6b 1

COMMISSION 
AGENDA MEMORANDUM                Item No.       6b 
ACTION ITEM                   Date of Meeting   November 22, 2016 
DATE:    November 15, 2016 
TO:     Ted Fick, Chief Executive Officer 
FROM:   Michael Ehl, Director, Airport Operations 
Wayne Grotheer, Director, Aviation Project Management Group 
Clare Gallagher, Director, Capital Project Delivery/Public Affairs 
SUBJECT:  Flight Corridor Safety Program  Phase 1 
Amount of this request:           $475,000 
Total estimated project cost:       $3,226,000 
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to (1) award and execute a
major public works construction contract for the Flight Corridor Safety Program Phase 1 project
with the lowest responsible bidder, notwithstanding the low bid exceeding the engineer's
estimate by more than 10 percent; (2) change the contract to extend the contract duration  as
necessary and include additional scope that may be identified, including deferral of work on
selected sites so that those sites can be re-evaluated for tree removal and replanting; and (3)
increase the budget by an amount not to exceed $475,000 for a new total project cost of
$3,226,000. 
EXECUTIVE SUMMARY 
The Commission authorized advertisement for bids for the Flight Corridor Safety Program Phase
1 on August 9, 2016. Four contractor bids were received and opened on October 3, 2016. The
lowest responsible bid exceeded the engineer's estimate by 28%.  This represents a bid
irregularity requiring further Commission action prior to contract award in accordance with the
Port's General Delegation of Authority, Section 4.2.3.4. Port staff has reviewed the bids and the
engineer's estimate and recommends award of the construction contract to the lowest
responsible bidder.  The additional $475,000 funds are being requested to allow for 
construction contract time adjustments  to complete Phase 1, to adjust the contract
contingency to reflect the bid amount and to support any additional scope of work that is
consistent with the State Environmental Policy Act (SEPA) Mitigated Determination of Non-
Significance that was issued on August 26, 2016. The additional funds request is not associated
with any form of additional mitigation associated with subsequent phases of the Flight Corridor
Safety Program or any potential for community enhancements/amenities program. 

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 2 of 9 
Meeting Date: November 22, 2016 
JUSTIFICATION 
This program is necessary to meet the Aviation Division's goals of ensuring safe and secure
aircraft operations.  The Port must remove obstructions to navigable airspace to meet
regulatory requirements and continue operating a world class airport. The program elements
include significant mitigation to offset the tree removal by providing a 4:1 replanting ratio for
the areas identified in Phase 1. 
Justification for this program falls under the following categories: 
1.  Federal Aviation Administration Requirements for Airport Operators to Control Obstructions 
a.  Federal Aviation Regulation (FAR) Part 139, Certification of Airports 
b.  Advisory Circular (AC) AC 150/5300.13A, Maintenance of obstacle clearance surfaces 
c. Grant Assurance 20 "Hazard Removal and Mitigation" 
d. Grant Assurance 21 "Compatible Land Use" 
2.  State Requirement for Airport Operators to Control Obstructions
a. RCW 14.12.020 "Airport hazards contrary to public interest" 
3. Airport's Strategic Goals and Objectives 
a.  Strategic Goal No. 1, Operate a world-class international airport by: Ensuring safe
and secure operations 
The Port conducted an environmental review under the State Environmental Policy Act ( SEPA) 
for Phase 1 of the project, and issued a Final Mitigated Determination of Non-Significance for
Phase 1 in August 2016. Mitigation for Phase 1 of this program includes: 
Re-planting of approximately 4,000 trees for the removal of approximately 1,170 trees; 
Shrubs and hydro seeding to revegetate areas where ground vegetation or understory
impacts occur; 
Erosion control best practices; 
Removal of trees outside of the bird-nesting season; 
Construction design and specifications that require the avoidance of ground-disturbing
activities inside wetlands; and 
A monitoring period of five years within wetland and buffer areas. 
The program is organized into three phases, beginning on Port-owned properties for initial
removal and replanting, to allow additional time for coordination with local jurisdictions and
property owners for work on property not owned by the Port. Work in all three phases will
avoid or minimize impacts to critical areas, in compliance with federal and state laws. 
On November 1st, 2016 Port Commissioners and Port Staff hosted a Community Meeting and
Open House as an additional opportunity to present the Flight Corridor Safety Program to the
public. The purpose of the meeting was to engage the community, learn about their concerns,
listen to their questions and help clarify the program. There were over 100 attendees, and
comments touched on areas such as the community impact of losing full-size trees; the
additional impact of earlier tree removal for third runway construction; air quality; keeping re-

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 3 of 9 
Meeting Date: November 22, 2016 
planting in the impacted community; and the overall impact to communities from airport
activity and growth. Based on public comments received, the Port may revise Phase 1 scope 
that has been bid, and staff has outlined possible contract modifications to consider. 
Environmental review will be completed for phases 2 and 3, as will additional community
engagement and direct negotiation with property owners regarding removal and replanting on
their property. Port staff will also pursue broader-based community enhancements related to
this program, such as the possibility of tree-banking or other municipal programs as part of the
removal, and replanting activity in the later phases. 
Further detail regarding the development of comprehensive assessments and planning work for
the Conceptual Plan; Phase 1 Critical Areas Special Study and Phase 1 Implementation Plan, is
contained in Appendix A of this memo along with excerpts from the Implementation Plan in
Attachment B. These documents will be updated for phases 2 and 3. 
Project Objectives 
Program objectives are as follows: 
(1)   Remove obstructions to facilitate safe aircraft operations 
(2)   Communicate with transparency to the surrounding communities 
(3)   Comply with local, state, and federal regulatory requirements 
(4)   Revegetate with native low-growth vegetation and re-plant native trees in appropriate
locations 
(5)   Prevent any net loss of vegetation 
DETAILS 
Scope of Work 
Scope of work for Phase 1 of the program includes removing trees/vegetation on and around
the Airport and replanting tree and shrub vegetation. This scope also includes environmental
review and permitting in compliance with applicable federal and state requirements. The work
includes installation of temporary erosion and sediment control devices, removal of
trees/vegetation, and removal of invasive species, extensive tree replanting, extensive shrub
replanting and restoration. 
Schedule 
Execute Construction Contract                             4th Quarter   2016 
Construction Completion                               4th Quarter   2017 
Activity 
Commission design authorization          2016 Quarter 1 
Design start                          2016 Quarter 2 
Commission construction authorization       2016 Quarter 3 

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 4 of 9 
Meeting Date: November 22, 2016 
Commission irregular bid authorization       2016 Quarter 4 
Construction start                      2017 Quarter 1 
In-use date                          N/A 
Cost Breakdown                         This Request       Total Project 
Design                                       $0          $558,000 
Construction                               $475,000         $2,648,000 
Total                                             $0          $3,226,000 

ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not award the project. 
Cost Implications: Cost from Planned Budget deferred: $2,173,000 
Pros: 
(1)  Under this option there is no near-term use of 2016 expense funds.
Cons: 
(1) Phase 1 work would have to be accomplished in 2017, along with Phase 2. 
(2) FAA could consider the Airport to be non-compliant with Federal rules and
regulations. The FAA would have a number of options on how to address the non-
compliance. The FAA's options would include: 
(a) Consider approach and/or departure procedures to be unsafe, and limit their
use; 
(b) Consider approach and/or departure procedures to be unsafe, and turn them
off; 
(c) Limit or eliminate FAA grant funding until the obstructions are removed. FAA
entitlement grant funding is estimated to be ~$6.6 million in 2016 and up to
~$7.1 million in 2021. 
(d) Requiring airlines to take weight penalties, with an additional effect of not 
serving certain markets, as aircraft would have to be lighter to take-off over
the obstructions. 
(3) Does not meet the Airport's strategic goal of ensuring safe and secure operations. 
This is not the recommended alternative. 




Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 5 of 9 
Meeting Date: November 22, 2016 
Alternative 2  Re-bid Phase 1 in 2017 
Cost Implications:  Estimated $625,000 minimum of additional costs from escalation,
administrative time and to change the contract as necessary to include additional scope that
may be identified. 
Pros: 
(1) Demonstrates the Port's commitment to removing obstructions while providing
additional outreach and study of the program approach. 
Cons: 
(1) Phase 1 work would be accomplished in 2017, in additional to Phase 2 work 
(2) FAA could consider the Airport to be non-compliant with Federal rules and
regulations. The FAA would have a number of options on how to address the noncompliance
, as noted in Alternative 1 description.
(3) Does not meet the Airport's strategic goal of ensuring safe and secure operations. 
This is not the recommended alternative. 
Alternative 3  Award the major works construction contract to the lowest responsive and
responsible bidder, and make major contract changes to the removal and replanting scope for 
all Phase 1 sites. Contract time extension will be required . 
Cost Implications: Estimated $700,000 in additional costs to increase the project scope and
change the contract as necessary to include possible contract time adjustments and to include
additional scope that may be identified. 
Pros:
(1)   Provides flexibility in Phase 1 for additional public engagement 
(2)   Contractor is procured 
Cons: 
(1)   All Phase 1 work will be delayed until the contract plans and specs are revised, and
negotiations with the contractor are agreed upon 
(2)   Requires additional expense funds 
(3)   Delays Phase 1 substantially from planned schedule 
(4)   FAA could consider the Airport to be non-compliant with Federal rules and
regulations. The FAA would have a number of options on how to address the noncompliance
, as noted in Alternative 1 description.
(5)   Environmental best management practices to limit ground disturbance by tracked
equipment may not be met 
(6)   Greater disruption to the local communities 
(7)   Reduces reforestation efforts by delaying establishment 
This is not the recommended alternative. 

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 6 of 9 
Meeting Date: November 22, 2016 

Alternative 4  Award the major works construction contract to the lowest responsive and
responsible bidder, change the contract to extend the contract duration as necessary, and
include additional scope that may be identified. Awarding the contract will allow staff to defer
the work in sites P4 and P5 so that these areas can be re-evaluated. The re-evaluation could
result in a completely different approach or a modified approach to replanting and removal of
trees and vegetation in these areas. The deferral will also allow a determination as to whether
to include a change in approach within this contract or by subsequent means. 
Port staff would brief the Commission and engage the local community before work would
occur in areas P4 and P5, the southwest areas where most of the conifers and half the Phase 1
obstructions are located  see attachment D. Per the contract information, site P4 consists of
95 proposed trees to be removed with 1,054 trees to be replanted, and site P5 consists of 461
proposed trees to be removed with 1,557 trees to be replanted. Awarding the contract would 
allow obstruction removal and replanting to occur in areas P1, P2, P3, and P6 in early 2017.
Cost Implications: Estimated $475,000 in additional costs to allow for contact time adjustments
to complete Phase 1, to adjust the contract contingency to reflect the bid amount and to
support any additional scope of work that is consistent with the SEPA MDNS that was issued on
August 26, 2016. 
Pros:
(1)   Provides time for additional public engagement to discuss removal and replanting
alternatives 
(2)   Allows for removal of Phase 1 obstructions to begin 
(3)   Provides flexibility to explore additional replanting alternatives within specific sites 
(4)   Revegetating best management practices will be met 
Cons: 
(1)   Requires additional expense funds 
(2)   Delays Phase 1 from planned schedule 
(3)   Re-design of specific work areas will occur 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary          Capital      Expense        Total 
COST ESTIMATE 
Original estimate                            $0    $2,731,000    $2,731,000 
Estimate increase                           $0     $475,000     $475,000 
Revised estimate                           $0    $3,226,000    $3,226,000 
AUTHORIZATION 
Previous authorizations                        $0    $2,731,000    $2,731,000 

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 7 of 9 
Meeting Date: November 22, 2016 
Current request for authorization                 $0     $475,000     $475,000 
Total authorizations, including this request           $0    $3,226,000    $3,226,000 
Remaining amount to be authorized             $0         $0         $0 
Annual Budget Status and Source of Funds 
The Flight Corridor Safety Program costs are expense costs. $150,000 was budgeted in 2015 to
develop environmental documents to support the program.  $750,000 was included in the
Aviation Division's budget for 2016. The additional funds needed in 2016 are available from
within the Capital Development Departments' expensebudgets. Future annual budgets will
include provisions for the rest of the program. 
Additional funding for Phase 1  monitoring and additional plantings as needed to offset
unexpected mortality of vegetation  will be included in the annual Aviation  Operations
operating budget requests. 
The full cost of the program will be included in the Airfield Movement Area cost center in the
year the costs are incurred and recovered from the airlines through increased landing fees. As
such, all costs will be paid for out of the Airport Development Fund. If all costs were incurred in
2016, the incremental impact on the airline cost per enplaned passenger would be
approximately $.12. However, as discussed above, most of the costs will be spread into 2017. 
Public Engagement 
Outreach for the Flight Corridor Safety program began briefings in 2015, after the initial
Commission briefing on November 24. Port staff briefed the FAA; the cities of Burien, Des
Moines and SeaTac, the Highline School District; WSDOT; briefed the SeaTac City Council and
participated in the Preliminary Design Review Conference with the City of SeaTac staff. 
The Port hosted a public open house in April 2016; communicated to affected property owners
by registered mail; and published information about the program in several Port newsletters  
Air Mail, which goes to 33,000 area residents, Connections, an electronic newsletter which
reaches 10,000 readers; and via the Port's email and written distribution lists for SEPA-
interested stakeholders. A Port Commission public meeting was held November 1, 2016.
In 2017, an online open house is planned for early 2017, plus public meetings to gather input on
the options for work on sites P4 and P5 (S. 200th area), as well as community input on ecological
community amenities the Port could support in airport-area communities. 
Future Commission briefings and actions are anticipated to include authorization for Phase 2
and 3 environmental and design work in first quarter of 2017, briefings in second and third
quarters on proposed changes to Phase 1 following the community engagement, and design
plans and SEPA for Phases 2 and 3. Construction authorization for Phase 2 work would likely fall
in third quarter 2017. 

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 8 of 9 
Meeting Date: November 22, 2016 
ADDITIONAL BACKGROUND 
Obstructions are any objects penetrating FAA-designated approach and departure paths at or
around an airport posing a potential risk to safe aircraft operations. Obstruction studies and
the related publication of obstruction charts were completed every ten years by the FAA until
approximately 1994. In preparing for the activation of the Third Runway, the FAA performed an
obstruction analysis in 2005 that led to the removal of trees in 2006-2008.  An aerial
obstruction analysis was conducted by the Port in 2015 that identified approximately 1,600
obstruction data points consisting of trees and other vegetation. Subsequent field work was
performed by a third party to verify the aerial obstruction analysis data. The field verification of
the aerial obstruction data resulted in identifying approximately 2,800 tree obstructions at or
around the airport. 
The Port has developed a comprehensive Flight Corridor Safety Program that will address the
removal of obstructions in several phases and span multiple years: 
Phase 1: 2016/2017 - Port-Owned property 
Phase 2: 2017/2018  Public agency-owned properties including Highline Public School
District, Washington State Department of Transportation, Seattle Public Utilities and public
right of way within the cities of Burien, Des Moines and SeaTac. 
Phase 3: 2018/2019 - Residential and Commercial properties 
The Port may change scope elements of this contract and/or introduce into subsequent
contract changes based on input from the surrounding airport communities. 
ATTACHMENTS TO THIS REQUEST 
(1)   Attachment A  Flight Safety Environmental Overview 
(2)   Attachment B  Phase 1 Implementation Plan (selected pages) 
(3)   Attachment C - SEPA Mitigated Determination of Non-Significance 
(4)   Attachment D  Site Plan 
(5)   Attachment E  FAA Letters 
(6)   Presentation Slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
October 25, 2016  Commission considered authorization to award the irregular bid exceeding
10 percent of the engineer's estimate to the lowest responsible bidder but took no action. 
October 11, 2016  Commission considered authorization to award the irregular bid exceeding
10 percent of the engineer's estimate to the lowest responsible bidder but took no action. 
August 23, 2016  A special announcement to Commission by Aviation Operations Director,
Michael Ehl, in regards to the Port issuing the final environmental Mitigated Determination
of Non-Significance (MDNS) for tree removal and replanting as part of the Flight Corridor
Safety Program in Phase One. 

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 6b                      Page 9 of 9 
Meeting Date: November 22, 2016 
August 9, 2016  Commission authorized to advertise and execute a major works construction
contract in the amount of $1,831,000 for a total project cost of $2,731,000. 
February 9, 2016  Commission authorized to design, advertise and execute a major works
construction contract in the amount of $750,000 for a total estimate project cost of
$900,000. 
November 24, 2015   Commission briefed on the Flight Corridor Safety Obstruction
Management program. The briefing provided an overview of state and federal
laws/requirements, and staff's recommendation of a phased delivery approach to complete
the program. 














Template revised September 22, 2016.

Limitations of Translatable Documents

PDF files are created with text and images are placed at an exact position on a page of a fixed size.
Web pages are fluid in nature, and the exact positioning of PDF text creates presentation problems.
PDFs that are full page graphics, or scanned pages are generally unable to be made accessible, In these cases, viewing whatever plain text could be extracted is the only alternative.