COMMISSION 
AGENDA MEMORANDUM                Item No.       4b 
ACTION ITEM                   Date of Meeting   November 14, 2017 
DATE:    October 20, 2017 
TO:     Dave Soike, Interim Executive Director 
FROM:   Ralph Graves, Senior Director, Capital Development 
Janice Zahn, Assistant Engineering Director, Construction Services 
SUBJECT:  Central Terminal Stairs Project Change Order # 10 (CIP #C800716) 
Amount of this request:                $0 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to execute Change Order 10 to
Contract MC-0318654, Central Terminal Stairs Project at Seattle-Tacoma International Airport,
to extend the contract duration by 76 calendar days and for the deductive amount of
$64,508.00. No additional funds are being requested. 
EXECUTIVE SUMMARY 
This project built two stairways near the central checkpoint to provide egress capacity from the
mezzanine level of the Airport to remedy fire life-safety concerns and allow use of unoccupied
portions of the building. Gaining additional usable assembly and office space within the limited
footprint of the terminal is valuable to both airlines and traveler services. The stairways and fire
sprinklers increase safety and accessibility for airport users. 
The original construction contract was $1.55 million, with a total project budget of $2.9 million.
The execution of this change order reconciles all contract time issues with the contractor, PCL
Construction. All 76 days are inexcusable and result in a cost credit back to the Port of
$64,508.00. No additional funds are needed. 
JUSTIFICATION 
Airport staff is managing an increasingly scarce resource of available office space in the main
terminal largely due to continued growth in demand from airlines operating at the Airport. This
project is now in use and has made 10,000 square feet of previouslyun-leasable space usable 
with proper code compliant egress. 
It should be noted that in addition to providing sprinklers that benefit the two stairs and their
associated egress pathways, the fire sprinklers benefits the Baggage Optimization project which
will be able to use an egress pathway nearby once the fire sprinklers are installed. 

Template revised September 22, 2016.

COMMISSION AGENDA  Action Item No. 4b                       Page 2 of 3 
Meeting Date: November 17, 2017 

DETAILS 
On September 29, 2016, the Port executed a construction contract withPCL Construction for 
the amount of $1,546,759.00 with a contract completion date of May 30, 2017. Early in the
project the completion date was revised to April 28, 2017 as a result of a value engineering
change. The actual Substantial Completion was not achieved for the project until July 13, 2017,
a project delay of 76 calendar days.
The contractor experienced production issues with the installation of the stainless steel
paneling. This was the single issue that caused the time impact and ultimately caused the delay
to the contract. The contractor eventually completed the panel installation allowing the Port to
issue Substantial Completion. Since this panel work is base contract work, the contractor is
solely responsible for the 76 days of schedule delay. 
Scope of Work 
Work elements included installation of two new stairways from the mezzanine to the concourse
level and installation of a fire sprinkler system. 
Schedule 
Activity 
Commission design authorization          2015 Quarter 4 
Commission construction authorization       2015 Quarter 4 
Construction start                      2016 Quarter 3 
In-use date                          2017 Quarter 3 
Contract Cost Breakdown             Total 
Original Contract Amount                $1,546,759.00 
Current Executed Change Order Amount      $ 26,825.00 
Current Contract Amount               $1,573,584.00 
Change Order #10                     ($64,508.00) 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not authorize the issuance of the change order, and start the dispute
resolution processes. 
Cost Implications: Additional staff soft costs, potential legal expenses. 
Pros: 
(1)   None. 
Cons: 
(1)   Delays project closeout and increase staff soft costs. 
(2)   Creates a risk potential for litigation and potentially higher settlement amount. 

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

COMMISSION AGENDA  Action Item No. 4b                       Page 3 of 3 
Meeting Date: November 17, 2017 

This is not the recommended alternative. 
Alternative 2  Authorize the issuance of the change order for the deductive amount of
$64,508.00 and add 76 calendar days.
Cost Implications: None. 
Pros: 
(1)   Settles time impacts with the contractor. 
Cons: 
(1)   None. 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
There is no additional funding being requested in this memo. The project has adequate funds
to cover this request. 
ATTACHMENTS TO THIS REQUEST 
None 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
(1)  September 6, 2016  Authorization to: 1) award and execute major public works construction
contract in excess of 10 percent of the engineers estimate, and 2) increase project budget by
$350,000. 
(2)  July 12, 2016  Authorization to advertise for bids and execute a major construction contract. 
(3)  October 27, 2015  Authorization to prepare design and construction bid documents. 








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