and conveyed in the same pipes. Existing facilities consist of various flow control structures (CSO regulators) that direct a majority of the flow to the treatment plant, but excess wet weather flow must periodically be diverted to the Snohomish River. Discharges to the Snohomish River are called “Combined Sewer Overflows” (CSOs), and Everett has a regulatory limit on such discharges. There are three CSO regulators in this project area called: Snohomish River Outfall (SRO) numbers one, two and three. In the past Everett has been unable to consistently meet its regulatory limit. This project will increase the flows to the treatment plant and reduce the discharges to the Snohomish River to satisfy the regulatory requirement.

Construction and Coordination with Businesses:

Construction is anticipated to begin in May 2017 and to be complete by December 2017. The work consists of installation of larger pipes in Hayes Street and in the connecting alleyway to the south, modification of some existing flow control structures and installation of several new structures (CSO regulators). See Exhibit G6 - Hayes Street Proposed CSO Overview (PDF)

The project has been planned and will be constructed in a manner intended to minimize impacts to local businesses and property owners. Access and parking impacts will be mitigated by implementation of a temporary alternative access road and temporary added parking along EMVD. The City has performed advance communication and coordination with the affected businesses and identified various mitigation measures that will be performed by the City and Contractor. When the construction Contractor is ready to proceed, affected businesses will be provided additional information about the schedule and contact name and phone number for questions and other coordination issues.

Schedule:  Detailed schedule to be provided later.

Permits: 

This project is permitted in accordance with the State Environmental Policy Act (SEPA). The Everett Planning Department has completed the process and issued a Mitigated Determination of Non-Significance (MDNS). SEPA 16-036 Final Mitigated Determination of Non-Significance (PDF)

Dave Voigt, PE
Project Manager
Email
Phone: 425-257-8983

Tom Fuchs
Construction Manager
Email
Phone: 425-257-8931

Contact Us

  1. Dave Voigt, PE
    Project Manager
    Email
    Phone: 425-257-8983

    Tom Fuchs
    Construction Manager
    Email
    Phone: 425-257-8931

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