COMMISSION 
AGENDA MEMORANDUM                        Item No.          6c 
ACTION ITEM                            Date of Meeting    September 12, 2017 
DATE:     August 31, 2017 
TO:        Dave Soike, Interim Executive Director 
FROM:    Michael Ehl, Director Aviation Operations 
Wayne Grotheer, Director Aviation Project Management 
SUBJECT:  S. 160th Street GT Lot Building Rehabilitation (CIP #C101107) 
Amount of this request:               $4,431,533 
Total estimated project cost:           $6,526,533 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to: 1) increase the budget by 
$3,010,533;  2) complete the design, advertise for bids, award and execute a major works 
construction contract; and 3) authorize the use of Port Construction Services and small works
contracts to rehabilitate the existing transportation building and potentially construct a new
smaller facility for the on demand operators at the S. 160th St. Ground Transportation Lot, for
the remaining authorization of $4,431,533 and a total authorization of $6,526,533. 
EXECUTIVE SUMMARY 
This project will completely rehabilitate the interior of the existing taxi driver layover building 
including replacing the heating, ventilation and air conditioning (HVAC) system and roof and
potentially construct a new smaller facility in the lower lot for on demand operators located at
the S. 160th St. Ground Transportation (GT) Lot. These efforts will extend the useful life of this
heavily used Port asset. 
JUSTIFICATION 
The entire GT Lot building, constructed in 1990, serves approximately 1,000 people per day
within a 20 hour period, seven days a week, and has for many years. The interior, especially the
restrooms, are heavily worn and well beyond their useful service life. The interior has become 
unserviceable, difficult to maintain and deteriorated. Replacement of the exiting HVAC system
and roof is required as they are past their useful lives and no longer meet code or energy
standards. 
Based on recent demands by operators, staff is requesting approval to design and construct a
separate and smaller transportation facility including restrooms on the lower portion of the S.
160th  St. GT Lot.  This improvement would  specifically serve  the  transportation network

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. _6c__                               Page 2 of 6 
Meeting Date: September 12, 2017 
company (TNC) drivers. The new facility would replace the existing (outdoor) portable toilets
and sinks these commercial drivers use. 
DETAILS 
The interior spaces, building systems and roof of the S. 160th St. GT Lot building were slated to
be rehabilitated in 2015 as part of an earlier project. At the 100% design level, a decision was
made to withdraw this work from the project scope and add it to the tenant's pending contract 
with the intent for the tenant(s) to accomplish the rehabilitation work. 
The interior of the building is very worn, with  the restrooms being  in particularly poor
condition. To date, the tenant has not carried out any building improvements in keeping with
their contract. The condition of the building interior continues to deteriorate. This request is to
update the current 100% design documents to meet current code and permitting requirements,
to create the construction documents, and to advertise for construction and award a contract
to construct the renovations. 
The estimated cost for rehabilitating the existing building  within the original budget  to
rehabilitate  the  building  and  carry  out  site  improvements  of  $3,516,000  in  2015  was 
$1,870,000. This previous estimate has been reviewed and increased to $2,500,000 to cover
design revisions, scope changes, to be in compliance with current codes and standards, to
address a very competitive bidding environment, and to expedite the bidding and construction 
of the project. This increased estimate is within the additional budget increase authorization
being requested. 
Staff is requesting an additional authorization of $2,500,000 to design and construct a new
smaller transportation facility for the other commercial drivers on the lower portion of the S.
160th St. GT Lot. Creating a new restroom structure for the other commercial drivers will
require the creation of plans and specifications, obtaining permits; getting utilities (power,
water, sanitary) to the site; and the construction of a new (durable) building. This effort will
take over a year to complete. 
Of the $2,095,000 currently authorized, $1,232,570 has been spent to date, which includes
$207,273 spent for the previous design costs expensed when the decision was made to delete 
the building scope from the project. Given the remaining unspent authorized funds , this brings
the total request for additional authorization to $4,431,533  and a revised total project
authorization  of  $6,526,533.  The  work  accomplished  to  date  includes  all  of  the  site
improvements: storm drainage, landscaping, sidewalk and utility undergrounding. 
All these improvements could be displaced in as soon as three to six years after they are
completed by future development identified in the pending Sustainable Airport Master Plan
(SAMP). 

Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _6c__                               Page 3 of 6 
Meeting Date: September 12, 2017 
Scope of Work 
This project will rehabilitate the interior of the S. 160th St. GT Lot building, and replace certain
mechanical  systems  and  the  building's  roof  based  on  the  updated  2014  plans  and
specifications. 
The scope includes: 
(1)   Providing temporary restroom facilities during construction 
(2)   Complete gutting of the men's restroom, including mold remediation if necessary 
(3)   Complete reconstruction of the men's room, to include foot washers and using less
maintenance intensive materials 
(4)   Reconfiguration and remodeling of the women's restroom 
(5)   Reconfiguration and remodeling of the dispatch office space 
(6)   Reconfiguration and rehabilitation of the day room space and kitchenette areas 
(7)   Correcting a number of ad hoc wiring and cabling solutions installed by various
tenants 
(8)   Roof replacement 
(9)   Complete HVAC system replacement to current code standards 
If an additional TNC facility, including men's and women's restrooms were to be pursued, it
would be a durable building of approximately 700 square feet. Finishes and fixtures would be
identical to those used in the taxi building restrooms.
Schedule 
Commission design authorization               2013 Quarter 4 
Design verification start                            2017 Quarter 3 
Commission construction authorization          2017 Quarter 3 
Construction start                                2018 Quarter 1 
In-use date                                       2018 Quarter 2 
Cost Breakdown                                     This Request           Total Project 
Design                                                  $1,431,533             $2,326,533 
Construction                                             $3,000,000             $4,200,000 
Total                                                         $4,431,533              $6,526,533 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Limited options exist to reach the desired outcome at the S. 160th St. GT Lot building. 



Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _6c__                               Page 4 of 6 
Meeting Date: September 12, 2017 
Alternative 1  Rehabilitate the taxi building interior as configured today 
Cost Implications: $1,750,000 
Pros: 
(1)   Addresses the most pressing problems with the building, such as the men's restroom. 
(2)   Reduces cost 
Cons: 
(1)   Doesn't replace the HVAC system and roof, which at 27 years old, are well beyond
their useful life 
(2)   Leaves building in current configuration, which doesn't allocate space efficiently 
(3)   Does not address all the building's problems 
This is not the recommended alternative. 
Alternative 2  Reconfigure and completely rehabilitate existing taxi building interior and
design and construct a new separate TNC facility 
Cost Implications: $5,000,000 
Pros: 
(1)   Resolves the problems within the existing taxi building and provides much more
efficient use of its interior space 
(2)   Improves maintainability of the existing structure 
(3)   Adds a separate and permanent facility, including restroom capacity for the TNC
operators 
Cons: 
(1)   Future of TNC operations on this site is an unknown 
(2)   If SAMP reuses the site the new structure might need to be written off. 
This is the recommended alternative. 
Alternative  3    Rehabilitate  existing  taxi  building  interior,  include  wiring  and  cabling
improvements, and replace HVAC and roof 
Cost Implications: $2,500,000 
Pros: 
(1)   Addresses all known shortcomings to the interior of the building 
(2)   Replaces HVAC with a system that addresses current code issues and energy efficiency
standards 
(3)   Roof replacement should last until the end of the building's service life 
Cons: 
(1)   Port assumes responsibility for improvements 
(2)   Cost of $2,500,000 
This is not the recommended alternative. 

Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _6c__                               Page 5 of 6 
Meeting Date: September 12, 2017 

FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                 $3,516,000               $0      $3,516,000 
Previous changes  net                         ($3,014,433)      $1,024,966    ($1,989,467) 
Current change                                $5,000,000               0      $5,000,000 
Revised estimate                                $5,501,567      $1,024,966      $6,526,533 
AUTHORIZATION 
Previous authorizations                          $1,070,034       1,024,966      $2,095,000 
Current request for authorization                $4,431,533               $0      $4,431,533 
Total authorizations, including this request       $5,501,567      $1,024,966      $6,526,533 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
While this project was included in the 2017  2021 capital budget as an active capital project,
there were no forecasted cash flows as the scope and budget had been reduced consistent with
previous direction.  The current budget request will be transferred from the non-aeronautical
allowance CIP (C800405) resulting in no net change to the total capital budget.  The funding
source will be the Airport Development Fund. 
Financial Analysis and Summary 
Project cost for analysis              $6,526,533 
Business Unit (BU)                  Landside  Ground Transportation 
Effect on business performance     NOI after depreciation will decrease 
(NOI after depreciation) 
IRR/NPV (if relevant)                N/A 
CPE Impact                       None 
Future Revenues and Expenses (Total cost of ownership) 
Per our contract with the taxi provider, the ongoing costs of operating and maintaining this
facility will remain their responsibility. 
ATTACHMENTS TO THIS REQUEST 
None 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
September 22, 2015  The Commission authorized the Chief Executive Officer to advertise
for bids, award, and execute a major works construction contract to construct the

Template revised September 22, 2016; format updates October 19, 2016.

COMMISSION AGENDA  Action Item No. _6c__                               Page 6 of 6 
Meeting Date: September 12, 2017 
Airport's South 160th Street Ground Transportation Lot project site improvements, for
an estimated amount of $455,000 and a total authorization of $2,095,000. 
November 19, 2013  The Commission authorized (1) proceeding with design of the S.
160th St. Ground Transportation Lot Project for an estimated $667,000; (2) executing
utility  agreements  with  Puget  Sound  Energy  (PSE),  Comcast,  and  CenturyLink  to
underground utilities; (3) granting and transferring a utility easement to PSE on Port
property along the south side of S. 160th St. to underground utilities; (4) reimbursing
PSE, Comcast, and CenturyLink in an amount not to exceed $540,000 for the utility
undergrounding work; and (5) transferring of the utility undergrounding scope of work
and $973,000 of authorized budget from the Off-Site Roadway Improvements (ORI)
Project to the S. 160th St. Ground Transportation Lot Project. 














Template revised September 22, 2016; format updates October 19, 2016.