Terminal 91 West Cruise Berth Dredge

Updated Project Authorization - ERL

Linda Springmann – Director, Cruise & Elliott Bay Operations

Julie Yun – Capital Project Manager, Waterfront Project Management

Item No.: 8f_supp

Meeting Date: February 24, 2026

Agenda

• Commission Action Requested

• Project Objectives

• Project Scope

• Schedule Risk

• Project Cost

• Project Schedule

• Questions

Action Requested

Request Commission authorization for the Executive Director to:

Approve the updated project authorization request to include

the Environmental Remediation Liability (ERL) project in the

amount of $250,000 for a total authorization of $550,000 in ERL

funding and $750,000 in Operating Expense for the Terminal 91

West Cruise Maintenance Dredging project. Total authorization

including this request is $1,300,000 and full project is expected

to total $3,250,000.

Project Objectives

• Secure adequate maneuvering room for

both Starboard- and Port-side tie of cruise

vessels to support Commission Order No.

2024-08, committing all Port facilities to be

service-ready for cruise ships to utilize

shore power by 2027 Cruise season.

• Comply with MTCA Agreed Order No.

DE24768 and all MTCA site requirements

for Interim Action Work.

• Minimize construction impacts to the

natural environment and tribal fishing.

Project Scope

• Perform maintenance dredge at Main West channel and

Southeast pier face to restore full under keel clearance to

previously dredge depth of -35 ft MLLW.

– Approximately 3,000 CY will be dredged at Main West channel

– Approximately 500 CY will be dredged at Southeast pier face.

– Dredging at the Southeast pier face will follow all dredging, testing,

and disposal requirements per MTCA Agreed Order No. DE24768.

• Minimize impacts to natural habitat and water quality.

• Minimize construction impacts to tribal fishing.

Project Scope: Dredge Footprint

T91 Pier 91

Main West Channel

Southeast High spots

Project Risks

MitigationImpactProbabilityDescriptionRisk

Proactive engagement with

federal/local agencies, tribes, etc.

to ensure timely progress toward

full permit approval.

HighMed

Federal in-water permit review and approval

turnaround time; unforeseen government

shutdown/resource constraints

Permit Delay

Proactive collaboration with

agencies and GC to establish

protocol for safe

screening/disposal of found

DMM’s.

MedLow

DMM discovery during construction will halt work

until notification to resume work is issued.

Presence of

Discarded Military

Munitions (DMM)

Proactive communication and

coordination between internal

Port staff and GC to manage

resource capacity and phasing.

LowLow

Existing MC-Unit Price Dredging contract with single

general contractor (GC) will be shared across

multiple dredge projects.

Contract Risk

Project Cost

Total ProjectERLEXPENSEItem

$1,050,000$300,000$750,000Previous Authorizations

$250,000$250,000$0Current request for authorization

$1,300,000$550,000$750,000

Total authorization, including this

request

$1,950,000$0$1,950,000

Remaining amount to be

authorized

$3,250,000$550,000$2,700,000Total project cost estimated

Project Schedule

Anticipated DateItem

Q4 2025DORA – Design Authorization

Q1 2026Commission – Updated Design Authorization (ERL)

Q3 2026Design & Permitting Complete

Q4 2026Commission – Construction Authorization

Q4 2026Construction Start

Q1 2027Substantial Completion

April 20272027 Cruise season start

Questions