Item No.: 8g_Supp Meeting Date: October 27, 2026 Terminal 91 West Cruise Berth Dredge Construction Authorization Linda Springmann - Director, Cruise & Elliott Bay Operations Julie Yun - Capital Project Manager, Waterfront Project Management Agenda • Commission Action Requested • Project Objectives • Project Scope • Project Risks • Project Cost • Project Schedule • Questions 2 Action Requested Request Commission approval of the project budget in the amount of $2,050,000 for the construction of the Terminal 91 West Cruise Maintenance Dredging project. This request will result in a total project authorization of $3,350,000, including $550,000 in Environmental Remediation Liability (ERL) funding. 3 Project Objectives • Work alongside the T91 Cruise Shore Power Extension project to meet Commission Order No. 2024-08 for full shore power connectivity at T91 cruise berth by 2028 Cruise season start. The maintenance dredge project will contribute toward readiness by providing adequate maneuvering depth for both Starboard- and Port-side tie of cruise vessels by 2027 Cruise season start. • Comply with MTCA Agreed Order No. DE24768 and all MTCA site requirements for Interim Action Work. • No construction impacts to tribal fishing or Cruise Operations. 4 Project Scope • Perform maintenance dredge of approximately 3,000 CY at Main West channel to restore full under keel clearance in the berthing area to previously dredge depth of -35 ft MLLW. • Minimize impacts to natural habitat and water quality. • Complete all survey and reporting requirements per MTCA Agreed Order No. DE24768 and all MTCA site requirements for Interim Action Work. 5 Project Scope: Dredge Footprint Dredge area Note: Previously presented pier face high spots were removed from project scope due to the following: 1. Adds critical schedule risk to T91 Cruise Shore Power Extension project due to shared construction footprint. 2. Confirmation that high spots have no impact to standard cruise operations. Cruise ship berthing area (1200'L x 300'W) 6 Project Risks Risk Description Permit Delay Federal in-water permit review and approval turnaround time; unforeseen government shutdown/resource constraints Discovery of Discarded Military Munitions (DMM) DMM discovery during construction will halt work until notification to resume work is issued. Contract Risk Existing MC-Unit Price Dredging contract with single general contractor (GC) will be shared across multiple dredge projects. Probability Low Low Low Impact Low Moderate Low Mitigation IAWP approved by Ecology. SEPA DNS and NWP-38 approval eta early October. Continued engagement with federal/local agencies, tribes, etc. to ensure awareness of project changes. Schedule buffer in permitted work window to absorb unforeseen permit delays. Low risk of encounter based on discovery data in dredge area. Port to provide DMM training and safe screening/disposal protocol for GC to implement if DMM's are found. Protocol will implement a construction- and operation-free exclusion zone. Proactive communication and coordination between internal Port staff and GC to manage resource capacity and phasing. Work Authorization negotiation in progress. 7 Project Cost Item EXPENSE (N10739) ERL (N10851) Total Project Previous Authorizations $750,000 $550,000 $1,300,000 Current request for authorization $2,050,000 $0 $2,050,000 Total authorization, including this request $2,800,000 $550,000 $3,350,000 Remaining amount to be authorized $0 $0 $0 Total project cost estimated $2,800,000 $550,000 $3,350,000 8 Project Schedule Item Anticipated Date DORA - Design Authorization Q4 2025 Commission - Updated Design Authorization (ERL) Q1 2026 Design & Permitting Complete Q3 2026 Commission - Construction Authorization Q4 2026 Construction Start Q4 2026 Substantial Completion Q1 2027 2027 Cruise season start April 2027 9 Questions 10