This Solicitation opportunity from Washington was posted on September 26, 2025. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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West Duwamish Wet Weather Storage

Closed

001462,7State & Local

Submission Closed09/30/2025, 12:00:00 AM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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NAICS: 221320

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NAICS: 221320

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Waste Water Treatment Plant Services

Solicitation # FA448627Q0002

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FA4486 765 Abs Conf

POSTED

16 days ago

DEADLINE

in 26 days

AI Contract Overview

This contract involves the construction of the West Duwamish Combined Sewer Overflow (CSO) Control Facility and the West Duwamish Interceptor Diversion Structure, aimed at improving stormwater and wastewater management in the region. The project also includes modifications to the existing Terminal 115 Overflow Structure and enhancements to the mechanical, electrical, and instrumentation and control (I&C) systems at the West Michigan Street Regulator Station. The scope of work is substantial, with an estimated value ranging from $50 million to $100 million, reflecting its complexity and importance for regional infrastructure resilience. The project is scheduled for solicitation with a response deadline of September 30, 2025, and is managed by King County, Washington. It is open to qualified entities under the North American Industry Classification System (NAICS) code 221320, which pertains to water supply and irrigation systems. The primary point of contact for this project is Julie Thiele, who can be reached via email. The project aims to enhance the capacity and reliability of the sewer system, addressing existing overflow issues and upgrading critical infrastructure to meet current and future environmental standards.

General Info

Agency

Washington → King County

NAICS

221320 - Sewage Treatment Facilities

Place of Performance

WA, USA

Set-Aside

NONE

Documents

KC001462 Addendum 2 for West Duwamish Wet Weather Storage

amendment

High

KC001462 Addendum 4 for West Duwamish Wet Weather Storage

amendment

High

KC001462 Addendum Number 5 - West Duwamish Wet Weather Storage

amendment

High

KC001462 - Addendum Number 7

amendment

High

KC001462 Bidding Schedule for ITB

bidding-schedule

High

KC001462 Bidding Schedule Worksheet

bidding-schedule

High

KC001462 West Duwamish Wet Weather Storage Addendum 1

amendment

High

KC001462 West Duwamish Wet Weather Storage Addendum 3

amendment

High

KC001462 West Duwamish Wet Weather Storage - Addendum 6

amendment

High

KC001462 West Duwamish Wet Weather Storage ITB Volume 1

itb

High

KC001462-itb-vol-2.pdf

AI Contract Breakdown

Uniform Contract Format

Timeline

PhaseClosed

PostedSep 26

Solicitation

Response DeadlineSep 30

Deadline has passed

Submission Closed

09/30/2025, 12:00:00 AM UTC

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Organization & Contact Information

AgencyWashington → King County

Contacts1 person available

OfficeN/A

Organization / AgencyWashington → King County

Office AddressN/A

Contacts

Julie Thiele

contact@example.gov

Full Description

Construct West Duwamish Combined Sewer Overflow (CSO) Control Facility and West Duwamish Interceptor Diversion Structure, modify existing Terminal 115 Overflow Structure and make improvements to existing mechanical, electrical, and instrumentation and control (I&C) systems to existing West Michigan Street Regulator Station.