PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA               Item No.      4e 
ACTION ITEM 
Date of Meeting     April 26, 2016 
DATE:    April 19, 2016 
TO:      Ted Fick, Chief Executive Officer 
FROM:   Kenneth R. Lyles, Director, Fishing and Commercial Operations 
Mark Longridge, Capital Project Manager 
SUBJECT:  Authorization for design and permitting of fender system improvements at 
Terminal 91 Berths G & H (CIP # C800675) 
Amount of This Request:    $308,000        Source of Funds:  Tax Levy 
Est. Total Project Cost:      $2,470,000 
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to complete design and
permitting of 420 feet of replacement fender system at Terminal 91 in the amount of $308,000 
for a total preliminary estimated project cost of $2,470,000 
SYNOPSIS 
This project will remove and replace the current timber fender system of berths G & H on the
south end of Terminal 91. Replacing the fender system with a stronger, more environmentally
friendly steel system will allow the berth to continue to service a variety of vessel types and
sizes, extending utilization of the pier for another 30 plus years and fostering tenant retention and
its related employment. 
The berths at the southernmost end of Terminal 91 are used primarily for fishing vessels, but also
service research vessels, tugs and barges. The current fender system was installed in 1999 and 
has been repaired several times since then. It is now reaching the end of its service life. Several
piles are deteriorated or broken and the loading capacity of the system is becoming significantly
compromised. 
BACKGROUND 
Throughout the last several years, the Port has been replacing aging treated timber systems at
many of our facilities as they reach the end of their life and replacing them with coated steel
systems that are longer lasting, more environmentally friendly and stronger than the timber
systems they replace. 
The current fender pile system at these berths consists of ammoniacal copper zinc arsenate 

Template revised May 30, 2013.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
April 19, 2016 
Page 2 of 6 
(ACZA) treated piles, chocks and walers in a conventional arrangement typical of timber fender
systems. While environmentally superior to traditional creosote piles used in the past, these piles
do not have a relatively long service life under harsh conditions. Several of the piles currently are
broken, rotted or have significant section loss around the waterline. 
The south end of Pier 91 presents additional challenges as it is one of the highest fetch locations
(having the longest direct wind and resulting wave exposure) throughout Elliot Bay. As a result
of these conditions, we have seen accelerated wear of the current timber system due to chafing
and abrasion of the pile faces. Providing a stronger wear face of high density polyethylene
(HDPE or similar) will also be a design priority to ensure a long life for the new system. 
All in-water work for the installation of the new piles must be completed within the permitted 
fish window between August 15, 2016 and February 15, 2017, while above water work may be
completed after this time (upper bullrail work etc.). This construction window falls during some
of the busiest time for these berths,  when fishing vessels are in port for refitting and
maintenance, and it is expected that operational constrains may further tighten the time the job 
site is available for construction. The project team will work closely with operations staff to
minimize any impacts to both the construction and operations schedules. 
PROJECT JUSTIFICATION AND DETAILS 
Replacement of this essential protective system will allow continued operation of fishing vessel, 
barge and other activity in this lease area. 
Project Objectives 
The project objective is to fully replace the deteriorating fender system at the south end of Terminal 
91, keeping these berths in service. 
Scope of Work 
Overall project scope would include the replacement of approximately 420 linear feet of old and
deteriorated fender pile system, along with the remaining bullrail and brow at the south end of Pier
91 with a new steel fender system to facilitate vessel and barge moorage for existing lease tenants
and transitory barge traffic. 
Design and permitting scope under this authorization to include preparation of plans, specifications
and estimates for completing this work, and coordination of all applicable permits required for inwater
work to repair these sites. 
Schedule 
Commission Authorization for Construction       July 2016 
100% Design Complete                   July 2016 
Major Works Construction Advertisement        August 2016 
In-Water Construction Begins                 January 2017 
Construction Complete                     March 2017

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
April 19, 2016 
Page 3 of 6 
FINANCIAL IMPLICATIONS 
Budget/Authorization Summary              Capital     Expense   Total Project 
Original Budget                            $0          $0          $0 
Previous Authorizations                   $50,000          $0      $50,000 
Current request for authorization              $308,000          $0      $308,000 
Total Authorizations, including this request      $358,000          $0      $358,000 
Remaining budget to be authorized         $2,112,000          $0    $2,112,000 
Total Estimated Project Cost              $2,470,000          $0    $2,470,000 
Project Cost Breakdown                     This Request       Total Project 
Construction                                     $0         $1,835,000 
Construction Management                      $55,000         $156,000 
Design                                   $140,000          $165,000 
Project Management                          $85,000         $110,000
Permitting                                   $28,000           $28,000 
State & Local Taxes (estimated)                        $0          $176,000 
Total                                       $308,000         $2,470,000 
Budget Status and Source of Funds 
This project was included in the 2016 Plan of Finance under Committed CIP#C800675 in the
amount of $2,077,000. The current total project estimate is $2,470,000. The initial $308,000 is
requested in order to proceed with design and permitting. 
This project will be funded from the tax levy. 
Financial Analysis and Summary 
CIP Category             Renewal/Enhancement 
Project Type              Renewal & Replacement 
Risk adjusted discount rate     NA 
Key risk factors             Project schedule could be delayed due to project
complexity, in-water work constraints, and the need to
minimize disruptions to terminal operations and existing
tenant/customers. 
Project cost for analysis        $2,470,000 
Business Unit (BU)          Fishing and Commercial Operations 
Effect on business performance  Depreciation of $82,333 per year for 30 years. 
There are no incremental revenues associated with this
project. 
IRR/NPV             NPV is present value of project costs.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
April 19, 2016 
Page 4 of 6 
Lifecycle Cost and Savings 
While a treated timber system would have a lower initial capital cost, it also has a significantly
shorter service life (15-20 years, vs. 30-50 years for a steel system). Conservatively, this results
in the timber option having a significantly higher life cycle cost as it would need to be replaced
twice as often. 
Similarly the cost savings of keeping the current system operational would likely present no long
term savings even with discounting the risk of a potential catastrophic failure; the system will
still be in need of replacement in a few years and require capital outlay at that time. Balancing
the deferral of these costs against the likely need for more costly repairs due to vessel damage is
not recommended. 
STRATEGIES AND OBJECTIVES 
This project supports the Port's strategies to "Ensure Airport and Seaport Vitality" and "Exhibit
Environmental Stewardship through our Actions", in the following categories: 
Economic Development 
Replacing the fender system at the subject Terminal so that the Terminal can remain in
service for berthing. 
This project will develop and maintain community support by retaining longstanding
tenants in our harbor, with the related employment and the necessary purchase of goods
and services to service, maintain, repair and upgrade the vessel while at port. 
Environmental Responsibility 
Improving water quality by removing deteriorated treated timber piles from the marine
environment. 
Installing a durable coated steel system will provide the greatest economic benefit at the
least environmental impact. 
Community Benefits 
The  permit process requires notification of and coordination with neighboring
communities, agencies of interest and appropriate environmental groups. Comment is
expected and welcomed. 
Additionally, the waters near Terminal 91 are treaty reserved "usual and accustomed"
fishing areas. The Muckleshoot and Suquamish Tribes will be consulted during the
permitting process.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
April 19, 2016 
Page 5 of 6 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1)  Status Quo.
Cost Estimate:  Potential ad hoc pile replacements estimated at $20,000-50,000 each,
approximately 8-10 need immediate attention to keep the berth functional.  Subsequent
replacement costs would be as shown in alternatives below, but adjusted upwards for inflation. 
Pros: 
No capital funding required and leaves capital funds available for other projects. 
Cons: 
Increased maintenance and emergency repair response costs over time. 
The risk of significant or catastrophic failure increases over time with the further
breakdown of the fender piles. 
Failure of the fender system could lead to structural damage to the pier that it protects,
leaving it out of service until fully repaired. This type of repair would be significantly
more costly and lengthy than fender replacement and could not be completed using the
programmatic permit. 
This is not the recommended alternative. 
Alternative 2)  Replace current system with an ACZA treated timber fender system
similar to the current system.
Cost Estimate: $1,750,000 (total project) 
NPV: -$2,860,000 
Pros: 
Lower initial capital investment. While design, contract and construction management
and installation costs are similar, some savings would be realized in material costs. 
Provides immediate protection of port assets. 
Cons: 
Significantly shorter lifespan (~50%) than steel alternatives, will need replacement again
in 15-20 years, especially in this heavy weather location 
Use of treated timber piles strongly discouraged under current permitting guidelines for
the programmatic permit, and could be not allowed entirely. 
ACZA treated piles not as environmentally benign as epoxy coated steel pile 
This is not the recommended alternative. 
Alternative 3)  Replace current system with an epoxy coated steel fender system.
Cost Estimate: $2,470,000 (total project) 
NPV: $-2,470,000

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
April 19, 2016 
Page 6 of 6 
Pros: 
Longer expected asset life and improved life cycle cost 
(system will be designed for 30-50 year life) 
Most durable and environmentally friendly option. 
Provides immediate protection of port assets. 
Cons: 
More expensive than timber alternative in initial capital outlay 
This is the recommended alternative. 
ATTACHMENTS TO THIS REQUEST 
PowerPoint presentation. 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
None