Seattle Park District Opengov #Outreach Event10222026

SPU optional site tour for upcoming Cascades Dam and Lake Youngs drainage design opportunities

Seattle Public Utilities (SPU) is holding an optional site tour to introduce consultants to anticipated dam and drainage design opportunities in King County. - Event: Optional, non-mandatory walking tour of Cascades Dam Facility and Lake Youngs Reservoir Perimeter Dike. - When: October 22, 2026, from 10:00 a.m. to 1:00 p.m.; the tour is scheduled for three hours. - Purpose: Provide a site overview and introduce future consultant opportunities for Cascades Dam and Perimeter Dike Design, and Lake Youngs Perimeter Drain Lining. - Status: This is an outreach event, not a request for qualifications or proposals. No submissions, pricing, products, or vendors are being requested at this time. - Engineering context: An attached options analysis evaluates conceptual seismic improvements. Cascades Dam alternatives have estimated costs of $48.0 million to $100.4 million; perimeter dike alternatives range from $108.2 million to $518.3 million. These are planning estimates in 2023 dollars, not contract values. - Participation and access: SPU encourages participation by woman- and minority-owned business enterprises (WMBEs). The site is secured and access-controlled; attendees should contact the project lead in advance to coordinate ferry transport. The outdoor tour includes walking on gravel. Accessibility requests may be directed to the procurement contact.

Description

Seattle Public Utilities will host an optional, non-mandatory three-hour walking tour of the Cascades Dam Facility and Lake Youngs Reservoir Perimeter Dike. The tour will include an overview of the site's history and functions and information about two upcoming consultant opportunities: Cascades Dam and Perimeter Dike Design, and Lake Youngs Perimeter Drain Lining. The event is intended to familiarize consultants with the facilities and help potential prime consultants and subconsultants form teams ahead of future requests for qualifications. No submittals or pricing are requested for this outreach event; the secured-site address will be provided to those who RSVP.

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