Item No.       6c_supp_b 
Date of Meeting    December 8, 2015 
SeaTac International Airport
NorthSTAR Program
Action Briefing
December 8, 2015

Agenda
Schedule
Scope
Budget
Phasing


North Satellite Renovation/Expansion
2

NSAT Renovation & NSTS Lobbies
Q4 15     Q1 16         Q2 16         Q3 16          Q4 16         Q1 17         Q2 17         Q3 17          Q4 17         Q1 18         Q2 18
ID             Task Name
Dec  Jan  Feb  Mar  Apr  May  Jun  Jul  Aug  Sep  Oct  Nov  Dec  Jan  Feb  Mar  Apr  May  Jun  Jul  Aug  Sep  Oct  Nov  Dec  Jan  Feb  Mar  Apr  May  Jun
1  Commission Authorization Preliminary Work
2  100% Design - Prelim Work Pkg #1
3  100% Design  Prelim Work Pkg #2
4  Commission Authorization - MACC
5  100% Design  Base Building
6  Construction  Prelim Work Pkg #1                        PLB Relocation
7  Construction  Prelim Work Pkg #2                                  Mass Excavation for Expansion / Utility Reroute / Structural Steel
8  Construction  Base Building                                                                                  Expansion Buildout /Renovation >>>>
December 8, 2015 Commission Meeting
Request authorization for preliminary construction, additional preconstruction
services & construction audit services
Q3  2016 Commission Meeting
Request authorization for remaining construction services

Commission Schedule and Actions
3

NSAT Renovation & NSTS Lobbies
Request Breakdown         Value    Authorization Request Scope of Work:
Direct Construction Cost       $67.5 M    Relocate existing passenger loading bridges     Legend:
Relocate aircraft positions                      PWP #1
Design Development          $5.7 M                            oPWP #2
Reconfigure fuel pits
Escalation                  $4.7 M    Relocate aircraft gate infrastructure
Re-route site utilities
GC/CM Bonds, NSS, Fee                   $8.5 M    Construct access stairs for ground boarded aircraft
o Conduct mass excavation
Construction Contingency                    $1.5 M 
o Install shoring associated with mass excavation
Sales Tax                    $7.7 M    o Demolish and replace apron concrete panels
o Drill shaft foundations
RMM (Expense)            $2.5 M    Purchase and install a section of fixed loading bridge
o Conduct selective demolition
Total                      $98.1 M 
o Construct a waterproof enclosure the north end of the building
o Purchase the following for the entire project:
Structural steel
Vertical circulation components (elevators & escalators)
Major electrical and mechanical equipment
Fuel hydrants (long-lead)
Curtainwall system
Project Authorization breakdown
4

NSAT Renovation & NSTS Lobbies
Current     Forecast     Growth
Budget
Design Phase                 $62.1 M      $66.1 M      $4.0 M 
Construction Phase           $325.0 M     $388.4 M     $63.4 M 
Sales Tax                      $28.8 M      $34.9 M      $6.1 M 
Subtotal (Capital)               $415.9 M      $489.4 M     $73.5 M 
Expense (RMM)                       $5.8 M     $11.8 M     $6.0 M 
Total                         $421.7 M      $501.2 M     $79.5 M 
Overall growth at 60% attributed to:
30% added scope items (13) incorporated into the design, as noted in prior 2015 Commission
briefing ($35.4M)
60% estimated market driven growth ($8.5M)
Increased costs associated with design refinement from 30% to 60%, unit cost adjustments and
updated subcontractor pricing ($29.6M)
Increased asbestos abatement associated with fireproofing overspray removal ($6.0M)
Forecasted budget range $470-490 million (after Value Engineering)
Project Cost Growth Summary
5

NSAT Renovation & NSTS Lobbies

Sequence of Events
1) N10 Fuel Pit/Stairs
2) N11 to N10A PLB Relo
3) RON new walkway
4) RON N12A to N11B
5) RON N12B to N11C
6) RON N12C to N11D
7) N14 to N3A PLB Relo
8) N16 Egress Stairs
9) Remove N15

New Positions / Structures
Deleted Positions / Structures

North Satellite  PWP #1 Construction Phasing
6

NSAT Renovation & NSTS Lobbies

Sequence of Events
1) Construct waterproof enclosure for north
end of the building
2) Conduct selective demolition
3) Install shoring associated with mass
excavation
4) Conduct mass excavation
5) Demolish and replace apron concrete
panels
6) Drill shaft foundations
7) Purchase selected equipment/material

Construction Zone (fenceline)
PWP #2 Building Footprint
(excavation)

North Satellite  PWP #2 Construction Phasing
7