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  5. ›Ross Dam Low Level outlet Project

City of Seattle·Washington

Ross Dam Low Level outlet Project

Closes 10/29/2025$500k – $750kRequest for Qualification
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Description

The City of Seattle is seeking qualifications for the Ross Dam Low Level Outlet Project, which involves providing multidisciplinary engineering consulting services for the project. The scope of work includes investigation and site characterization, options analysis for tunnel dewatering and environmental cleanup, engineering design, environmental resource assessments and permitting, bid phase services, project management, and design support during construction. The project is expected to commence in 2025 and continue through 2028, with a maximum contract value of approximately $750,000. • The project requires a team with experience in architectural and engineering services, including submerged/aqueous remediation of contaminants, environmental remediation, and large-scale water treatment systems. • The consultant must have a local office with project staff within 400 miles of Newhalem, WA, and available to complete all on-site work. • The consultant's subject matter experts must be professionally accredited or licensed in their respective fields and have a minimum of three years of relevant professional experience. • The project involves multiple tasks, including investigation and site characterization, options analysis, engineering design, and environmental resource assessments and permitting. • The consultant will be required to provide bid phase services, project management, and design support during construction. • The project has a strict timeline, with deadlines for questions, responses, and contract award.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Diana Macanlalay(Procurement Grant & Contract Specialist)

[email protected]

(206) 386-4534

Key dates

Opened
8/29/2025
Questions due
10/8/2025
Pre-bid meeting
9/16/2025
Closes
10/29/2025
Projected award
11/18/2025
Duration
36 months

Last updated

Details

Type
Request for Qualification
Industry
Engineering Services
NAICS
541620
Solicitation №
767061597

Budget estimate

$500,000 – $750,000

Based on the project description, the estimated budget for this project is between $500,000 and $750,000. This estimate is based on the maximum contract value stated in the project description and the scope of work, which includes multiple tasks and services. The actual budget may vary depending on the consultant's proposal and the city's negotiation.

AI estimate from the solicitation

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