Item No.: 8g_supp
Meeting Date: April 28, 2026

Pier 91/ Pier 66 Cruise Shore Power Extension Project
Early Work Amendment Authorization for Progressive Design Build Contract

Action Requested
Request Commission authorization for the Executive Director to approve funding to execute an Early
Work Amendment to the alternative public works Progressive Design Build contract, MC-0322060, for
the T91/P66 Cruise Shore Power Extension (C801983) (includes C802116 - P91 South Bollards) project to
procure long-lead materials in advance of the Guaranteed Maximum Price Amendment. Total requested
for this action is $5,200,000 for a total project authorization of $20,650,000.

2

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.

3

Details of Request
•

Skanska USA Building Inc. (Skanska) has completed 60%
design of the T91/P66 Cruise Shore Power project during
GMP Development. Long lead materials were identified for
early procurement to ensure on-time delivery to meet
project deadlines:
- P91
• Procure (93) pre-cast deck panels that will be
replaced underlying preferred conduit pathway
- Identified for replacement due to material
condition during Validation and Design
• Procure (12) additional pre-cast deck panels currently
rated as "critical" condition with operational load
restrictions.
• Procure all electrical cabling for east berth and west
berth shore power (22- week lead time plus 1-week
for delivery)
- P66
• Procure all electrical cabling
4

•

Pier 91 Status

60% Design complete. GMP development in ongoing.
- The conduit route through the ballast on the wharf close to bulkhead was identified as the optimal
solution.
• This approach was selected based on:
- Cost efficiency,
- Straightforward construction process
- Absence of in-water permitting requirements
- Minimal risk of encountering unforeseen subsurface features
- (2) new sawtooth boxes are recommended on the west berth at footmark 450' and 790'
- (2) new shore power connection points are recommended on east berths at footmark 450' and 849'
- Replacement of the existing sawtooth boxes on the east and west berths to modernize the equipment
and allow for maximum flexibility in the use of the mobile cable positioning devices (CPD).
- (2) new 100-ton bollards near the 1,200' footmark of the west berth
- (2) new 100-ton bollards on south end of P91
- Replacement of (93) deck panels underlying preferred conduit pathway
- Replacement of (12) "critical" condition deck panels on P91 within project footprint
- Replacement of Watts shore power equipment at the end of service life
5

Pier 91 Proposed Shore Power Routing
New 100ton bollards

Replace existing
sawtooth box

New west berth
sawtooth boxes

New 100ton bollards

Conduit pathways: Replace
(93) deck panels underlying
conduit pathways

Replacement Watts
Shore Power Equip.

Replace existing
sawtooth box

New east berth
sawtooth boxes

Conduit pathways
6

Pier 66 Status
• Advance Design and GMP development for the
shore power extension project at P66.
- (1) new shore power connection point will be
installed at footmark 352'
- Route conduits over the wave barrier wall to
route the conduit from the south to north end
of the pier at footmark 352'
- Install new hangars for new conduit routing

7

Pier 66 Proposed Shore Power Routing
New sawtooth box

Conduit pathways
below deck

8

Cost Breakdown
Cost Element
Planning through Validation
Pier 91
Pier 66
GMP Development
Pier 91
Pier 66
Material Pre-Procurements (Watts)
Pier 91
Pier 66
Early Work Amendment (Long-lead Material Procurement)
Pier 91
Pier 66
P91 South Bollards (C802116)
Remaining Amount to be Authorized (Construction-Final
GMP)
Pier 91
Pier 66
P91 South Bollards (C802116)

Current Request

Total Cost

$0
$0
$0
$0
$0
$0
$0
$0
$0
$5,200,000
$4,377,000
$700,000
$123,000
$0

$2,450,000
$1,620,000
$830,000
$5,000,000
$3,800,000
$1,200,000
$8,000,0000
$7,000,000
$1,000,000
$5,200,000
$4,377,000
$700,000
$123,000
$39,150,000

$0
$0
$0
Total*

$27,000,000
$10,000,000
$2,150,000
$59,800,000

*Overall costs have increased since last authorization due to added scope and design refinement. $5M of net changes due to added scope and will draw from

existing project budgets, including $2M from S. P91 Bollards (CIP # C802116) and $3M reduction in budget forecast for Dock Rehabilitation project (CIP# C801294).

9

Project Schedule
Phases

Anticipated Dates

Commission Authorization - T91 Mobile Cable Positioning
Devices (CPDs) and T91 Cruise Shore Power Extension North
initial design funding

August 8, 2023

DORA - Progressive Design Build Procurement and Preliminary
Design
Commission Authorization - Watts Marine, LLC Purchasing
Contract
Commission Authorization - Progressive Design Build Contract -
Validation Phase

October 16, 2024
April 22, 2025
July 8, 2025

Commission Authorization - Post-Validation Amendment funding December 9, 2025
Commission Authorization - Early Work Amendment (Mini GMP) April 28, 2026
Commission Authorization - GMP Amendment funding
Q3 2026
Construction

Q4 2026 - Q2 2027
10

Next Steps
• Final design development and final GMP development Q2 2026 - Q3 2026
• Commission Authorization Final design/Construction Q3 2026
- Final GMP, scope, schedule
• Construction Q4 2026 - Q2 2027

11

RISKS

DESCRIPTION

PROBABILITY

IMPACT

MITIGATION

Constrained Schedule

Delivery required by 2027. Minimal work windows due to
cruise season, commercial fishing season, tribal
agreements, and fish window if in-water work is needed
have high potential to delay in-service date past cruise
season start in 2027.

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. Negotiation of
new agreement when Port takes ownership of the shore
power equipment may result in higher usage costs, and
interruptions in power delivery 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.

High

Adding cost contingencies to account for tariff price
impacts. Early execution of Watts contract to begin
procurement of long-lead shore power equipment in
advance.

Dock Rehabilitation - deck
panel condition

The deck panels in DU#9202 on Pier 91 have continued to
degrade rapidly. Ongoing discussions with the Dock
Rehab project team have potential to add/change scope.

Coordination with other
projects at Terminal 91

Permitting

Project Risks

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.
Permitting assumptions are aggressive and assume no inwater work window constraints and that the project is
considered repair and maintenance under SEPA and the
shoreline code. Any change in assumptions will delay the
project.

Med

Med

High

High

Low

Coordinated evaluation of the deck panels and
potential solutions- incorporating limited scope into
shore power to replace only underlying deck panels.

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.

High

Progressive Design Build project delivery will allow for
early collaboration on design and permitting to the
extent feasible.

12

Cone of Certainty

We are here

13

Questions?
14

Appendix

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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
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Project Scope
• Design and construct all necessary infrastructure upgrades to (2) Pier 91 cruise berths and Pier 66
cruise berth to meet project goals, including :
- Conduct a berthing and mooring study for all known current and future ships to determine
optimal connection locations, distribution pathways, and required mooring bollard upgrades.
- Extend the existing shore-power system to allow all known current and future ships of different
configurations to connect to shore-power
- Ensure compatibility of the extended cruise shore power system with existing equipment and
facilities, including the mobile cable positioning devices (CPD).
- Procure all permits
- Replacement of existing shore power equipment that has reached end of service life at Pier 91.
- New mooring bollards at Pier 91
- Potential limited deck panel replacements at Pier 91

17

Example Terminal 91 Berthing Analysis

18

Example Terminal 91 Mooring Analysis

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