6g Memo Air Cargo Road Safety Improvements

COMMISSION 
AGENDA MEMORANDUM                        Item No.          6g 
ACTION ITEM                            Date of Meeting      October 13, 2020 
DATE:     October 5, 2020 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Mike Tasker, Senior Manager, Aviation Facilities and Infrastructure 
Wayne Grotheer, Director Aviation Project Management Group 
SUBJECT:  Air Cargo Road Safety Improvements (CIP #C102162) 
Amount of this request:               $9,936,410 
Total estimated project cost:         $13,500,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to (1) amend a purchased services
contract to maintain the temporary traffic signal for a total contract value above $300,000, (2)
advertise and award a major public works contract, and (3) authorize an additional $9,936,410
for the construction of the Air Cargo Road Safety Improvements project at Seattle-Tacoma
International Airport for a total estimated project cost of $13,500,000. 
EXECUTIVE SUMMARY 
Prior to the pandemic both Air Cargo Road and S. 170th Street experienced heavy daily traffic
volumes and significant congestion as one of the two primary local access routes to the Main
Terminal. The Air Cargo Road roadway assets are well beyond their useful life expectancy and
are failing. The Cell Phone Lot was completed in 2014 but the permanent access improvements
were not completed. These improvements need to be completed to reduce traffic congestion
and for the Port to meet its remaining obligation under the State Environmental Protection Act
(SEPA) and to the City of SeaTac. These improvements could be displaced as soon as three to
ten years after they are completed by future development identified in the Sustainable Airport
Master Plan (SAMP). This project will include a Project Labor Agreement. 
JUSTIFICATION 
This project supports the following Century Agenda and Aviation Division strategic goals: 
1)  Advance this region as a leading tourism destination and business gateway. 
2) Meeting the region's air transportation needs at Seattle-Tacoma International Airport for
the next 25 years. 
3)  Operate a world-class international airport by ensuring safe and secure operations. 


Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. __6g__                              Page 2 of 6 
Meeting Date: October 13, 2020 
The Air Cargo Road Safety Improvements project is a renewal and replacement project that will
bring the roadway corridor up to current standards for operation and safety and complete the
permanent access improvements for the Cell Phone Lot.  Air Cargo Rd.  was originally
constructed circa 1970 and is the primary access for a number of airfield, cargo, and landside
facilities.  The existing pavement and lighting assets between S. 166th St. and S. 170th St. are
failing and are well beyond their useful life. The Cell Phone Lot was relocated in 2014 to its
current location to support the expansion of aircraft hardstand parking on the airfield. The Air
Cargo Rd. on-ramp to the southbound Northern Airport Expressway is one of the primary
access routes to the Main Terminal, and currently supports Cell Phone Lot customers, local
businesses, ground transportation, rental car busing, and other airport uses.
Despite the COVID-19 pandemic and the reduced traffic levels in areas affected by this project,
the project is still required since the existing roadway assets are failing and well beyond their
useful life and the Port needs to meet its obligations under SEPA and to the City of SeaTac. 
Diversity in Contracting 
Project staff along with the Diversity in Contracting Department have set a women and minority
business enterprise (WMBE) aspirational goal of 9% for this construction contract. 
DETAILS 
In order to reduce overall costs and impacts to the traveling public, in July 2017 the Commission
authorized the transfer of the remaining scope and budget from the Cell Phone Lot project (CIP
#C800324) into the Air Cargo Rd. Safety Improvements project, for a total combined project
budget of $8,819,590. The total project budget has increased to $13,500,000 and is primarily
attributed to scope changes (two additional traffic signals, reconfiguration and minor expansion
of the Cell Phone Lot, landscaping per current airport standards, unknown site conditions, and
sewer main capacity improvement), greater utilization of consultant support vs. staff support,
and cost escalation due to the one-year delay in construction. 
In February 2014, the Port of Seattle entered into a small works construction contract for the
installation, operation, maintenance, and removal of a temporary traffic signal to support Cell
Phone Lot operations. In April 2015, the Commission authorized combining the remaining Cell
Phone Lot scope with the Air Cargo Rd. Safety Improvements project. The Port of Seattle
entered into a contract with American Electrical Services, Inc. to continue to operate and
maintain the temporary traffic signal in May 2015. The current contract expires at the end of
November 2020 and has a total contract value of $247,500. This contract needs to be extended
for up to one year to support the completion of the permanent access improvements.  The
amendment would increase the total contract value by an estimated $75,000, for a total
estimated contract value of $322,500. In addition, the Port is negotiating the purchase of the
existing  traffic  signal  equipment  from  American  Electrical  Services,  Inc.  to  support  the
construction of the Air Cargo Rd. Safety Improvements project. The purchase cost is estimated

Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. __6g__                              Page 3 of 6 
Meeting Date: October 13, 2020 
at less than $150,000.  The funding for these costs is included in the remaining budget and
authorization for the Cell Phone Lot project. 
Scope of Work 
As identified in the attachment, the general improvement area for the project includes Air
Cargo Rd. from S. 166th St. to S. 170th St., S. 170th St. from Air Cargo Rd. to International Blvd.,
and the Cell Phone Lot. The improvements include pavement rehabilitation, traffic signals,
roadway illumination, signage, sidewalks, parking lot modifications, bus stops, utilities,
landscaping, and intelligent transportation systems.
As part of the Port's environmental and sustainability goals, this project is installing pervious
pavement for the Port-owned sidewalks and parking lot modifications. 
Schedule 
Activity 
Construction start                                2020 Quarter 4 
In-use date                                       2021 Quarter 3 
Cost Breakdown                                      This Request           Total Project 
Design                                                    $224,089             $3,700,000 
Construction                                             $9,712,321             $9,800,000 
Total                                                          $9,936,410             $13,500,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1   Maintain the existing temporary traffic signal and do not complete the
improvements. 
Cost Implications: $1,300,000 
Pros: 
(1)   Lowest level of investment for the Port.  The above costs include the costs for the
temporary traffic signal operation and maintenance agreement, and the project costs
that would be expensed if the project did not move forward. 
Cons: 
(1)   The Air Cargo Rd. roadway assets are not renewed resulting in further degradation of
the level of service and potential loss of operational use in the short-term. 
(2)   Motorized and non-motorized transportation improvements are not completed to
support safe and efficient operations. 
(3) The Port's obligations under SEPA and to the City of SeaTac for the Cell Phone Waiting
Lot are not satisfied. 
This is not the recommended alternative. 

Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. __6g__                              Page 4 of 6 
Meeting Date: October 13, 2020 
Alternative 2  Complete the proposed improvements. 
Cost Implications: $13,500,000 
Pros: 
(1)   The Air Cargo Rd. roadway assets are renewed avoiding further degradation of the
level of service and potential loss of operational use in the short-term. 
(2)   Motorized and non-motorized transportation improvements are completed to support
safe and efficient operations. 
(3)   The Port's obligations under SEPA and to the City of SeaTac for the Cell Phone Waiting
Lot are satisfied. 
Cons: 
(1)   Most of the improvements could be displaced as soon as three to ten years after they
are completed by SAMP future development. 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
The financial implications for the Cell Phone Waiting Lot project (CIP #C800324) are not
included in the tables below. This includes the costs associated with the contract that supports
the operation and maintenance of the temporary traffic signal. 
Cost Estimate/Authorization Summary               Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                 $3,052,000               $0      $3,052,000 
Previous changes  net                          $4,938,000      $2,710,000      $7,648,000 
Current change                                $2,800,000              $0      $2,800,000 
Revised estimate                              $10,790,000      $2,710,000    $13,500,000 
AUTHORIZATION 
Previous authorizations                          $2,673,590        $890,000      $3,563,590 
Current request for authorization                $8,116,410      $1,820,000      $9,936,410 
Total authorizations, including this request      $10,790,000      $2,410,000     $13,500,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
The Air Cargo Rd. Safety Improvements project (CIP #C102162) is included in the 2020-2024 
capital budget and plan of finance as a committed project, with a total capital budget of
$7,990,000. A budget increase of $2,800,000  will be transferred from the Aeronautical
Allowance (CIP #C800753) for a total revised capital budget of $10,790,000 resulting in zero net
change to the Aviation Capital Budget. The funding source s for this project are revenue bonds 
(amortized over ten years). 

Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. __6g__                              Page 5 of 6 
Meeting Date: October 13, 2020 
Financial Analysis and Summary 
Project cost for analysis              $13,500,000 
Business Unit (BU)                  Roadways 
Effect on business performance     NOI after depreciation will  decrease  even though a
(NOI after depreciation)             portion of the cost are allocated to airline rate bases. 
IRR/NPV (if relevant)                N/A 
CPE Impact                        $0.08 in 2022 and $0.03 for subsequent years. 
Future Revenues and Expenses (Total cost of ownership) 
Port staff estimates the impacts to the on-going operation and maintenance costs associated
with the Cell Phone Lot to be $25,000 per year for the lot operations, and $45,000 per year for
the temporary traffic signal.  The cost to operate and maintain the permanent traffic signal
systems is estimated at $15,000 and is being requested for Aviation Maintenance's budget as
part of the 2021 budget process. The operating and maintenance costs for the roadway
illumination  system  are  anticipated  to  decrease  with  LED  based  systems.   Landscape
maintenance costs for the Cell Phone Lot and adjacent roadways are anticipated to increase. 
ADDITIONAL BACKGROUND 
In September 2017, the Port completed repairs to critical pavement systems on Air Cargo Rd. 
due to their failing condition. These repairs were completed for a total cost of $157,152. 
The permanent traffic signal systems at the Air Cargo Rd. on-ramp to the southbound Northern
Airport Expressway will be the Port's responsibility to operate and maintain. In 2019, the Port
entered into an interlocal agreement with King County to support the design, construction,
operation, and maintenance of these permanent traffic signal systems. The permanent traffic
signal systems at the southbound and northbound Northern Airport Expressway off-ramps to S
170th St. will be operated and maintained by the City of SeaTac. 
The SEPA checklist for the Cell Phone Waiting Lot project was completed in July 2013. In April
2020, the Port updated the environmental evaluation to include the Air Cargo Rd. Safety
Improvements project and issued a SEPA determination of non-significance. 
This project supports a range of existing facilities that are operated by Port tenants, owned by
private entities, or are utilized by a range of airport operators. During design, three separate
outreach efforts were conducted to identify potential problems along the corridor, describe the
proposed improvements, and identify the anticipated construction impacts. Adjacent property
owners, airport tenants, and operators were invited to participate in these workshops.  In
addition, City of SeaTac staff participated in each design review session. 
ATTACHMENTS TO THIS REQUEST 
(1)   Presentation slides. 

Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. __6g__                              Page 6 of 6 
Meeting Date: October 13, 2020 

PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
July 11, 2017  The Commission authorized the Executive Director to 1) execute a
professional services contract; 2) execute an interlocal agreement with King County for
the operation and maintenance of traffic signals; 3) proceed with the design and
preparation of contract bid documents for the Air Cargo Rd. Safety Improvements
project; 4) utilize Port crews and small works contract to complete the early pavement
repair work; and 5) transfer $3,019,590 of budget from the Cell Phone Lot project. 
April 14, 2015  The Commission authorized the Chief Executive Officer to 1) execute a
design contract for the Cell Phone Lot and the Air Cargo Rd. Safety Improvements
projects at the Airport; and 2) to continue the Cell Phone Lot project for an additional
$649,900.  This  also  included  the  extension  of  the  operation  and  maintenance
agreement for the Cell Phone Lot traffic signal. 
May 6, 2014  The Commission authorized an additional $822,100 to complete the
construction of the Cell Phone Lot at the Airport. 
September 10, 2013 - The Commission authorized the Chief Executive Officer to 1)
proceed with construction of the Cell Phone Lot project at the Airport; 2) utilize Port
Construction Services crews to self-perform the construction; 3) advertise for bids and
award a major public works project-specific unit price contract for asphalt and striping;
and 4)  execute and interlocal agreement with the City of SeaTac for the design,
installation, and operation of a temporary traffic signal on S 170th St. for an additional
$1,420,000. 
December 11, 2012  The Commission authorized the Chief Executive Officer to proceed
with the design of the Cell Phone Lot project for $408,000. 








Template revised June 27, 2019 (Diversity in Contracting).

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