PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA             Item No.      5d 
ACTION ITEM             Date of Meeting    July 24, 2012 

DATE:    July 17, 2012 
TO:     Tay Yoshitani, Chief Executive Officer 
FROM:    Michael Ehl, Director, Airport Operations 
Wayne Grotheer, Director, Aviation Capital Improvement Program 
SUBJECT:  2013 Airfield Apron Pavement Replacement (CIP #C102573) 
Amount of This Request: $200,000     Source of Funds: Existing 2010 Revenue Bonds 
Estimated 2013 Project Cost: $10,000,000 
ACTION REQUESTED: 
Request authorization for the Chief Executive Officer to design, prepare construction
documents, and perform advanced preparatory work at boarding gates needed for
maintaining airline operations for the 2013 Airfield Apron Pavement Replacement project in
the amount of $200,000. The total estimated project cost in 2013 is $10,000,000. 
SYNOPSIS: 
As in previous years, it is necessary to replace some of the worst pavement and joint seals on the
airfield because the existing concrete panels become cracked and damaged with age, creating a
significant security risk for aircraft. 
This project will produce the final design for concrete pavement panels, joint seal replacement,
spall repair, and temporary facilities such as striping and lighting on the Airport Operations Area 
(AOA). The design will include utilities and other scope items related to the project. The final
design will be completed by early 2013. Port staff will return to the Commission early in 2013 to
request authorization for advertisement and construction funding. This project was included in
the 2012  2016 capital budget and plan of finance. 
The current request accounts for the design and implementation of a minimal amount of
temporary measures being required to mitigate airline impact due to anticipated gate
closures. Closure of gates, required by the construction of the project, may cause
reassignment of domestic and international flights on multiple concourses. Port staff will
return to the Commission to request additional funding in the event that extensive temporary
modifications for reassigning gates are required that exceed the authorized funds.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
July 17, 2012 
Page 2 of 6 
BACKGROUND: 
The 2013 Airfield Apron Pavement Replacement project proposes to replace distressed concrete 
pavement panels in a programmatic approach. This approach would involve the replacement of
distressed panels and additional panels in the direct vicinity of the distressed panels. These
panels were poured in 1970 and had a design life of 20 years. Currently there is a significant
amount of existing airfield apron pavement that has far exceeded its expected service life. This
strategy of replacing larger groups of panels will allow aged panels to be systematically and
more efficiently replaced than if only individual panels were replaced. Over time, this approach
should be less disruptive to the airline operations since the areas will not need to be closed again
for construction for many years. 
Port staff has currently identified two locations with a high percentage of distressed panels, one
along Taxilane W and the other in the vicinity of gate N10 of the North Satellite (See
Attachment A). The location along Taxi Lane W is west of the South Satellite and is the location
with the highest percentage of distressed panels. The distressed areas along Taxilane B align
with the wheel tracks of the aircraft that use the Taxilane. The location near gate N10 exhibits
ponding water after rain events as well as a number of cracked and distressed panels. 
This project will also replace smaller sections of airfield pavement as they deteriorate. These
smaller sections can occur anywhere on the airfield, not including runways. (Runway pavement
replacement is conducted under a different CIP.) 
This project is part of a multi-year program to replace some of the worst pavement and joint seal
on the airfield. The construction costs for this project have yet to be determined but a
projected estimate is in the $10,000,000 range. The original budget for the program is
$30,800,000. 
PROJECT JUSTIFICATION: 
In areas around the AOA, the age of the existing concrete has resulted in cracked and damaged
panels. There are areas of pavement throughout the AOA that need to be replaced due to age or
due to the proximity to those panels that warrant being replaced. Concrete debris resulting from
deteriorating pavement can become a hazard for aircraft and personnel. 
This project will most likely impact airline operations at gates throughout the Airport and to
taxiway configurations. Temporary modifications, such as temporary podiums at the gates, 
within the interior of the terminal may be necessary to facilitate airline tenant relocation. The
need for temporary modifications requires discussion and coordination with the airlines during
the design phase and is dependent upon the anticipated impact during construction.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
July 17, 2012 
Page 3 of 6 
PROJECT STATEMENT AND OBJECTIVES: 
Project Statement: 
Perform final design for the replacement of concrete pavement panels and joint seal including
any temporary infrastructure modifications necessary to accommodate airline reassignments for a
cost of approximately $10,000,000. 
Project Objectives: 
Complete the final design for the pavement, and joint seal replacement in preparation for
construction in summer of 2013. 
PROJECT SCOPE OF WORK AND SCHEDULE: 
Scope of Work: 
Produce final design for the apron pavement, and joint seal replacement. The design will include
utilities, temporary striping and lighting and other scope items related to the project. The final
design will be completed in early 2013. Construction is anticipated in 2013. 
Schedule: 
Begin design                August 2012 
Final Design                March 2013 
Commission Authorize Advertise   March 2013 
Advertise                   March 2013 
Construction                May to October 2013 
FINANCIAL IMPLICATIONS: 
Budget/Authorization Summary: 
Capital      Expense       Total 
Original Budget                       $30,800,000              $30,800,000
Budget Decrease                     $(378,915)              $(378,915)
Revised Budget                      $30,421,085              $30,421,085
Previous Authorizations this CIP            $12,337,085               $12,337,085
Current request for authorization               $200,000                 $200,000
Total Authorizations, including this        $12,537,085              $12,537,085
request 
Remaining budget to be authorized           $17,884,000              $17,884,000

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
July 17, 2012 
Page 4 of 6 
Project Cost Breakdown: 
Design                                                $100,000 
Project Management                                       $60,000 
Survey                                                $20,000 
Internal POS Support and Review                                $20,000 
Outside Professional Services                                         $0 
Total                                                      $200,000 
Budget Status and Source of Funds: 
This project is included in the 2012-16 capital budget and plan of finance within CIP #C102573 
in amount of $30,800,000. The budget decrease of $378,915 has been transferred to
Aeronautical Renewal/Replace C102166. The Source of funding for the 2013 project work
(approximately $10,000,000) is existing 2010 Revenue Bonds. Project work in 2014 and beyond
will be funded by a future bond issue.
Financial Analysis and Summary: 
CIP Category               Renewal/Enhancement 
Project Type                Infrastructure Upgrade 
Risk adjusted Discount rate       N/A 
Key risk factors               N/A 
Project cost for analysis          $30,421,085 
Business Unit (BU)            Airfield - capital costs will be fully recovered in
landing fees over the life of the asset 
Effect on business performance    NOI after depreciation will increase since capital and
operating costs will be recovered through landing fees. 
IRR/NPV               N/A 
CPE Impact               Will increase CPE by $0.15 by 2015 but no change to
business plan forecast as this project was included. 
STRATEGIC OBJECTIVES: 
This project supports the Port's strategy to "Ensure Airport Vitality" by maintaining a safe
operating environment as well as maximizing asset utilization. 
ENVIRONMENT SUSTAINABILITY:
During repair and maintenance activities, various sustainable practices will be considered and
implemented when practicable. These include, but are not limited to, performing a lifecycle
analysis of materials used to ensure that resources being used and/or recycled are
environmentally and economically practical; utilizing onsite water for dust control and irrigation;
the reuse of materials such as concrete and soil; and employing low emission construction
equipment.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
July 17, 2012 
Page 5 of 6 
BUSINESS PLAN OBJECTIVES:
This project furthers the Airport's business plan objectives to operate a world-class international
airport by ensuring safe and secure operations and by managing our assets to minimize the total
long-term cost of ownership. 
TRIPLE BOTTOM LINE SUMMARY: 
Replacement of concrete pavement panels and the joint sealant are a financially responsible way
to insure continued access to the gate areas and runways for the airline tenants and continued
gate availability for the traveling public. 
ALTERNATIVES CONSIDERED AND THEIR IMPLICATIONS: 
1)  Do nothing: This alternative would result in an increasing risk of aircraft ingesting
concrete debris into aircraft engines from distressed pavement, adversely affecting
Airport operations. This is not the recommended alternative. 
2)  Replace the pavement and joint seal during the 2013 construction season. 
This is the recommended alternative. 
OTHER DOCUMENTS ASSOCIATED WITH THIS REQUEST: 
Attachment A  Preliminary Airfield Apron Panel Replacement Areas 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS: 
C102573  Airfield Pavement Replacement 
On April 10, 2012, the Commission authorized an additional $1,467,000 because the bids
exceeded the Engineer's Estimate by greater than 10 percent; and authorized the Chief 
Executive Officer to execute a contract in the amount of $6,553,964 with the low responsive
and responsible bidder for the 2012 Exterior Gates and Airfield Improvement Projects. This
authorization increased the budget by $1,467,000 due to the higher than expected bids, for a
total project cost of $10,500,000.
On January 24, 2012, the Commission authorized $4,707,000 and for the Chief Executive
Officer to advertise and execute a construction contract that included Apron Pavement
Replacement, Exterior Gate Improvements, Runway 16C/34C Panel Replacement, and South
Snow Dump Pavement Expansion 
On July 26, 2011, the Commission authorized $465,000 and for the Chief Executive Officer
to complete the design and perform any advance work in support of the 2012 Pavement and
Joint Replacement and Sealant Project for non-runway concrete pavement panels, joint seal
replacement, spall repair, and associated or temporary facilities, such as striping, lighting,
etc., on the Aircraft Operations Area. 
On March 1, 2011, the Commission authorized $6,235,000 and for the Chief Executive
Officer to advertise and execute a construction contract that included slot drain, pavement,
and joint seal replacement at the South Satellite and perform installation of temporary

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
July 17, 2012 
Page 6 of 6 
common use podiums and minor removal of hazardous materials through Port Construction
Services. 
On August 10, 2010, the Commission authorized $394,000 and for the Chief Executive
Officer to direct staff to: 1) proceed with project management, design, environmental
support, and preparation of 100 percent design level construction documents for the
replacement of slot drains, pavement and joint seal at the South Satellite at Seattle-Tacoma
International Airport; 2) execute and award outside professional service agreements; 3) prepurchase
common-use gate equipment; and 4) allow Port Construction Services to selfperform
, advertise for bids, and execute and award small works construction contracts for
common use equipment installation. 
On February 9, 2010, the Commission authorized $5,650,000 for the design, advertisement,
and award of a construction contract for the 2010 Airfield Improvement Projects  
Contract 1, consisting of panel replacements on Runway 16C/34C.