PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA               Item No.       4i 
ACTION ITEM 
Date of Meeting     August 9, 2016 
DATE:    July 28, 2016 
TO:      Ted Fick, Chief Executive Officer 
FROM:   Stuart Mathews, Director, Aviation Maintenance 
SUBJECT:  Airfield Snow Removal Equipment Procurement (CIP #C800775) 
Amount of This Request:           $25,000     Source of             Airport
Funds:        Development Fund 
Est. Total Project Cost:           $3,300,000 
Est. State and Local Taxes:         $330,000 
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to increase funding for the
purchase of airfield snow equipment from an initial authorization of $3,275,000 to an increased
authorization of $3,300,000. This will allow the Chief Executive to execute contracts for the
purchase of all planned airfield snow removal equipment previously approved and included
within CIP #C800775 at Seattle-Tacoma International Airport. 
SYNOPSIS 
Following previous commission authorization on March 22, 2016, a request for proposal for all
planned equipment including 5 plow/broom combination units and three chassis mounted deicing
spreaders was distributed on May 12, 2016. Upon receipt of all proposals, the total cost of the
equipment was determined to be $3,330,919, approximately $56K above the authorized budget.
Through subsequent negotiations with the low bidders of the equipment, the Central
Procurement Office has reduced the total cost of the equipment to $3,291,578. This results in a
final budget authorization shortfall of   $16,578. To ensure any minor oversights  or
miscalculations do not result in a need for another return to commission, this request has been set
at $25,000, $8,422 above the absolute minimum necessary. 
BACKGROUND 
As noted for the previous commission action in March of 2016, this request for procurement of 
replacement snow removal equipment is the next step in the strategy developed following the
opening of the third runway. Following the opening, the Aviation division began the phased
enhancement and replacement of the snow fleet. This includes the purchase of four high
efficiency, multi-functional combination plow/broom units in 2012/2013 to clear snow and ice
on the two easternmost runways and associated taxiways. 

Template revised May 30, 2013.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
July 28, 2016 
Page 2 of 5 
Utilizing the existing 1991 and 1984 vintage equipment required eight individual pieces of
equipment with eight operators. With the plow/broom combination equipment, the eastern snow
removal team can perform the same task with four operators, allowing resources to be
redeployed to perform removal activities on the western surfaces of runway 16R/34L and its
associated taxiways. This methodology utilizing combination equipment has proven very
effective. 
Utilizing existing equipment, the snow removal team deploys a second team of eight (8)
machines to the western surfaces. This team of eight performs the same task as the team of four
on the eastern surfaces. Following the successful completion of this procurement, the snow
removal team will be able to deploy two nearly identical runway and taxiway snow removal
teams, and a third larger team to perform snow removal activities on ramp surfaces. 

PROJECT JUSTIFICATION AND DETAILS 
Following this purchase of the five new plow/broom combination units the snow removal team
would have two nearly identical teams of four plow/broom combination units. One unit would be
utilized as a rotating asset to provide ready backup for both teams to ensure operational
capability in case one of the active units required maintenance or repair during a snow event. 
The other component of this procurement, the purchase of three sander plows, will allow the
replacement of equipment originally procured in 1984. This equipment will be utilized in
conjunction with four existing pieces of equipment currently used on our ramp operation for
snow and ice removal. This will give us seven total pieces to perform removal operations on the
ramp, an increase of three pieces of equipment from the current configuration without the need
for additional equipment operators. 
Existing plow blades currently installed on the existing truck chassis will be removed and reused
on the new truck chassis/sander bodies as they were procured in 2009 and have significant
life remaining. 
Equipment will be dispositioned as surplus once the procurement is completed, resulting in no
increase to the total snow fleet. Opportunities to allow other airports or similar entities to obtain
the dispositioned equipment will be explored during the disposition process. Equipment will be
maintained utilizing the current auto mechanic staffing. 
Schedule 
Equipment delivery Q1 2017

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
July 28, 2016 
Page 3 of 5 

FINANCIAL IMPLICATIONS 
Budget/Authorization Summary              Capital     Expense   Total Project 
Original Budget                     $2,500,000           $0    $2,500,000 
Previous Authorizations                $3,275,000            $0    $3,275,000 
Current request for authorization            $25,000            $0       $25,000 
Total Authorizations, including this request   $3,300,000            $0    $3,300,000 
Remaining budget to be authorized              $0            $0          $0 
Total Estimated Cost                  $3,300,000            $0    $3,300,000 
Budget Status and Source of Funds 
This project was included in the 2016-2020 capital budget and plan of finance with a budget of
$2,500,000. The budget increase at intial commission authorization was to accommodate three
small capital project requests to replace snow fleet equipment with the large capital project
C800775. This budget increase was transferred from the Aeronautical Allowances CIP
(C800404) resulting in no net change to the airport's capital budget. This small additional budget
authorization will also be transferred from the Aeronautical Allowances CIP (C800404) resulting
in no net change to the airport's capital budget. The funding sources will include the Airport
Development Fund and future revenue bonds. 
Financial Analysis and Summary 
CIP Category             Renewal/Enhancement 
Project Type              Renewal and Replacement 
Risk adjusted discount rate     N/A 
Key risk factors             N/A 
Project cost for analysis        $3,300,000 
Business Unit (BU)          Airfield 
Effect on business performance  NOI after depreciation will increase 
IRR/NPV             N/A 
CPE Impact             $0.01 in 2017 
Lifecycle Cost and Savings 
This project is not anticipated to add costs to the Aviation Maintenance department expenditures.
By dispositioning surplus equipment, the total amount of equipment maintained and operated by
the snow removal team is anticipated to remain the same. Anticipated maintenance costs are
expected to be similar to current maintenance costs. Significant repair costs may be avoided due
to the reliability of the new equipment. Repair costs for the new equipment are expected to be
less than the current equipment scheduled for disposition.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
July 28, 2016 
Page 4 of 5 
STRATEGIES AND OBJECTIVES 
This project promotes the Century Agenda strategy of meeting the region's air transportation
needs at Seattle-Tacoma International airport for the next 25 years. Ensuring reliable airport
operations, even in times of inclement weather, is necessary to meet this need. This project also
meets the Aviation Division strategy to operate a world-class international airport by ensuring
safe and secure operations. One of the objectives in this strategy is to increase overall runway
availability during snow events. Maintaining an effective and efficient snow removal fleet is
important to meeting that objective. 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
1. Procure one less Plow/Broom combination unit than originally planned. 
Cost Estimate: $2,900,000 
Pros: 
Replace 25 to 30 year old equipment with more effective up-to-date machines. This
reduces the risk of equipment failure that could impact airport operations. 
Has a lower capital expenditure than alternative number 2. 
Cons: 
Due to the elimination of one Plow/Boom combination unit, this option does not
provide the operational readiness and flexibility that the full procurement provides.
This fifth Plow/Broom unit will function with the ramp removal team when all other
Plow/Broom equipment is available. When necessary, this unit will be utilized to
backfill on either of the two runway teams. Failure to procure this unit increases the
risk of impact to operations during a snow event. One less piece of equipment will be
available for snow removal. 
This is not the recommended alternative 

2. Procure new snow equipment for delivery in a single season in 2017. 
Cost Estimate: $3,300,000 
Pros: 
Replace 25 to 30 year old equipment with more effective up-to-date machines. This
reduces the risk of equipment failure that could impact airport operations. 
Provides a higher level of operational readiness and flexibility with all eight (8)
pieces of equipment available for snow removal. This fifth Plow/Broom unit will
function with the ramp removal team when all other Plow/Broom equipment is
available. When necessary, this unit will be utilized to backfill on either of the two
runway teams

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
July 28, 2016 
Page 5 of 5 
Cons: 
Requires a larger capital expenditure. 
Consumes capital funds that could be utilized for other projects. 
This is the recommended alternative 
ATTACHMENTS TO THIS REQUEST 
None. 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
March 22, 2016,  Commission authorized the Chief Executive Officer to execute
contracts for the purchase of airfield snow removal equipment (CIP #C800775) at
Seattle-Tacoma International Airport for a total authorization of $3,275,000.