Item No.: 10c_supp Meeting Date: November 17, 2026 Terminal 91/Pier 66 Cruise Shore Power Extension Milestone 2 Post-Validation Authorization Shore Power Project Purpose • In July 2024, Commission Order No. 2024-08 was passed mandating that all homeport cruise ships connect to shore power by 2027. • To meet the mandate, the existing shore power systems need to be extended at Pier 91 and Pier 66. - Currently, the shore power cables cannot reach from the berth connection point to plug-in locations on all shore power capable ships. • This project will provide maximum flexibility in how ships with different shore power configurations berth at the pier so they can connect to shore power. 2 Action Requested • Request Commission authorization for the Executive Director to approve funding to execute a Post-Validation Amendment to the alternative public works Progressive Design Build contract, for the T91/P66 Cruise Shore Power Extension project to further advance design and complete the development and negotiation of a Guaranteed Maximum Price for Milestone 2 to rehabilitate DU #9202 and complete the Pier 91 (P91) west berth shore power extension. • Total requested for this action is $2,750,000 for a total current project authorization of $72,880,000, and an estimated total project cost of $116,480,000. 3 Details of Request • The contract will now proceed with two (2) separate milestone scopes for which separate GMPs will be negotiated: - Milestone 1 (2027) - Currently in Construction • Completion of Pier 66 shore power extension • Completion of Pier 91 east berth shore power extension • Limited deck panel replacements - Milestone 2 (2028) - Post validation design in today's request • Completion of the Pier 91 west berth shore power extension • Full rehabilitation of Pier 91 west dock *Construction funding in future request 4 Pier 91 Milestone Scopes Milestone 1 (2027) Milestone 2 (2028) B C D E B B 5 Estimated Cost Breakdown P66 T91 (Shore Power) 830,000 $ Milestone 1 Planning through Validation $ GMP Development Early Work Amendments Construction Final GMP $ 1,200,000 $ 700,000 $ 13,074,000 Milestone 2 (Incl DU9202 rehab) Planning through Validation GMP Development Construction Final GMP (future) T91 (Dock Rehab) 1,770,000 Total $ 2,600,000 $ 2,850,000 $ 2,800,000 $ 17,220,000 $ 950,000 $ 1,700,000 $ 17,870,000 $ $ $ 5,000,000 5,200,000 48,164,000 $ $ $ $ $ $ 1,166,000 2,750,000 466,400 1,100,000 $ 17,876,000 1,166,000 1,650,000 $ 25,724,000 This Request $ 2,750,000 $ 2,750,000 $ 43,600,000 Material Pre Procurements Watts (both sites, both milestones) $ 1,000,000 TOTAL $ 16,804,000 $ 7,000,000 $ 51,082,400 $ $ 48,593,600 8,000,000 $ 116,480,000 6 Project Risks RISKS DESCRIPTION PROBABILITY IMPACT MITIGATION Constrained Schedule Project schedule is highly constrained by regulated work windows High High Utilize Progressive Design Build project delivery to accelerate timeline. Pre-purchase of long-lead items. Seattle City Light Terminal 91 Operations Agreement Existing operations agreement between cruise lines and SCL does not account for increased connections during peak power usage times during the week. Med High Early engagement with SCL to do system impact study and begin negotiation of agreement terms for power delivery. Supply chain uncertainty Supply chain logistics could delay project delivery. Tariffs could impact ability to procure long-lead electrical equipment by 2027 and create uncertainty in pricing. Med High Early execution of Watts contract to begin procurement of long-lead shore power equipment in advance. High Med Identification of all on-going and upcoming construction work at Terminal 91. Requirement of logistics plan by PDB to account for constraints of other projects. Low High Tribal consultation and negotiation. Adjustment to means and methods. Coordination with other projects at Terminal 91 Tribal Concurrence There are many other projects scheduled on Pier 91 with similar timelines to the cruise shore power project: gangways, water line replacement, dock rehabilitation, west berth dredging. Constrained schedule requires some work during tribal fishing season. Concurrence received at T91 for current construction approach. 7 Cone of Certainty We are here: Milestone 2 GMP Development We are here: Milestone 1 Construction Start 8 Next Steps • • • • Milestone 1 Construction Q4 2026 - Q2 2027 Milestone 2 Validation and GMP development Q4 2026 - Q3 2027 Milestone 2 Commission Authorization Final design/Construction Q3 2027 Milestone 2 Construction Q4 2027 - Q2 2028 9 Questions? 10 Appendix 11 Project Areas - Pier 91/Pier 66 New shore power connections Area Existing Shore power system New shore power connections Area Pier 91 Pier 66 Pier 66 NewBollard shoreUpgrade power connections Potential Mooring Existing shore power system Pier 91 12 Example Terminal 91 Berthing Analysis 13 Example Terminal 91 Mooring Analysis 14 New 100ton bollards Pier 91 Milestone 1 (2027) DU #9202 - Bull rail and deck panel rebuild New 100ton bollards Replacement Watts Shore Power Equip. Replace existing sawtooth box New east berth sawtooth boxes Conduit pathways 15 Pier 66 Milestone Scope Milestone 1 (2027) A 16 Pier 66 Milestone 1 (2027) New sawtooth box Conduit pathways below deck 17 Replace existing sawtooth box Pier 91 Milestone 2 (2028) DU #9202 Structural Solution New west berth sawtooth boxes DU #9202 - Bull rail and deck panel rebuild West berth shore power conduit pathways 18