Item No. : 7a_supp 
Date of Meeting: April 1, 2014 
Service Tunnel Seismic
Improvements 
CIP #102112 
Service Tunnel
Renewal Replacement 

1

Project Goals and Budget 
Project Goal: Preserve and
protect critical Airport
infrastructure and improve life
safety by seismically reinforcing
the Service Tunnel structure 
Project Budget: $27.6M 
Project Schedule: Spring 2014 to
December 2018 

2

Key Service Tunnel Facts 
Service Tunnel Length = 2,500 ft. 
Two portals, one north and one
south from Air Cargo Road 
Driving surface for Arrivals drive
and structurally integrated to
Main Terminal and Departures
drive 
Main access to Central Loading
Dock and concessions deliveries 


3

Previous Airport Seismic Improvements 
Logical and necessary parts of the Airport seismic program
since this is one of the last and oldest parts of the Airport. 
Airport Seismic           Year 
Improvements 
Airport Roads and Bridges    2001 
Main Terminal  Ticketing     1999 
Main Terminal  Baggage    1998 
Claim 
Ground Access Seismic      1997 
Main Garage            1990 

4

Service Tunnel Layout 

Service Drive 
Service Drive 
Transition 
Transition 
Current Conditions: 
7 different segments     Tunnel Section 
Tunnel Section 
3 different types of construction 
Built in 2 different contracts 

5

Proposed Service Drive Section 



6

Proposed Cast Tunnel Section 
North Cast-in-Place Tunnel 
Support both Arrivals and
Departures drives 
Upgrades to structure
would require
improvements to carrying
capacity and shear
resistance. 
Suggested improvements
include structural
reinforcement to enhance
seismic performance. 

7

Project Delivery Strategy 
Delivery Methodology: Design-Build 
Benefits: 
Early Start 
Staging flexibility 
Schedule 
Promotes innovative solutions from the D-B team 
Design: May 2014  1st QTR 2015 
Construction: 2nd QTR 2015  4th QTR 2018 
Budget: $27.6M 
30% Design/
Project                       Procure           Begin
Bridging
Approval                     Design-Build       Construction 
Docs 

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