COMMISSION 
AGENDA MEMORANDUM                        Item No.          8d 
ACTION ITEM                            Date of Meeting       April 12, 2022 
DATE:      March 21, 2022 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Tina Soike, Director Engineering Services 
Janice Zahn, Assistant Engineering Director, Construction Services 
SUBJECT:  Air Cargo Road Safety Improvements (MC-0320017/WP#U00085) Change Order
Over 60 Days 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to execute a change order to
Contract MC-0320017 Air Cargo Road Safety Improvements to add up to 100 Calendar days to
the Contract duration to reconcile the contractual completion date to the actual completion date. 
EXECUTIVE SUMMARY 
This change order requires the addition of up to 100 calendar days to the Contract duration.
Commission action is required under the General Delegation of Authority because the Change
Order includes a time extension of more than sixty days. No additional project funding is required 
with this request. 
Description of Change Order 
This change order revises the contract completion date. 
Background 
The Air Cargo Road Safety Improvements project is a renewal and replacement project that brings
the roadway corridor up to current standards for operation and safety and completes the
permanent access improvements for the Cell Phone Lot. Air Cargo Road was originally
constructed circa 1970 and is the primary access for a number of airfield, cargo, and landside
facilities. The existing pavement and lighting systems 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 roadway
improvements include pavement rehabilitation, traffic signals, roadway illumination, signage,
sidewalks,  parking  lot  modifications,  bus  stops,  utilities,  landscaping,  and  intelligent
transportation systems.
On March 20, 2021, the Port executed a construction contract with Tucci and Sons, Inc. in the
amount of $5,002,963.30. The Contract was set up to be completed in two phases. Most of the 
work was scheduled to be completed by October 8, 2021, as part of the first phase. The second

Template revised September 22, 2016.

COMMISSION AGENDA  8d                                              Page 2 of 3 
Meeting Date: April 12, 2022 
phase included the traffic signals, roadway illumination, and intelligent transportation systems
and was scheduled to be completed by January 16, 2022, since we anticipated that some
materials would take longer to procure and install. We did complete the first phase on time and
reopened the Cell Phone Lot with the new entrance to the public on October 8, 2021.
Unfortunately, the long lead items have taken even more time to procure than anticipated which
is driven by COVID supply chain issues. The decorative roadway illumination fixtures have been
the hardest item to receive. The light fixtures were modified at the request of the City of SeaTac
to match their standard and the costs were settled in Change Order #5 on August 6, 2021. Costs
for this change was captured in a change order but the long procurement of these light fixtures
was not foreseen at the time of the change. The Port and the Contractor mutually agreed that
this procurement delay is out of the control of both the contractor and Port, and we are granting
a time extension for up to 100 Excusable and Non-Compensable Days. The current value of the
Contract is $5,901,781.27.
FINANCIAL IMPLICATIONS 
There is no additional funding being requested with this action. 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not authorize the issuance of the Change Order and delete the light fixtures
from the contract. 
Pros: 
(1)   The contract might be closed out earlier than the current schedule. 
Cons: 
(1)   The project would not complete the roadway illumination improvements bringing the
roadway corridor up to current standards.  This might put the Port at legal risk if
someone was injured on our property or within the adjacent City right-of-way. 
(2)   The Port's obligations under SEPA and to the City of SeaTac for the Cell Phone Lot are
not satisfied. 
This is not the recommended alternative. 
Alternative 2  Authorize the issuance of the Change Order to extend the Contract duration by
up to 100 days. 
Pros: 
(1)   This completes the roadway illumination improvements bringing the roadway corridor
up to current standards. 
(2)   The Port's obligations under SEPA and to the City of SeaTac for the Cell Phone Lot are
satisfied. 
(3)   The Port staff has analyzed the schedule delays and established the change order
amount and time extension that is fair and reasonable.

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

COMMISSION AGENDA  8d                                              Page 3 of 3 
Meeting Date: April 12, 2022 
Cons: 
(1) The project is completed and closed out later than planned.
This is the recommended alternative. 
ATTACHMENTS TO THIS REQUEST 
None 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
October 13, 2020  The Commission authorized 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. 
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 170thSt. 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 September 22, 2016; format updates October 19, 2016.